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Title: Impact of nanostructuring on the magnetic and magnetocaloric properties of microscale phase-separated La5/8–yPryCa3/8MnO₃ manganites

Abstract

Bulk manganites of the form La5/8–yPryCa3/8MnO₃ (LPCMO) exhibit a complex phase diagram due to coexisting charge-ordered antiferromagnetic (CO/AFM), charge-disordered paramagnetic (PM), and ferromagnetic (FM) phases. Because phase separation in LPCMO occurs on the microscale, reducing particle size to below this characteristic length is expected to have a strong impact on the magnetic properties of the system. Through a comparative study of the magnetic and magnetocaloric properties of single-crystalline (bulk) and nanocrystalline LPCMO (y=3/8) we show that the AFM, CO, and FM transitions seen in the single crystal can also be observed in the large particle sizes (400 and 150 nm), while only a single PM to FM transition is found for the small particles (55 nm). Magnetic and magnetocaloric measurements reveal that decreasing particle size affects the balance of competing phases in LPCMO and narrows the range of fields over which PM, FM, and CO phases coexist. The FM volume fraction increases with size reduction, until CO is suppressed below some critical size, ~100 nm. With size reduction, the saturation magnetization and field sensitivity first increase as long-range CO is inhibited, then decrease as surface effects become increasingly important. The trend that the FM phase is stabilized on the nanoscalemore » is contrasted with the stabilization of the charge-disordered PM phase occurring on the microscale, demonstrating that in terms of the characteristic phase separation length, a few microns and several hundred nanometers represent very different regimes in LPCMO.« less

Authors:
; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1103129
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Volume: 86 Journal Issue: 6; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Bingham, N. S., Lampen, P., Phan, M. H., Hoang, T. D., Chinh, H. D., Zhang, C. L., Cheong, S. W., and Srikanth, H. Impact of nanostructuring on the magnetic and magnetocaloric properties of microscale phase-separated La5/8–yPryCa3/8MnO₃ manganites. United States: N. p., 2012. Web. doi:10.1103/PhysRevB.86.064420.
Bingham, N. S., Lampen, P., Phan, M. H., Hoang, T. D., Chinh, H. D., Zhang, C. L., Cheong, S. W., & Srikanth, H. Impact of nanostructuring on the magnetic and magnetocaloric properties of microscale phase-separated La5/8–yPryCa3/8MnO₃ manganites. United States. doi:10.1103/PhysRevB.86.064420.
Bingham, N. S., Lampen, P., Phan, M. H., Hoang, T. D., Chinh, H. D., Zhang, C. L., Cheong, S. W., and Srikanth, H. Thu . "Impact of nanostructuring on the magnetic and magnetocaloric properties of microscale phase-separated La5/8–yPryCa3/8MnO₃ manganites". United States. doi:10.1103/PhysRevB.86.064420.
@article{osti_1103129,
title = {Impact of nanostructuring on the magnetic and magnetocaloric properties of microscale phase-separated La5/8–yPryCa3/8MnO₃ manganites},
author = {Bingham, N. S. and Lampen, P. and Phan, M. H. and Hoang, T. D. and Chinh, H. D. and Zhang, C. L. and Cheong, S. W. and Srikanth, H.},
abstractNote = {Bulk manganites of the form La5/8–yPryCa3/8MnO₃ (LPCMO) exhibit a complex phase diagram due to coexisting charge-ordered antiferromagnetic (CO/AFM), charge-disordered paramagnetic (PM), and ferromagnetic (FM) phases. Because phase separation in LPCMO occurs on the microscale, reducing particle size to below this characteristic length is expected to have a strong impact on the magnetic properties of the system. Through a comparative study of the magnetic and magnetocaloric properties of single-crystalline (bulk) and nanocrystalline LPCMO (y=3/8) we show that the AFM, CO, and FM transitions seen in the single crystal can also be observed in the large particle sizes (400 and 150 nm), while only a single PM to FM transition is found for the small particles (55 nm). Magnetic and magnetocaloric measurements reveal that decreasing particle size affects the balance of competing phases in LPCMO and narrows the range of fields over which PM, FM, and CO phases coexist. The FM volume fraction increases with size reduction, until CO is suppressed below some critical size, ~100 nm. With size reduction, the saturation magnetization and field sensitivity first increase as long-range CO is inhibited, then decrease as surface effects become increasingly important. The trend that the FM phase is stabilized on the nanoscale is contrasted with the stabilization of the charge-disordered PM phase occurring on the microscale, demonstrating that in terms of the characteristic phase separation length, a few microns and several hundred nanometers represent very different regimes in LPCMO.},
doi = {10.1103/PhysRevB.86.064420},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 6,
volume = 86,
place = {United States},
year = {2012},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
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DOI: 10.1103/PhysRevB.86.064420

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Cited by: 24 works
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Works referenced in this record:

Collapse of a Charge-Ordered State under a Magnetic Field in Pr 1 / 2 Sr 1 / 2 MnO 3
journal, June 1995


Some structures topologically related to cubic perovskite ( E 2 1 ), ReO 3 ( D 0 9 ) and Cu 3 Au ( L 1 2 )
journal, December 1977

  • O'Keeffe, M.; Hyde, B. G.
  • Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, Vol. 33, Issue 12
  • DOI: 10.1107/S0567740877012114

Review of the magnetocaloric effect in manganite materials
journal, January 2007


Colossal magnetocapacitance and scale-invariant dielectric response in phase-separated manganites
journal, May 2007

  • Rairigh, Ryan P.; Singh-Bhalla, Guneeta; Tongay, Sefaatin
  • Nature Physics, Vol. 3, Issue 8
  • DOI: 10.1038/nphys626

Thermal and Electronic Transport Properties and Two-Phase Mixtures in La 5 / 8 x Pr x Ca 3 / 8 MnO 3
journal, March 2000


Large magnetocaloric effect in Sm0.52Sr0.48MnO3 in low magnetic field
journal, May 2008

  • Sarkar, P.; Mandal, P.; Choudhury, P.
  • Applied Physics Letters, Vol. 92, Issue 18
  • DOI: 10.1063/1.2919732

Tunneling magnetoresistance in phase-separated manganite nanobridges
journal, October 2009


Giant positive magnetoresistance in ultrathin films of mixed phase manganites
journal, April 2008

  • Yun, Sung H.; Dhakal, Tara; Goswami, Devesh
  • Journal of Applied Physics, Vol. 103, Issue 7
  • DOI: 10.1063/1.2837277

Magnetocaloric effect in manganites: Metamagnetic transitions for magnetic refrigeration
journal, September 2010

  • Quintero, M.; Sacanell, J.; Ghivelder, L.
  • Applied Physics Letters, Vol. 97, Issue 12
  • DOI: 10.1063/1.3491175

Competing Ferromagnetic and Charge-Ordered States in Models for Manganites: The Origin of the Colossal Magnetoresistance Effect
journal, March 2007


Charge-order breaking and ferromagnetism in La0.4Ca0.6MnO3 nanoparticles
journal, July 2007

  • Lu, C. L.; Dong, S.; Wang, K. F.
  • Applied Physics Letters, Vol. 91, Issue 3
  • DOI: 10.1063/1.2753749

Strain-induced metal–insulator phase coexistence in perovskite manganites
journal, March 2004


Magnetic imaging of a supercooling glass transition in a weakly disordered ferromagnet
journal, October 2006

  • Wu, Weida; Israel, Casey; Hur, Namjung
  • Nature Materials, Vol. 5, Issue 11
  • DOI: 10.1038/nmat1743

Size-driven magnetic transitions in La1/3Ca2/3MnO3 nanoparticles
journal, September 2010

  • Markovich, V.; Fita, I.; Wisniewski, A.
  • Journal of Applied Physics, Vol. 108, Issue 6
  • DOI: 10.1063/1.3488619

Influence of different substrates on phase separation in La1−x−yPryCaxMnO3 thin films
journal, April 2006

  • Gillaspie, Dane; Ma, J. X.; Zhai, Hong-Ying
  • Journal of Applied Physics, Vol. 99, Issue 8
  • DOI: 10.1063/1.2162050

Intrinsic Tunneling in Phase Separated Manganites
journal, February 2009


Reemergent Metal-Insulator Transitions in Manganites Exposed with Spatial Confinement
journal, June 2008


Magnetic relaxation in La 0.250 Pr 0.375 Ca 0.375 MnO 3 with varying phase separation
journal, May 2002


Size induced arrest of the room temperature crystallographic structure in nanoparticles of La0.5Ca0.5MnO3
journal, March 2008

  • Sarkar, Tapati; Raychaudhuri, A. K.; Chatterji, Tapan
  • Applied Physics Letters, Vol. 92, Issue 12
  • DOI: 10.1063/1.2902317

Phase-segregated glass formation linked to freezing of structural interface motion
journal, October 2008


Colossal piezoresistance in phase separated manganites
journal, April 2009


Competing two-phase coexistence in doped manganites: Direct observations by in situ Lorentz electron microscopy
journal, December 2010


Effect of strain and electric field on the electronic soft matter in manganite thin films
journal, March 2007


Multiphase segregation and metal-insulator transition in single crystal La 5 / 8 y Pr y Ca 3 / 8 MnO 3
journal, December 2000


Complex magnetic phases in
journal, February 2010


Ferromagnetism induced by hydrogen in polycrystalline nonmagnetic Zn0.95Co0.05O
journal, July 2006

  • Deka, Sasanka; Joy, P. A.
  • Applied Physics Letters, Vol. 89, Issue 3
  • DOI: 10.1063/1.2227642

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

Room Temperature Structural and Microstructural Study for the Magneto-Conducting La 5/8 - x Pr x Ca 3/ 8 MnO 3 (0⩽ x ⩽ 5/8) Series
journal, January 2003

  • Collado, J. A.; Frontera, C.; García-Muñoz, J. L.
  • Chemistry of Materials, Vol. 15, Issue 1
  • DOI: 10.1021/cm020776u

Optical evidence of multiphase coexistence in single crystalline ( L a , P r , C a ) MnO 3
journal, March 2002


Enhanced magnetic refrigeration capacity in phase separated manganites
journal, August 2009

  • Lima Sharma, A. L.; Sharma, P. A.; McCall, S. K.
  • Applied Physics Letters, Vol. 95, Issue 9
  • DOI: 10.1063/1.3204694

Charge-ordering contribution to the magnetic entropy change of <mml:math altimg="si8.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mo stretchy="false">(</mml:mo><mml:mi>Pr</mml:mi><mml:mo>,</mml:mo><mml:mi>Ca</mml:mi><mml:mo stretchy="false">)</mml:mo><mml:msub><mml:mrow><mml:mi>MnO</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:math> manganites
journal, April 2005

  • Reis, M. S.; Gomes, A. M.; Araújo, J. P.
  • Journal of Magnetism and Magnetic Materials, Vol. 290-291
  • DOI: 10.1016/j.jmmm.2004.11.340

Raman scattering studies of the temperature- and field-induced melting of charge order in La x Pr y Ca 1 x y MnO 3
journal, April 2008


Observation of large low field magnetoresistance and large magnetocaloric effects in polycrystalline Pr[sub 0.65](Ca[sub 0.7]Sr[sub 0.3])[sub 0.35]MnO[sub 3]
journal, January 2008

  • Biswas, Anis; Samanta, Tapas; Banerjee, S.
  • Applied Physics Letters, Vol. 92, Issue 1
  • DOI: 10.1063/1.2828980

Effect of particle size on the structural and magnetic properties of La0.8Sr0.2MnO3
journal, September 2006

  • Kameli, P.; Salamati, H.; Aezami, A.
  • Journal of Applied Physics, Vol. 100, Issue 5
  • DOI: 10.1063/1.2345036

Effect of crystal size reduction on lattice symmetry and cooperative properties
journal, March 1995


Reentrant charge ordering transition in the manganites as experimental evidence for a strain glass
journal, June 2005


Phase coexistence and magnetocaloric effect in La 5 / 8 y Pr y Ca 3 / 8 MnO 3 ( y = 0.275 )
journal, March 2010


Electronic phase separation and other novel phenomena and properties exhibited by mixed-valent rare-earth manganites and related materials
journal, September 2007

  • Shenoy, Vijay B.; Rao, C. N. R.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 366, Issue 1862
  • DOI: 10.1098/rsta.2007.2140

Size-induced ferromagnetism and metallicity in Nd0.5Sr0.5MnO3 nanoparticles: A neutron diffraction study
journal, March 2012


Dynamic phase separation in La 5 8 y Pr y Ca 3 8 Mn O 3
journal, May 2005


Large Magnetic Entropy Change in Perovskite-Type Manganese Oxides
journal, February 1997


Relevance of Cooperative Lattice Effects and Stress Fields in Phase-Separation Theories for CMR Manganites
journal, March 2004


Martensitic accommodation strain and the metal-insulator transition in manganites
journal, September 2001


Elastically driven anisotropic percolation in electronic phase-separated manganites
journal, October 2009

  • Ward, T. Z.; Budai, J. D.; Gai, Z.
  • Nature Physics, Vol. 5, Issue 12
  • DOI: 10.1038/nphys1419

Reversible colossal resistance switching in (La,Pr,Ca)MnO3: Cryogenic nonvolatile memories
journal, August 2009

  • Yi, H. T.; Choi, T.; Cheong, S. -W.
  • Applied Physics Letters, Vol. 95, Issue 6
  • DOI: 10.1063/1.3204690

Colossal magnetoresistive manganites
journal, October 1999


Crystal structure and physical properties of half-doped manganite nanocrystals of less than 100-nm size
journal, June 2008


Size effect on the magnetic properties of antiferromagnetic La 0.2 Ca 0.8 MnO 3 nanoparticles
journal, March 2010


Size induced variations in structural and magnetic properties of double exchange La0.8Sr0.2MnO3−δ nano-ferromagnet
journal, July 2004

  • Roy, Sujoy; Dubenko, Igor; Edorh, Dossah D.
  • Journal of Applied Physics, Vol. 96, Issue 2
  • DOI: 10.1063/1.1760230

Magnetism, conductivity, and orbital order in ( LaMnO 3 ) 2 n / ( SrMnO 3 ) n superlattices
journal, November 2008


Theory of the Role of Covalence in the Perovskite-Type Manganites [ La ,   M ( II ) ] Mn O 3
journal, October 1955


Relaxation between charge order and ferromagnetism in manganites: Indication of structural phase separation
journal, December 2000


Collapse of charge ordering and enhancement of magnetocaloric effect in nanocrystalline La0.35Pr0.275Ca0.375MnO3
journal, December 2010

  • Phan, M. H.; Chandra, S.; Bingham, N. S.
  • Applied Physics Letters, Vol. 97, Issue 24
  • DOI: 10.1063/1.3526380