U.S. Department of EnergyOffice of Scientific and Technical Information
Colossal terahertz magnetoresistance at room temperature in epitaxial La0.7Sr0.3MnO3 nanocomposites and single-phase thin films
Abstract
Colossal magnetoresistance (CMR) is demonstrated at terahertz (THz) frequencies by using terahertz time-domain magnetospectroscopy to examine vertically aligned nanocomposites (VANs) and planar thin films of La0.7Sr0.3MnO3. At the Curie temperature (room temperature), the THz conductivity of the VAN was dramatically enhanced by over 2 orders of magnitude under the application of a magnetic field with a non-Drude THz conductivity that increased with frequency. The direct current (dc) CMR of the VAN is controlled by extrinsic magnetotransport mechanisms such as spin-polarized tunneling between nanograins. In contrast, we find that THz CMR is dominated by intrinsic, intragrain transport: the mean free path was smaller than the nanocolumn size, and the planar thin-film exhibited similar THz CMR to the VAN. Surprisingly, the observed colossal THz magnetoresistance suggests that the magnetoresistance can be large for alternating current motion on nanometer length scales, even when the magnetoresistance is negligible on the macroscopic length scales probed by dc transport. This suggests that colossal magnetoresistance at THz frequencies may find use in nanoelectronics and in THz optical components controlled by magnetic fields. As a result, the VAN can be scaled in thickness while retaining a high structural quality and offers a larger THz CMR at room temperaturemore »
- Authors:
-
[1];
[3];
- Univ. of Warwick, Coventry (United Kingdom)
- Univ. of Oxford, Oxford (United Kingdom)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. at Buffalo, Buffalo, NY (United States)
- Univ. of Cambridge, Cambridge (United Kingdom)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Laboratory Directed Research and Development (LDRD) Program
- OSTI Identifier:
- 1364556
- Report Number(s):
- LA-UR-17-22535
Journal ID: ISSN 1530-6984
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Nano Letters
- Additional Journal Information:
- Journal Volume: 17; Journal Issue: 4; Journal ID: ISSN 1530-6984
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; Material Science
Citation Formats
Lloyd-Hughes, James, Mosley, C. D. W., Jones, S. P. P., Lees, M. R., Chen, Aiping, Jia, Quan Xi, Choi, E. -M., and MacManus-Driscoll, J. L. Colossal terahertz magnetoresistance at room temperature in epitaxial La0.7Sr0.3MnO3 nanocomposites and single-phase thin films. United States: N. p., 2017.
Web. doi:10.1021/acs.nanolett.7b00231.
Lloyd-Hughes, James, Mosley, C. D. W., Jones, S. P. P., Lees, M. R., Chen, Aiping, Jia, Quan Xi, Choi, E. -M., & MacManus-Driscoll, J. L. Colossal terahertz magnetoresistance at room temperature in epitaxial La0.7Sr0.3MnO3 nanocomposites and single-phase thin films. United States. https://doi.org/10.1021/acs.nanolett.7b00231
Lloyd-Hughes, James, Mosley, C. D. W., Jones, S. P. P., Lees, M. R., Chen, Aiping, Jia, Quan Xi, Choi, E. -M., and MacManus-Driscoll, J. L. 2017.
"Colossal terahertz magnetoresistance at room temperature in epitaxial La0.7Sr0.3MnO3 nanocomposites and single-phase thin films". United States. https://doi.org/10.1021/acs.nanolett.7b00231. https://www.osti.gov/servlets/purl/1364556.
@article{osti_1364556,
title = {Colossal terahertz magnetoresistance at room temperature in epitaxial La0.7Sr0.3MnO3 nanocomposites and single-phase thin films},
author = {Lloyd-Hughes, James and Mosley, C. D. W. and Jones, S. P. P. and Lees, M. R. and Chen, Aiping and Jia, Quan Xi and Choi, E. -M. and MacManus-Driscoll, J. L.},
abstractNote = {Colossal magnetoresistance (CMR) is demonstrated at terahertz (THz) frequencies by using terahertz time-domain magnetospectroscopy to examine vertically aligned nanocomposites (VANs) and planar thin films of La0.7Sr0.3MnO3. At the Curie temperature (room temperature), the THz conductivity of the VAN was dramatically enhanced by over 2 orders of magnitude under the application of a magnetic field with a non-Drude THz conductivity that increased with frequency. The direct current (dc) CMR of the VAN is controlled by extrinsic magnetotransport mechanisms such as spin-polarized tunneling between nanograins. In contrast, we find that THz CMR is dominated by intrinsic, intragrain transport: the mean free path was smaller than the nanocolumn size, and the planar thin-film exhibited similar THz CMR to the VAN. Surprisingly, the observed colossal THz magnetoresistance suggests that the magnetoresistance can be large for alternating current motion on nanometer length scales, even when the magnetoresistance is negligible on the macroscopic length scales probed by dc transport. This suggests that colossal magnetoresistance at THz frequencies may find use in nanoelectronics and in THz optical components controlled by magnetic fields. As a result, the VAN can be scaled in thickness while retaining a high structural quality and offers a larger THz CMR at room temperature than the planar film.},
doi = {10.1021/acs.nanolett.7b00231},
url = {https://www.osti.gov/biblio/1364556},
journal = {Nano Letters},
issn = {1530-6984},
number = 4,
volume = 17,
place = {United States},
year = {Mon Mar 13 00:00:00 EDT 2017},
month = {Mon Mar 13 00:00:00 EDT 2017}
}
Free Publicly Available Full Text
Publisher's Version of Record
Other availability
Search WorldCat to find libraries that may hold this journal
Cited by: 18 works
Citation information provided by
Web of Science
Web of Science
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Extrinsic magnetotransport phenomena in ferromagnetic oxides
journal, January 2002
- Ziese, M.
- Reports on Progress in Physics, Vol. 65, Issue 2
Direct evidence for a half-metallic ferromagnet
journal, April 1998
- Park, J. -H.; Vescovo, E.; Kim, H. -J.
- Nature, Vol. 392, Issue 6678
Low field magnetotransport properties of (La0.7Sr0.3MnO3)0.5:(ZnO)0.5 nanocomposite films
journal, May 2006
- Kang, B. S.; Wang, H.; MacManus-Driscoll, J. L.
- Applied Physics Letters, Vol. 88, Issue 19
Low field magnetotransport in manganites
journal, June 2008
- Siwach, P. K.; Singh, H. K.; Srivastava, O. N.
- Journal of Physics: Condensed Matter, Vol. 20, Issue 27
Excellent low field magnetoresistance properties of the La0.7Sr0.3Mn1+dO3-manganese oxide composites
journal, August 2009
- Kang, Young-Min; Kim, Hyo-Jin; Yoo, Sang-Im
- Applied Physics Letters, Vol. 95, Issue 5
Self-Assembled Heteroepitaxial Oxide Nanocomposite Thin Film Structures: Designing Interface-Induced Functionality in Electronic Materials
journal, June 2010
- MacManus-Driscoll, Judith L.
- Advanced Functional Materials, Vol. 20, Issue 13
Microstructural and magnetic properties of (La 0.7 Sr 0.3 MnO 3 ) 0.7 :(Mn 3 O 4 ) 0.3 nanocomposite thin films
journal, March 2011
- Bi, Zhenxing; Weal, Emily; Luo, Hongmei
- Journal of Applied Physics, Vol. 109, Issue 5
Composite epitaxial thin films: A new platform for tuning, probing, and exploiting mesoscale oxides
journal, November 2015
- MacManus-Driscoll, J. L.; Suwardi, A.; Wang, H.
- MRS Bulletin, Vol. 40, Issue 11
Tunable Low-Field Magnetoresistance in (La0.7Sr0.3MnO3)0.5:(ZnO)0.5 Self-Assembled Vertically Aligned Nanocomposite Thin Films
journal, April 2011
- Chen, Aiping; Bi, Zhenxing; Tsai, Chen-Fong
- Advanced Functional Materials, Vol. 21, Issue 13
Terahertz spectroscopy of quantum 2D electron systems
journal, August 2014
- Lloyd-Hughes, James
- Journal of Physics D: Applied Physics, Vol. 47, Issue 37
Interfacial and bulk polaron masses in Zn 1− x Mg x O/ZnO heterostructures examined by terahertz time-domain cyclotron spectroscopy
journal, May 2015
- Lloyd-Hughes, J.; Failla, M.; Ye, J.
- Applied Physics Letters, Vol. 106, Issue 20
Narrow heavy-hole cyclotron resonances split by the cubic Rashba spin-orbit interaction in strained germanium quantum wells
journal, July 2015
- Failla, M.; Myronov, M.; Morrison, C.
- Physical Review B, Vol. 92, Issue 4
Accessing the fundamentals of magnetotransport in metals with terahertz probes
journal, July 2015
- Jin, Zuanming; Tkach, Alexander; Casper, Frederick
- Nature Physics, Vol. 11, Issue 9
Colossal magneto-optical conductivity in doped manganites
journal, September 1999
- Alexandrov, A. S.; Bratkovsky, A. M.
- Physical Review B, Vol. 60, Issue 9
The essential interactions in oxides and spectral weight transfer in doped manganites
journal, November 1999
- Alexandrov, A. S.; Bratkovsky, A. M.
- Journal of Physics: Condensed Matter, Vol. 11, Issue 48
Anomalous Variation of Optical Spectra with Spin Polarization in Double-Exchange Ferromagnet:
journal, July 1995
- Okimoto, Y.; Katsufuji, T.; Ishikawa, T.
- Physical Review Letters, Vol. 75, Issue 1
Variation of electronic structure in f(0⩽x⩽0.3) as investigated by optical conductivity spectra
journal, February 1997
- Okimoto, Y.; Katsufuji, T.; Ishikawa, T.
- Physical Review B, Vol. 55, Issue 7
Ultrafast Conductivity Dynamics in Colossal Magnetoresistance Manganites
journal, June 2001
- Averitt, R. D.; Lobad, A. I.; Kwon, C.
- Physical Review Letters, Vol. 87, Issue 1
Ultrafast optical and far-infrared quasiparticle dynamics in correlated electron materials
journal, December 2002
- Averitt, R. D.; Taylor, A. J.
- Journal of Physics: Condensed Matter, Vol. 14, Issue 50
Modifying the polarization state of terahertz radiation using anisotropic twin-domains in LaAlO_3
journal, January 2014
- Lloyd-Hughes, J.; Jones, S. P. P.; Castro-Camus, E.
- Optics Letters, Vol. 39, Issue 5
A Review of the Terahertz Conductivity of Bulk and Nano-Materials
journal, May 2012
- Lloyd-Hughes, James; Jeon, Tae-In
- Journal of Infrared, Millimeter, and Terahertz Waves, Vol. 33, Issue 9
Transport‐magnetism correlations in the ferromagnetic oxide La 0.7 Ca 0.3 MnO 3
journal, August 1995
- Hundley, M. F.; Hawley, M.; Heffner, R. H.
- Applied Physics Letters, Vol. 67, Issue 6
Terahertz transmission characteristics of high-mobility GaAs and InAs two-dimensional-electron-gas systems
journal, September 2006
- Kabir, N. A.; Yoon, Y.; Knab, J. R.
- Applied Physics Letters, Vol. 89, Issue 13
A.c. conduction in amorphous chalcogenide and pnictide semiconductors
journal, January 1987
- Elliott, S. R.
- Advances in Physics, Vol. 36, Issue 2
Transient Terahertz Conductivity of GaAs Nanowires
journal, July 2007
- Parkinson, Patrick; Lloyd-Hughes, James; Gao, Qiang
- Nano Letters, Vol. 7, Issue 7
Theory of Insulator Metal Transition and Colossal Magnetoresistance in Doped Manganites
journal, April 2004
- Ramakrishnan, T. V.; Krishnamurthy, H. R.; Hassan, S. R.
- Physical Review Letters, Vol. 92, Issue 15
Carrier Density Collapse and Colossal Magnetoresistance in Doped Manganites
journal, January 1999
- Alexandrov, A. S.; Bratkovsky, A. M.
- Physical Review Letters, Vol. 82, Issue 1
Optical conductivity of manganites: Crossover from Jahn-Teller small polaron to coherent transport in the ferromagnetic state
journal, December 1998
- Quijada, M.; Černe, J.; Simpson, J. R.
- Physical Review B, Vol. 58, Issue 24
Optical properties of small polarons from dynamical mean-field theory
journal, August 2006
- Fratini, S.; Ciuchi, S.
- Physical Review B, Vol. 74, Issue 7
Direct Imaging of Nanoscale Phase Separation in : Relationship to Colossal Magnetoresistance
journal, August 2009
- Tao, J.; Niebieskikwiat, D.; Varela, M.
- Physical Review Letters, Vol. 103, Issue 9
Possible evidence for electromagnons in multiferroic manganites
journal, January 2006
- Pimenov, A.; Mukhin, A. A.; Ivanov, V. Yu.
- Nature Physics, Vol. 2, Issue 2
High-temperature electromagnons in the magnetically induced multiferroic cupric oxide driven by intersublattice exchange
journal, April 2014
- Jones, S. P. P.; Gaw, S. M.; Doig, K. I.
- Nature Communications, Vol. 5, Issue 1
Low-energy collective dynamics of charge stripes in the doped nickelate observed with optical conductivity measurements
journal, May 2008
- Lloyd-Hughes, J.; Prabhakaran, D.; Boothroyd, A. T.
- Physical Review B, Vol. 77, Issue 19
Works referencing / citing this record:
Giant positive magnetoresistance in half-metallic double-perovskite Sr 2 CrWO 6 thin films
journal, November 2017
- Zhang, Ji; Ji, Wei-Jing; Xu, Jie
- Science Advances, Vol. 3, Issue 11
Metal Oxide Nanocomposites: A Perspective from Strain, Defect, and Interface
journal, October 2018
- Chen, Aiping; Su, Qing; Han, Hyungkyu
- Advanced Materials, Vol. 31, Issue 4
Interfacial polarizations induced by incorporating traditional perovskites into reduced graphene oxide (RGO) for strong microwave response
journal, January 2019
- Dai, Sisi; Quan, Bin; Zhang, Baoshan
- Dalton Transactions, Vol. 48, Issue 7
Broadband microwave absorber constructed by reduced graphene oxide/La 0.7 Sr 0.3 MnO 3 composites
journal, January 2019
- Yan, Kelan; Yin, Feng; Pang, Chao
- RSC Advances, Vol. 9, Issue 71