Spin wave damping arising from phase coexistence below Tc in colossal magnetoresistive La0.7Ca0.3MnO3

Helton, Joel S.; Jones, Susumu K.; Parshall, Daniel; Stone, Matthew B.; Shulyatev, Dmitry A.; Lynn, Jeffrey W.

doi:10.1103/PhysRevB.96.104417

Title: Spin wave damping arising from phase coexistence below $T_{c}$ in colossal magnetoresistive ${La}_{0.7} {Ca}_{0.3} {MnO}_{3}$

Abstract

While the spin dynamics of La_0.7Ca_0.3MnO₃ in the ferromagnetic phase are known to be unconventional, previous measurements have yielded contradictory results regarding the damping of spin wave excitations. Neutron spectroscopy measurements on a sample with a transition temperature of T_c = 257 K, higher than most single crystals, unambiguously reveal an anomalous increase in spin wave damping for excitations approaching the Brillouin zone boundary along the [100] direction that cannot be explained as an artifact due to a noninteracting phonon branch. Spin waves throughout the (HK0) plane display a common trend where the spin wave damping is dependent upon the excitation energy, increasing for energies above roughly 15 meV and reaching a full width at half maximum of at least 20 meV. In conclusion, the results are consistent with a model of intrinsic spatial inhomogeneity with phase separated regions approximately 18 Å in size persisting over a large range of temperatures below T_c.

Authors:

Helton, Joel S. ^[1]; Jones, Susumu K. ^[2]; Parshall, Daniel ^[3];

^[4]; Shulyatev, Dmitry A. ^[5]; Lynn, Jeffrey W. ^[3]

United States Naval Academy, Annapolis, MD (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
United States Naval Academy, Annapolis, MD (United States)
National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
National Univ. of Science and Technology "MISiS", Moscow (Russia)

Publication Date:: Wed Sep 13 00:00:00 EDT 2017

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1471944

Alternate Identifier(s):: OSTI ID: 1389896

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 96; Journal Issue: 10; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Helton, Joel S., Jones, Susumu K., Parshall, Daniel, Stone, Matthew B., Shulyatev, Dmitry A., and Lynn, Jeffrey W. Spin wave damping arising from phase coexistence below Tc in colossal magnetoresistive La0.7Ca0.3MnO3.  United States: N. p., 2017. 
Web.  doi:10.1103/PhysRevB.96.104417.

Copy to clipboard


                    Helton, Joel S., Jones, Susumu K., Parshall, Daniel, Stone, Matthew B., Shulyatev, Dmitry A., & Lynn, Jeffrey W. Spin wave damping arising from phase coexistence below Tc in colossal magnetoresistive La0.7Ca0.3MnO3.  United States.  https://doi.org/10.1103/PhysRevB.96.104417

Copy to clipboard


                    Helton, Joel S., Jones, Susumu K., Parshall, Daniel, Stone, Matthew B., Shulyatev, Dmitry A., and Lynn, Jeffrey W. Wed .  
"Spin wave damping arising from phase coexistence below Tc in colossal magnetoresistive La0.7Ca0.3MnO3".  United States.  https://doi.org/10.1103/PhysRevB.96.104417.  https://www.osti.gov/servlets/purl/1471944.

Copy to clipboard


                    
@article{osti_1471944,

  title        = {Spin wave damping arising from phase coexistence below Tc in colossal magnetoresistive La0.7Ca0.3MnO3},

  author       = {Helton, Joel S. and Jones, Susumu K. and Parshall, Daniel and Stone, Matthew B. and Shulyatev, Dmitry A. and Lynn, Jeffrey W.},

  abstractNote = {While the spin dynamics of La0.7Ca0.3MnO3 in the ferromagnetic phase are known to be unconventional, previous measurements have yielded contradictory results regarding the damping of spin wave excitations. Neutron spectroscopy measurements on a sample with a transition temperature of Tc = 257 K, higher than most single crystals, unambiguously reveal an anomalous increase in spin wave damping for excitations approaching the Brillouin zone boundary along the [100] direction that cannot be explained as an artifact due to a noninteracting phonon branch. Spin waves throughout the (HK0) plane display a common trend where the spin wave damping is dependent upon the excitation energy, increasing for energies above roughly 15 meV and reaching a full width at half maximum of at least 20 meV. In conclusion, the results are consistent with a model of intrinsic spatial inhomogeneity with phase separated regions approximately 18 Å in size persisting over a large range of temperatures below Tc.},

  doi          = {10.1103/PhysRevB.96.104417},

  journal      = {Physical Review B},

  number       = 10,

  volume       = 96,

  place        = {United States},

  year         = {Wed Sep 13 00:00:00 EDT 2017},

  month        = {Wed Sep 13 00:00:00 EDT 2017}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1103/PhysRevB.96.104417

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 8 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Spin waves and phonons in the CMR ferromagnet La0.70Ca0.30MnO3
journal, November 2006

Fernandez-Baca, J. A.; Hagen, M. E.; Dai, Pengcheng
Physica B: Condensed Matter, Vol. 385-386
DOI: 10.1016/j.physb.2006.05.104

Spin Wave Theory of Double Exchange Ferromagnets
journal, April 2000

Golosov, D. I.
Physical Review Letters, Vol. 84, Issue 17
DOI: 10.1103/PhysRevLett.84.3974

Magnon softening and damping in the ferromagnetic manganites due to orbital correlations
journal, May 2004

Krivenko, S.; Yaresko, A.; Khaliullin, G.
Journal of Magnetism and Magnetic Materials, Vol. 272-276
DOI: 10.1016/j.jmmm.2003.11.160

Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides
journal, September 1976

Shannon, R. D.
Acta Crystallographica Section A, Vol. 32, Issue 5, p. 751-767
DOI: 10.1107/S0567739476001551

Nanoscale Phase Separation and Colossal Magnetoresistance
book, January 2003

Dagotto, Elbio
Springer Series in Solid-State Sciences
DOI: 10.1007/978-3-662-05244-0

Spin waves in the ferromagnetic metallic manganites ${La}_{1 - x} {({Ca}_{1 - y} {Sr}_{y})}_{x} Mn O_{3}$
journal, August 2007

Moussa, F.; Hennion, M.; Kober-Lehouelleur, P.
Physical Review B, Vol. 76, Issue 6
DOI: 10.1103/PhysRevB.76.064403

Phenomenological model of anomalous magnon softening and damping in half-metallic manganites
journal, September 2013

Solontsov, A.
Physical Review B, Vol. 88, Issue 10
DOI: 10.1103/PhysRevB.88.104402

Structural effects on the magnetic and transport properties of perovskite $A_{1 - x} A_{x}^{'} {MnO}_{3}$ ( $x = 0.25,$ 0.30)
journal, October 1997

Radaelli, P. G.; Iannone, G.; Marezio, M.
Physical Review B, Vol. 56, Issue 13
DOI: 10.1103/PhysRevB.56.8265

Jahn-Teller Phonon Anomaly and Dynamic Phase Fluctuations in ${La}_{0.7} {Ca}_{0.3} {MnO}_{3}$
journal, April 2001

Zhang, Jiandi; Dai, Pengcheng; Fernandez-Baca, J. A.
Physical Review Letters, Vol. 86, Issue 17
DOI: 10.1103/PhysRevLett.86.3823

Charge localization in disordered colossal-magnetoresistance manganites
journal, August 1997

Li, Qiming; Zang, Jun; Bishop, A. R.
Physical Review B, Vol. 56, Issue 8
DOI: 10.1103/PhysRevB.56.4541

Evolution of Spin-Wave Excitations in Ferromagnetic Metallic Manganites
journal, January 2006

Ye, F.; Dai, Pengcheng; Fernandez-Baca, J. A.
Physical Review Letters, Vol. 96, Issue 4
DOI: 10.1103/PhysRevLett.96.047204

Neutron Diffraction Study of the Magnetic Properties of the Series of Perovskite-Type Compounds $[(1 - x) La, x Ca] Mn O_{3}$
journal, October 1955

Wollan, E. O.; Koehler, W. C.
Physical Review, Vol. 100, Issue 2
DOI: 10.1103/PhysRev.100.545

Charge correlations in the magnetoresistive oxide La0.7Ca0.3MnO3 (invited)
journal, June 2001

Lynn, J. W.; Adams, C. P.; Mukovskii, Y. M.
Journal of Applied Physics, Vol. 89, Issue 11
DOI: 10.1063/1.1358331

Magnons in ferromagnetic metallic manganites
journal, July 2007

Zhang, Jiandi; Ye, F.; Sha, Hao
Journal of Physics: Condensed Matter, Vol. 19, Issue 31
DOI: 10.1088/0953-8984/19/31/315204

Indications of Intrinsic Chemical and Structural Inhomogeneity in Lightly Doped ${La}_{1 - x} {Sr}_{x} {MnO}_{3}$
journal, May 2002

Shibata, Tomohiro; Bunker, Bruce; Mitchell, J. F.
Physical Review Letters, Vol. 88, Issue 20
DOI: 10.1103/PhysRevLett.88.207205

Charge Ordering and Polaron Formation in the Magnetoresistive Oxide ${La}_{0.7} {Ca}_{0.3} {MnO}_{3}$
journal, October 2000

Adams, C. P.; Lynn, J. W.; Mukovskii, Y. M.
Physical Review Letters, Vol. 85, Issue 18
DOI: 10.1103/PhysRevLett.85.3954

Double-Focusing Thermal Triple-Axis Spectrometer at the NCNR
journal, January 2012

Lynn, J. W.; Chen, Y.; Chang, S.
Journal of Research of the National Institute of Standards and Technology, Vol. 117
DOI: 10.6028/jres.117.002

Unconventional Ferromagnetic Transition in ${La}_{1 - x} {Ca}_{x} {MnO}_{3}$
journal, May 1996

Lynn, J. W.; Erwin, R. W.; Borchers, J. A.
Physical Review Letters, Vol. 76, Issue 21
DOI: 10.1103/PhysRevLett.76.4046

Thousandfold Change in Resistivity in Magnetoresistive La-Ca-Mn-O Films
journal, April 1994

Jin, S.; Tiefel, T. H.; McCormack, M.
Science, Vol. 264, Issue 5157
DOI: 10.1126/science.264.5157.413

Softening and Broadening of the Zone Boundary Magnons in $\Pr_{0.63} {Sr}_{0.37} {MnO}_{3}$
journal, February 1998

Hwang, H. Y.; Dai, P.; Cheong, S-W.
Physical Review Letters, Vol. 80, Issue 6
DOI: 10.1103/PhysRevLett.80.1316

Confined Spin Waves Reveal an Assembly of Nanosize Domains in Ferromagnetic ${L a}_{1 - x} {C a}_{x} {M n O}_{3}$ ( $x = 0.17, 0.2$ )
journal, February 2005

Hennion, M.; Moussa, F.; Lehouelleur, P.
Physical Review Letters, Vol. 94, Issue 5
DOI: 10.1103/PhysRevLett.94.057006

Colossal magnetoresistant materials: the key role of phase separation
journal, April 2001

Dagotto, Elbio; Hotta, Takashi; Moreo, Adriana
Physics Reports, Vol. 344, Issue 1-3
DOI: 10.1016/S0370-1573(00)00121-6

Phase Separation Scenario for Manganese Oxides and Related Materials
journal, March 1999

Moreo, A.
Science, Vol. 283, Issue 5410
DOI: 10.1126/science.283.5410.2034

Polaron-mediated spin correlations in metallic and insulating $La_{1 - x} A_{x} {MnO}_{3}$ $(A = Ca, Sr, or Ba)$
journal, December 2014

Helton, Joel S.; Pajerowski, Daniel M.; Qiu, Yiming
Physical Review B, Vol. 90, Issue 21
DOI: 10.1103/PhysRevB.90.214411

First-order nature of the ferromagnetic phase transition in $(La ‐ Ca) Mn O_{3}$ near optimal doping
journal, October 2004

Adams, C. P.; Lynn, J. W.; Smolyaninova, V. N.
Physical Review B, Vol. 70, Issue 13
DOI: 10.1103/PhysRevB.70.134414

Short-Range Polaron Correlations in the Ferromagnetic ${La}_{1 - x} {Ca}_{x} {MnO}_{3}$
journal, September 2000

Dai, Pengcheng; Fernandez-Baca, J. A.; Wakabayashi, N.
Physical Review Letters, Vol. 85, Issue 12
DOI: 10.1103/PhysRevLett.85.2553

Percolative phase separation underlies colossal magnetoresistance in mixed-valent manganites
journal, June 1999

Uehara, M.; Mori, S.; Chen, C. H.
Nature, Vol. 399, Issue 6736
DOI: 10.1038/21142

Structure and spin dynamics of ${La}_{0.85} {Sr}_{0.15} {MnO}_{3}$
journal, December 1998

Vasiliu-Doloc, L.; Lynn, J. W.; Moudden, A. H.
Physical Review B, Vol. 58, Issue 22
DOI: 10.1103/PhysRevB.58.14913

Paramagnetic spin correlations in colossal magnetoresistive La $_{0.7}$ Ca $_{0.3}$ MnO $_{3}$
journal, April 2012

Helton, Joel S.; Stone, Matthew B.; Shulyatev, Dmitry A.
Physical Review B, Vol. 85, Issue 14
DOI: 10.1103/PhysRevB.85.144401

Theory of Colossal Magnetoresistance in $R_{1 - x} A_{x} {MnO}_{3}$
journal, September 1997

Sheng, L.; Xing, D. Y.; Sheng, D. N.
Physical Review Letters, Vol. 79, Issue 9
DOI: 10.1103/PhysRevLett.79.1710

Order and dynamics of intrinsic nanoscale inhomogeneities in manganites
journal, July 2007

Lynn, J. W.; Argyriou, D. N.; Ren, Y.
Physical Review B, Vol. 76, Issue 1
DOI: 10.1103/PhysRevB.76.014437

Liquidlike Spatial Distribution of Magnetic Droplets Revealed by Neutron Scattering in ${La}_{1 - x} {Ca}_{x} {MnO}_{3}$
journal, August 1998

Hennion, M.; Moussa, F.; Biotteau, G.
Physical Review Letters, Vol. 81, Issue 9
DOI: 10.1103/PhysRevLett.81.1957

Evolution of the Low-Frequency Spin Dynamics in Ferromagnetic Manganites
journal, May 1998

Fernandez-Baca, J. A.; Dai, P.; Hwang, H. Y.
Physical Review Letters, Vol. 80, Issue 18
DOI: 10.1103/PhysRevLett.80.4012

Spin dynamics in the cubic Heisenberg ferromagnet EuS
journal, December 1984

Bohn, H. G.; Kollmar, A.; Zinn, W.
Physical Review B, Vol. 30, Issue 11
DOI: 10.1103/PhysRevB.30.6504

Magnon damping by magnon-phonon coupling in manganese perovskites
journal, April 2000

Dai, Pengcheng; Hwang, H. Y.; Zhang, Jiandi
Physical Review B, Vol. 61, Issue 14
DOI: 10.1103/PhysRevB.61.9553

Design and operation of the wide angular-range chopper spectrometer ARCS at the Spallation Neutron Source
journal, January 2012

Abernathy, D. L.; Stone, M. B.; Loguillo, M. J.
Review of Scientific Instruments, Vol. 83, Issue 1
DOI: 10.1063/1.3680104

Polaronic metal phases in $L a_{0.7} S r_{0.3} Mn O_{3}$ uncovered by inelastic neutron and x-ray scattering
journal, January 2016

Maschek, M.; Lamago, D.; Castellan, J. -P.
Physical Review B, Vol. 93, Issue 4
DOI: 10.1103/PhysRevB.93.045112

Energy Width of Spin Waves in the Heisenberg Ferromagnet
journal, November 1968

Harris, A. Brooks
Physical Review, Vol. 175, Issue 2
DOI: 10.1103/PhysRev.175.674

Floating zone growth and properties of La1−xAxMnO3 (A=Ca,Sr) single crystals
journal, April 2002

Shulyatev, D.; Karabashev, S.; Arsenov, A.
Journal of Crystal Growth, Vol. 237-239
DOI: 10.1016/S0022-0248(01)02037-1

Polaron formation in the optimally doped ferromagnetic manganites ${La}_{0.7} {Sr}_{0.3} {MnO}_{3}$ and ${La}_{0.7} {Ba}_{0.3} {MnO}_{3}$
journal, December 2008

Chen, Y.; Ueland, B. G.; Lynn, J. W.
Physical Review B, Vol. 78, Issue 21
DOI: 10.1103/PhysRevB.78.212301

Large lattice distortions associated with the magnetic transition in La $_{0.7}$ Sr $_{0.3}$ MnO $_{3}$
journal, December 2013

Weber, F.; Argyriou, D. N.; Prokhnenko, O.
Physical Review B, Vol. 88, Issue 24
DOI: 10.1103/PhysRevB.88.241106

Spatially Inhomogeneous Metal-Insulator Transition in Doped Manganites
journal, September 1999

Fäth, M.
Science, Vol. 285, Issue 5433
DOI: 10.1126/science.285.5433.1540

Evidence for magnetic polarons in the magnetoresistive perovskites
journal, March 1997

Teresa, J. M. De; Ibarra, M. R.; Algarabel, P. A.
Nature, Vol. 386, Issue 6622
DOI: 10.1038/386256a0

Spin waves throughout the Brillouin zone and magnetic exchange coupling in the ferromagnetic metallic manganites ${La}_{1 - x} {Ca}_{x} Mn O_{3}$ $(x = 0.25, 0.30)$
journal, April 2007

Ye, F.; Dai, Pengcheng; Fernandez-Baca, J. A.
Physical Review B, Vol. 75, Issue 14
DOI: 10.1103/PhysRevB.75.144408

Disorder effect on spin excitation in double-exchange systems
journal, January 2005

Motome, Yukitoshi; Furukawa, Nobuo
Physical Review B, Vol. 71, Issue 1
DOI: 10.1103/PhysRevB.71.014446

Spin dynamics in La1−xSrxMnO3
journal, December 1997

Moudden, A. H.; Vasiliu-Doloc, L.; Pinsard, L.
Physica B: Condensed Matter, Vol. 241-243
DOI: 10.1016/S0921-4526(97)00567-X

Cation disorder and size effects in magnetoresistive manganese oxide perovskites
journal, December 1996

Rodriguez-Martinez, Lide M.; Attfield, J. Paul
Physical Review B, Vol. 54, Issue 22
DOI: 10.1103/PhysRevB.54.R15622

Magnons in Ferromagnetic Metallic Manganites
journal, December 2007

Zhang, Jiandi; Ye, F.; Sha, Hao
ChemInform, Vol. 38, Issue 50
DOI: 10.1002/chin.200750226

Energy Width of Spin Waves in the Heisenberg Ferromagnet
journal, August 1969

Harris, A. Brooks
Physical Review, Vol. 184, Issue 2
DOI: 10.1103/physrev.184.606.3

Jahn-Teller Phonon Anomaly and Dynamic Phase Fluctuations in La0.7Ca0.3MnO3
text, January 2001

Dai, Pengcheng; Fernandez-Baca, J. A.; Plummer, E. W.
The American Physical Society
DOI: 10.17877/de290r-2153

New Correlated Model of Colossal Magnetoresistive Manganese Oxides
text, January 2009

Golosov, D. I.
arXiv
DOI: 10.48550/arxiv.0907.5512

Short-range polaron correlations in the ferromagnetic La(1-x)Ca(x)MnO(3)
text, January 2000

Dai, Pengcheng; Fernandez-Baca, J. A.; Wakabayashi, N.
arXiv
DOI: 10.48550/arxiv.cond-mat/0008303

Magnon softening and damping in the ferromagnetic manganites due to orbital correlations
text, January 2001

Krivenko, S.; Yaresko, A.; Khaliullin, G.
arXiv
DOI: 10.48550/arxiv.cond-mat/0112252

Evolution of spin-wave excitations in ferromagnetic metallic manganites
text, January 2005

Ye, F.; Dai, Pengcheng; Fernandez-Baca, J. A.
arXiv
DOI: 10.48550/arxiv.cond-mat/0512368

Unconventional Ferromagnetic Transition in La1-xCaxMnO3
text, January 1996

Lynn, J. W.; Erwin, R. W.; Borchers, J. A.
arXiv
DOI: 10.48550/arxiv.cond-mat/9604170

Magnon Damping by magnon-phonon coupling in Manganese Perovskites
text, January 1999

Dai, Pengcheng; Hwang, H. Y.; Zhang, Jiandi
arXiv
DOI: 10.48550/arxiv.cond-mat/9904372

Similar Records in DOE PAGES and OSTI.GOV collections:

Spin excitations in optimally P-doped ${BaFe}_{2} {({As}_{0.7} P_{0.3})}_{2}$ superconductor

Journal Article Hu, Ding ; Yin, Zhiping ; Zhang, Wenliang ; ... - Physical Review B

We use inelastic neutron scattering to study temperature and energy dependence of spin excitations in optimally P-doped BaFe₂(As_0:7P_0:3)₂ superconductor (T_c = 30 K) throughout the Brillouin zone. In the undoped state, spin waves and paramagnetic spin excitations of BaFe₂As₂ stem from antiferromagnetic (AF) ordering wave vector QAF = ( 1; 0) and peaks near zone boundary at ( 1; 1) around 180 meV. Replacing 30% As by smaller P to induce superconductivity, low-energy spin excitations of BaFe₂(As_0:7P_0:3)₂ form a resonance in the superconducting state and high-energy spin excitations now peaks around 220 meV near ( 1; 1). These results aremore »« less
Cited by 14
https://doi.org/10.1103/PhysRevB.94.094504

Full Text Available
Neutron scattering investigation of rhenium orbital ordering in the $3 d - 5 d$ double perovskite ${Ca}_{2} {FeReO}_{6}$

Journal Article Yuan, Bo ; Clancy, J. P. ; Sears, Jennifer A. ; ... - Physical Review B

Here, we have carried out inelastic neutron scattering experiments to study magnetic excitations in the ordered double perovskite Ca₂FeReO₆. We have found a well-defined magnon mode with a bandwidth of ~50 meV below the ferrimagnetic ordering temperature (T_c ~ 520 K), similar to the previously studied Ba₂FeReO₆. The spin excitation is gapless for most temperatures within the magnetically ordered phase. However, a spin gap of ~10 meV opens up below ~150 K, which is well below the magnetic ordering temperature but coincides with a previously reported metal-insulator transition and onset of structural distortion. The observed temperature dependence of the spinmore »« less
Cited by 4
https://doi.org/10.1103/PhysRevB.98.214433

Full Text Available
Growth and electrical transport properties of ${La}_{0.7} {Sr}_{0.3} {MnO}_{3}$ thin films on ${Sr}_{2} {IrO}_{4}$ single crystals

Journal Article Moon, E. J. ; May, A. F. ; Shafer, P. ; ... - Physical Review B

We report the physical properties of La_0.7Sr_0.3MnO₃ thin films on Sr₂IrO₄ single crystals. The manganite films are deposited using oxide molecular beam epitaxy on flux-grown (001)-oriented iridate crystals. Temperature-dependent magnetotransport and x-ray magnetic circular dichroism measurements reveal the presence of a ferromagnetic metallic ground state in the films, consistent with films grown on SrTiO₃ and La_0.3Sr_0.7Al_0.65Ta_0.35O₃. A parallel resistance model is used to separate conduction effects within the Sr₂IrO₄ substrate and the La_0.7Sr_0.3MnO₃ thin films, revealing that the measured resistance maximum does not correspond to the manganite Curie temperature but results from a convolution of properties of the near-insulating substratemore »« less
Cited by 8
https://doi.org/10.1103/PhysRevB.95.155135

Full Text Available
Spin waves above and below the Verwey transition in ${TbBaFe}_{2} O_{5}$

Journal Article Pajerowski, Daniel M. ; Pratt, Daniel K. ; Hahn, Steven ; ... - Physical Review B

TbBaFe₂O_5+δ (TBFO) is a mixed valence compound with an antiferromagnetic order (T_N=450K) that changes along with the crystal structure and conductivity upon cooling below a Verwey-like transition (TV=280K). This type of double-cell-layered perovskite is useful to study putative charge ordering in fractional valence systems because the crystal structure develops unique sites for the different valence states. While the evolution of the static magnetic structure in the different charge ordered states of TBFO is known, in this study we investigate the effect of charge ordering on the magnetic interactions. Dispersive magnetic excitations measured using single crystal inelastic neutron scattering experiments atmore »« less
Cited by 1
https://doi.org/10.1103/PhysRevB.101.064418

Full Text Available
Neutron scattering studies of the ferroelectric distortion and spin dynamics in the type-1 multiferroic perovskite ${Sr}_{0.56} {Ba}_{0.44} {MnO}_{3}$

Journal Article Pratt, Daniel K. ; Lynn, Jeffrey W. ; Mais, James ; ... - Physical Review. B, Condensed Matter and Materials Physics

The magnetic order, spin dynamics, and crystal structure of the multiferroic Sr0.56Ba0.44MnO3 have been investigated using neutron and x-ray scattering. Ferroelectricity develops at T-C = 305 K with a polarization of 4.2 mu C/cm(2) associated with the displacements of the Mn ions, while the Mn4+ spins order below T-N approximate to 200 K into a simple G-type commensurate magnetic structure. Below TN the ferroelectric order decreases dramatically, demonstrating that the two order parameters are strongly coupled. The ground state spin dynamics is characterized by a spin gap of 4.6(5) meV and the magnon density of states peaking at 43 meV.more »« less
https://doi.org/10.1103/PhysRevB.90.140401

Similar Records

Title: Spin wave damping arising from phase coexistence below T c in colossal magnetoresistive La 0.7 Ca 0.3 MnO 3

Abstract

Citation Formats

Spin waves and phonons in the CMR ferromagnet La0.70Ca0.30MnO3 journal, November 2006

Spin Wave Theory of Double Exchange Ferromagnets journal, April 2000

Magnon softening and damping in the ferromagnetic manganites due to orbital correlations journal, May 2004

Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides journal, September 1976

Nanoscale Phase Separation and Colossal Magnetoresistance book, January 2003

Spin waves in the ferromagnetic metallic manganites La 1 − x ( Ca 1 − y Sr y ) x Mn O 3 journal, August 2007

Phenomenological model of anomalous magnon softening and damping in half-metallic manganites journal, September 2013

Structural effects on the magnetic and transport properties of perovskite A 1 − x A x ′ MnO 3 ( x = 0.25 , 0.30) journal, October 1997

Jahn-Teller Phonon Anomaly and Dynamic Phase Fluctuations in La 0.7 Ca 0.3 MnO 3 journal, April 2001

Charge localization in disordered colossal-magnetoresistance manganites journal, August 1997

Evolution of Spin-Wave Excitations in Ferromagnetic Metallic Manganites journal, January 2006

Neutron Diffraction Study of the Magnetic Properties of the Series of Perovskite-Type Compounds [ ( 1 − x ) La , x Ca ] Mn O 3 journal, October 1955

Charge correlations in the magnetoresistive oxide La0.7Ca0.3MnO3 (invited) journal, June 2001

Magnons in ferromagnetic metallic manganites journal, July 2007

Indications of Intrinsic Chemical and Structural Inhomogeneity in Lightly Doped La 1 − x Sr x MnO 3 journal, May 2002

Charge Ordering and Polaron Formation in the Magnetoresistive Oxide La 0.7 Ca 0.3 MnO 3 journal, October 2000

Double-Focusing Thermal Triple-Axis Spectrometer at the NCNR journal, January 2012

Unconventional Ferromagnetic Transition in La 1 − x Ca x MnO 3 journal, May 1996

Thousandfold Change in Resistivity in Magnetoresistive La-Ca-Mn-O Films journal, April 1994

Softening and Broadening of the Zone Boundary Magnons in Pr 0.63 Sr 0.37 MnO 3 journal, February 1998

Confined Spin Waves Reveal an Assembly of Nanosize Domains in Ferromagnetic L a 1 − x C a x M n O 3 ( x = 0.17 , 0.2 ) journal, February 2005

Colossal magnetoresistant materials: the key role of phase separation journal, April 2001

Phase Separation Scenario for Manganese Oxides and Related Materials journal, March 1999

Polaron-mediated spin correlations in metallic and insulating La 1 − x A x MnO 3 ( A = Ca , Sr , or Ba ) journal, December 2014

First-order nature of the ferromagnetic phase transition in ( La ‐ Ca ) Mn O 3 near optimal doping journal, October 2004

Short-Range Polaron Correlations in the Ferromagnetic La 1 − x Ca x MnO 3 journal, September 2000

Percolative phase separation underlies colossal magnetoresistance in mixed-valent manganites journal, June 1999

Structure and spin dynamics of La 0.85 Sr 0.15 MnO 3 journal, December 1998

Paramagnetic spin correlations in colossal magnetoresistive La 0.7 Ca 0.3 MnO 3 journal, April 2012

Theory of Colossal Magnetoresistance in R 1 − x A x MnO 3 journal, September 1997

Order and dynamics of intrinsic nanoscale inhomogeneities in manganites journal, July 2007

Liquidlike Spatial Distribution of Magnetic Droplets Revealed by Neutron Scattering in La 1 − x Ca x MnO 3 journal, August 1998

Evolution of the Low-Frequency Spin Dynamics in Ferromagnetic Manganites journal, May 1998

Spin dynamics in the cubic Heisenberg ferromagnet EuS journal, December 1984

Magnon damping by magnon-phonon coupling in manganese perovskites journal, April 2000

Design and operation of the wide angular-range chopper spectrometer ARCS at the Spallation Neutron Source journal, January 2012

Polaronic metal phases in L a 0.7 S r 0.3 Mn O 3 uncovered by inelastic neutron and x-ray scattering journal, January 2016

Energy Width of Spin Waves in the Heisenberg Ferromagnet journal, November 1968

Floating zone growth and properties of La1−xAxMnO3 (A=Ca,Sr) single crystals journal, April 2002

Polaron formation in the optimally doped ferromagnetic manganites La 0.7 Sr 0.3 MnO 3 and La 0.7 Ba 0.3 MnO 3 journal, December 2008

Large lattice distortions associated with the magnetic transition in La 0.7 Sr 0.3 MnO 3 journal, December 2013

Spatially Inhomogeneous Metal-Insulator Transition in Doped Manganites journal, September 1999

Evidence for magnetic polarons in the magnetoresistive perovskites journal, March 1997

Spin waves throughout the Brillouin zone and magnetic exchange coupling in the ferromagnetic metallic manganites La 1 − x Ca x Mn O 3 ( x = 0.25 , 0.30 ) journal, April 2007

Disorder effect on spin excitation in double-exchange systems journal, January 2005

Spin dynamics in La1−xSrxMnO3 journal, December 1997

Cation disorder and size effects in magnetoresistive manganese oxide perovskites journal, December 1996

Magnons in Ferromagnetic Metallic Manganites journal, December 2007

Energy Width of Spin Waves in the Heisenberg Ferromagnet journal, August 1969

Jahn-Teller Phonon Anomaly and Dynamic Phase Fluctuations in La0.7Ca0.3MnO3 text, January 2001

New Correlated Model of Colossal Magnetoresistive Manganese Oxides text, January 2009

Short-range polaron correlations in the ferromagnetic La(1-x)Ca(x)MnO(3) text, January 2000

Magnon softening and damping in the ferromagnetic manganites due to orbital correlations text, January 2001

Evolution of spin-wave excitations in ferromagnetic metallic manganites text, January 2005

Unconventional Ferromagnetic Transition in La1-xCaxMnO3 text, January 1996

Magnon Damping by magnon-phonon coupling in Manganese Perovskites text, January 1999

Title: Spin wave damping arising from phase coexistence below $T_{c}$ in colossal magnetoresistive ${La}_{0.7} {Ca}_{0.3} {MnO}_{3}$

Spin waves and phonons in the CMR ferromagnet La0.70Ca0.30MnO3
journal, November 2006

Spin Wave Theory of Double Exchange Ferromagnets
journal, April 2000

Magnon softening and damping in the ferromagnetic manganites due to orbital correlations
journal, May 2004

Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides
journal, September 1976

Nanoscale Phase Separation and Colossal Magnetoresistance
book, January 2003

Spin waves in the ferromagnetic metallic manganites ${La}_{1 - x} {({Ca}_{1 - y} {Sr}_{y})}_{x} Mn O_{3}$
journal, August 2007

Phenomenological model of anomalous magnon softening and damping in half-metallic manganites
journal, September 2013

Structural effects on the magnetic and transport properties of perovskite $A_{1 - x} A_{x}^{'} {MnO}_{3}$ ( $x = 0.25,$ 0.30)
journal, October 1997

Jahn-Teller Phonon Anomaly and Dynamic Phase Fluctuations in ${La}_{0.7} {Ca}_{0.3} {MnO}_{3}$
journal, April 2001

Charge localization in disordered colossal-magnetoresistance manganites
journal, August 1997

Evolution of Spin-Wave Excitations in Ferromagnetic Metallic Manganites
journal, January 2006

Neutron Diffraction Study of the Magnetic Properties of the Series of Perovskite-Type Compounds $[(1 - x) La, x Ca] Mn O_{3}$
journal, October 1955

Charge correlations in the magnetoresistive oxide La0.7Ca0.3MnO3 (invited)
journal, June 2001

Magnons in ferromagnetic metallic manganites
journal, July 2007

Indications of Intrinsic Chemical and Structural Inhomogeneity in Lightly Doped ${La}_{1 - x} {Sr}_{x} {MnO}_{3}$
journal, May 2002

Charge Ordering and Polaron Formation in the Magnetoresistive Oxide ${La}_{0.7} {Ca}_{0.3} {MnO}_{3}$
journal, October 2000

Double-Focusing Thermal Triple-Axis Spectrometer at the NCNR
journal, January 2012

Unconventional Ferromagnetic Transition in ${La}_{1 - x} {Ca}_{x} {MnO}_{3}$
journal, May 1996

Thousandfold Change in Resistivity in Magnetoresistive La-Ca-Mn-O Films
journal, April 1994

Softening and Broadening of the Zone Boundary Magnons in $\Pr_{0.63} {Sr}_{0.37} {MnO}_{3}$
journal, February 1998

Confined Spin Waves Reveal an Assembly of Nanosize Domains in Ferromagnetic ${L a}_{1 - x} {C a}_{x} {M n O}_{3}$ ( $x = 0.17, 0.2$ )
journal, February 2005

Colossal magnetoresistant materials: the key role of phase separation
journal, April 2001

Phase Separation Scenario for Manganese Oxides and Related Materials
journal, March 1999

Polaron-mediated spin correlations in metallic and insulating $La_{1 - x} A_{x} {MnO}_{3}$ $(A = Ca, Sr, or Ba)$
journal, December 2014

First-order nature of the ferromagnetic phase transition in $(La ‐ Ca) Mn O_{3}$ near optimal doping
journal, October 2004

Short-Range Polaron Correlations in the Ferromagnetic ${La}_{1 - x} {Ca}_{x} {MnO}_{3}$
journal, September 2000

Percolative phase separation underlies colossal magnetoresistance in mixed-valent manganites
journal, June 1999

Structure and spin dynamics of ${La}_{0.85} {Sr}_{0.15} {MnO}_{3}$
journal, December 1998

Paramagnetic spin correlations in colossal magnetoresistive La $_{0.7}$ Ca $_{0.3}$ MnO $_{3}$
journal, April 2012

Theory of Colossal Magnetoresistance in $R_{1 - x} A_{x} {MnO}_{3}$
journal, September 1997

Order and dynamics of intrinsic nanoscale inhomogeneities in manganites
journal, July 2007

Liquidlike Spatial Distribution of Magnetic Droplets Revealed by Neutron Scattering in ${La}_{1 - x} {Ca}_{x} {MnO}_{3}$
journal, August 1998

Evolution of the Low-Frequency Spin Dynamics in Ferromagnetic Manganites
journal, May 1998

Spin dynamics in the cubic Heisenberg ferromagnet EuS
journal, December 1984

Magnon damping by magnon-phonon coupling in manganese perovskites
journal, April 2000

Design and operation of the wide angular-range chopper spectrometer ARCS at the Spallation Neutron Source
journal, January 2012

Polaronic metal phases in $L a_{0.7} S r_{0.3} Mn O_{3}$ uncovered by inelastic neutron and x-ray scattering
journal, January 2016

Energy Width of Spin Waves in the Heisenberg Ferromagnet
journal, November 1968

Floating zone growth and properties of La1−xAxMnO3 (A=Ca,Sr) single crystals
journal, April 2002

Polaron formation in the optimally doped ferromagnetic manganites ${La}_{0.7} {Sr}_{0.3} {MnO}_{3}$ and ${La}_{0.7} {Ba}_{0.3} {MnO}_{3}$
journal, December 2008

Large lattice distortions associated with the magnetic transition in La $_{0.7}$ Sr $_{0.3}$ MnO $_{3}$
journal, December 2013

Spatially Inhomogeneous Metal-Insulator Transition in Doped Manganites
journal, September 1999

Evidence for magnetic polarons in the magnetoresistive perovskites
journal, March 1997

Spin waves throughout the Brillouin zone and magnetic exchange coupling in the ferromagnetic metallic manganites ${La}_{1 - x} {Ca}_{x} Mn O_{3}$ $(x = 0.25, 0.30)$
journal, April 2007

Disorder effect on spin excitation in double-exchange systems
journal, January 2005

Spin dynamics in La1−xSrxMnO3
journal, December 1997

Cation disorder and size effects in magnetoresistive manganese oxide perovskites
journal, December 1996

Magnons in Ferromagnetic Metallic Manganites
journal, December 2007

Energy Width of Spin Waves in the Heisenberg Ferromagnet
journal, August 1969

Jahn-Teller Phonon Anomaly and Dynamic Phase Fluctuations in La0.7Ca0.3MnO3
text, January 2001

New Correlated Model of Colossal Magnetoresistive Manganese Oxides
text, January 2009

Short-range polaron correlations in the ferromagnetic La(1-x)Ca(x)MnO(3)
text, January 2000

Magnon softening and damping in the ferromagnetic manganites due to orbital correlations
text, January 2001

Evolution of spin-wave excitations in ferromagnetic metallic manganites
text, January 2005

Unconventional Ferromagnetic Transition in La1-xCaxMnO3
text, January 1996

Magnon Damping by magnon-phonon coupling in Manganese Perovskites
text, January 1999