Decoupling exchange bias and coercivity enhancement in a perovskite oxide exchange spring bilayer
Abstract
© 2019 American Physical Society. A wedge bilayer of epitaxial 4-8 nm La0.7Sr0.3CoO3(LSCO)/6-nm La0.7Sr0.3MnO3(LSMO), hard and soft ferromagnets (FM) respectively, was studied using soft x-ray magnetic spectroscopy to elucidate the interplay between the magnetic and electronic properties of the constituent layers. This system exhibits magnetic and electronic segregation within the LSCO layer characterized by soft FM Co2+ ions at the interface (s-LSCO), which is biased by the underlying hard LSCO layer (h-LSCO), characterized by predominantly Co3+/Co4+ FM ions. For a 5.1-nm layer, the interfacial Co2+ ion concentration is maximized and the h-LSCO coercivity is minimized, while the opposite is true for a 7.8-nm LSCO layer. These dual trends in Co2+ ion concentration and h-LSCO coercivity within the LSCO serve to independently affect the exchange bias and coercivity of the soft FM layer, resulting in inverse trends between these properties that typically vary simultaneously.
- Authors:
-
- Univ. of California, Davis, CA (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1503452
- Alternate Identifier(s):
- OSTI ID: 1491944; OSTI ID: 1634041
- Grant/Contract Number:
- SC0014664; AC02-05CH1123; MR-15-328528; AC02-76SF00515; AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Materials
- Additional Journal Information:
- Journal Volume: 3; Journal Issue: 1; Journal ID: ISSN 2475-9953
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Kane, Alexander M., Chopdekar, Rajesh V., N’Diaye, Alpha T., Scholl, Andreas, Arenholz, Elke, Mehta, Apurva, and Takamura, Yayoi. Decoupling exchange bias and coercivity enhancement in a perovskite oxide exchange spring bilayer. United States: N. p., 2019.
Web. doi:10.1103/physrevmaterials.3.014413.
Kane, Alexander M., Chopdekar, Rajesh V., N’Diaye, Alpha T., Scholl, Andreas, Arenholz, Elke, Mehta, Apurva, & Takamura, Yayoi. Decoupling exchange bias and coercivity enhancement in a perovskite oxide exchange spring bilayer. United States. https://doi.org/10.1103/physrevmaterials.3.014413
Kane, Alexander M., Chopdekar, Rajesh V., N’Diaye, Alpha T., Scholl, Andreas, Arenholz, Elke, Mehta, Apurva, and Takamura, Yayoi. Thu .
"Decoupling exchange bias and coercivity enhancement in a perovskite oxide exchange spring bilayer". United States. https://doi.org/10.1103/physrevmaterials.3.014413. https://www.osti.gov/servlets/purl/1503452.
@article{osti_1503452,
title = {Decoupling exchange bias and coercivity enhancement in a perovskite oxide exchange spring bilayer},
author = {Kane, Alexander M. and Chopdekar, Rajesh V. and N’Diaye, Alpha T. and Scholl, Andreas and Arenholz, Elke and Mehta, Apurva and Takamura, Yayoi},
abstractNote = {© 2019 American Physical Society. A wedge bilayer of epitaxial 4-8 nm La0.7Sr0.3CoO3(LSCO)/6-nm La0.7Sr0.3MnO3(LSMO), hard and soft ferromagnets (FM) respectively, was studied using soft x-ray magnetic spectroscopy to elucidate the interplay between the magnetic and electronic properties of the constituent layers. This system exhibits magnetic and electronic segregation within the LSCO layer characterized by soft FM Co2+ ions at the interface (s-LSCO), which is biased by the underlying hard LSCO layer (h-LSCO), characterized by predominantly Co3+/Co4+ FM ions. For a 5.1-nm layer, the interfacial Co2+ ion concentration is maximized and the h-LSCO coercivity is minimized, while the opposite is true for a 7.8-nm LSCO layer. These dual trends in Co2+ ion concentration and h-LSCO coercivity within the LSCO serve to independently affect the exchange bias and coercivity of the soft FM layer, resulting in inverse trends between these properties that typically vary simultaneously.},
doi = {10.1103/physrevmaterials.3.014413},
journal = {Physical Review Materials},
number = 1,
volume = 3,
place = {United States},
year = {Thu Jan 24 00:00:00 EST 2019},
month = {Thu Jan 24 00:00:00 EST 2019}
}
Web of Science
Works referenced in this record:
Antiferromagnetic exchange-bias in epitaxial ferromagnetic La0.67Sr0.33MnO3∕SrRuO3 bilayers
journal, May 2005
- Ke, X.; Belenky, L. J.; Eom, C. B.
- Journal of Applied Physics, Vol. 97, Issue 10
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
Hidden Magnetic Configuration in Epitaxial Films
journal, December 2010
- Lee, J. -S.; Arena, D. A.; Yu, P.
- Physical Review Letters, Vol. 105, Issue 25
Unconventional switching behavior in La 0.7 Sr 0.3 MnO 3 /La 0.7 Sr 0.3 CoO 3 exchange-spring bilayers
journal, November 2014
- Li, Binzhi; Chopdekar, Rajesh V.; Arenholz, Elke
- Applied Physics Letters, Vol. 105, Issue 20
Strain-dependent magnetic phase diagram of epitaxial La0.67Sr0.33MnO3 thin films
journal, April 2000
- Tsui, F.; Smoak, M. C.; Nath, T. K.
- Applied Physics Letters, Vol. 76, Issue 17
Exchange biasing in La2/3Ca1/3MnO3/La1/3Ca2/3MnO3 multilayers
journal, April 1999
- Panagiotopoulos, I.; Christides, C.; Moutis, N.
- Journal of Applied Physics, Vol. 85, Issue 8
Coercivity enhancement in the SrRuO3∕SrMnO3 superlattices
journal, June 2006
- Padhan, P.; Prellier, W.
- Applied Physics Letters, Vol. 88, Issue 26
GenX : an extensible X-ray reflectivity refinement program utilizing differential evolution
journal, November 2007
- Björck, Matts; Andersson, Gabriella
- Journal of Applied Crystallography, Vol. 40, Issue 6
Misfit strain accommodation in epitaxial perovskites: Lattice rotations and lattice modulations
journal, February 2011
- Vailionis, A.; Boschker, H.; Siemons, W.
- Physical Review B, Vol. 83, Issue 6
Reversible electric control of exchange bias in a multiferroic field-effect device
journal, July 2010
- Wu, S. M.; Cybart, Shane A.; Yu, P.
- Nature Materials, Vol. 9, Issue 9
Strain engineering to control the magnetic and magnetotransport properties of La0.67Sr0.33MnO3 thin films
journal, August 2010
- Yang, F.; Kemik, N.; Biegalski, M. D.
- Applied Physics Letters, Vol. 97, Issue 9
Magnetic correlation between La 0.7 Sr 0.3 MnO 3 and La 0.7 Sr 0.3 CoO 3 layers in artificial superlattices
journal, April 2013
- Malik, Vivek K.; Hieu Vo, Chi; Arenholz, Elke
- Journal of Applied Physics, Vol. 113, Issue 15
Coexistence of Superconductivity and Ferromagnetism in Two Dimensions
journal, July 2011
- Dikin, D. A.; Mehta, M.; Bark, C. W.
- Physical Review Letters, Vol. 107, Issue 5, Article No. 056802
Interface Physics in Complex Oxide Heterostructures
journal, March 2011
- Zubko, Pavlo; Gariglio, Stefano; Gabay, Marc
- Annual Review of Condensed Matter Physics, Vol. 2, Issue 1
Exchange anisotropy in coupled films of Ni 81 Fe 19 with NiO and Co x Ni 1− x O
journal, June 1992
- Carey, M. J.; Berkowitz, A. E.
- Applied Physics Letters, Vol. 60, Issue 24
Thickness dependence of magnetic domain formation in La0.6Sr0.4MnO3 epitaxial thin films studied by XMCD–PEEM
journal, October 2007
- Taniuchi, Toshiyuki; Yasuhara, Ryutaro; Kumigashira, Hiroshi
- Surface Science, Vol. 601, Issue 20
Photoemission electron microscope for the study of magnetic materials
journal, October 1999
- Anders, Simone; Padmore, Howard A.; Duarte, Robert M.
- Review of Scientific Instruments, Vol. 70, Issue 10
Strain engineering induced interfacial self-assembly and intrinsic exchange bias in a manganite perovskite film
journal, August 2013
- Cui, B.; Song, C.; Wang, G. Y.
- Scientific Reports, Vol. 3, Issue 1
Critical thickness and orbital ordering in ultrathin films
journal, September 2008
- Huijben, M.; Martin, L. W.; Chu, Y. -H.
- Physical Review B, Vol. 78, Issue 9
Positive exchange bias in ferromagnetic La0.67Sr0.33MnO3∕SrRuO3 bilayers
journal, June 2004
- Ke, X.; Rzchowski, M. S.; Belenky, L. J.
- Applied Physics Letters, Vol. 84, Issue 26
Correlation between epitaxial strain and magnetic properties in La 0.7 Sr 0.3 CoO 3 /La 0.7 Sr 0.3 MnO 3 bilayers
journal, February 2019
- Byers, J. Paige; Li, Binzhi; Chopdekar, Rajesh V.
- Journal of Applied Physics, Vol. 125, Issue 8
Exchange-bias effect at La Sr MnO /LaNiO interfaces
journal, March 2012
- Rojas Sánchez, J. C.; Nelson-Cheeseman, B.; Granada, M.
- Physical Review B, Vol. 85, Issue 9
Nearly total spin polarization in La2/3Sr1/3MnO3 from tunneling experiments
journal, January 2003
- Bowen, M.; Bibes, M.; Barthélémy, A.
- Applied Physics Letters, Vol. 82, Issue 2
Unidirectional anisotropy in nickel-iron films by exchange coupling with antiferromagnetic films
journal, September 1978
- Hempstead, R.; Krongelb, S.; Thompson, D.
- IEEE Transactions on Magnetics, Vol. 14, Issue 5
Intrinsic luminescence excitation spectrum and extended x-ray absorption fine structure above the edge in Ca
journal, February 1978
- Bianconi, A.; Jackson, D.; Monahan, K.
- Physical Review B, Vol. 17, Issue 4
Exchange bias in LaNiO3–LaMnO3 superlattices
journal, January 2012
- Gibert, Marta; Zubko, Pavlo; Scherwitzl, Raoul
- Nature Materials, Vol. 11, Issue 3
Resonant x-ray reflectivity study of perovskite oxide superlattices
journal, November 2011
- Kemik, N.; Gu, M.; Yang, F.
- Applied Physics Letters, Vol. 99, Issue 20
Coercivity Enhancement in Exchange Biased Systems Driven by Interfacial Magnetic Frustration
journal, April 2000
- Leighton, C.; Nogués, J.; Jönsson-Åkerman, B. J.
- Physical Review Letters, Vol. 84, Issue 15
An interpretation of the magnetic properties of the perovskite-type mixed crystals La1−xSrxCoO3−λ
journal, August 1958
- Goodenough, John B.
- Journal of Physics and Chemistry of Solids, Vol. 6, Issue 2-3
A high-mobility electron gas at the LaAlO3/SrTiO3 heterointerface
journal, January 2004
- Ohtomo, A.; Hwang, H. Y.
- Nature, Vol. 427, Issue 6973
Thickness-dependent magnetic and electrical transport properties of epitaxial La 0.7 Sr 0.3 CoO 3 films
journal, April 2017
- Li, Binzhi; Chopdekar, Rajesh V.; Kane, Alexander M.
- AIP Advances, Vol. 7, Issue 4
Structural “ Doping” to Control Local Magnetization in Isovalent Oxide Heterostructures
journal, November 2017
- Moon, E. J.; He, Q.; Ghosh, S.
- Physical Review Letters, Vol. 119, Issue 19
Direct observation of pinned/biased moments in magnetic superlattices
journal, September 2005
- Padhan, P.; Prellier, W.
- Physical Review B, Vol. 72, Issue 10
Glassy ferromagnetism and magnetic phase separation in
journal, May 2003
- Wu, J.; Leighton, C.
- Physical Review B, Vol. 67, Issue 17, Article No. 174408
Insulator-metal transition and giant magnetoresistance in
journal, May 1995
- Urushibara, A.; Moritomo, Y.; Arima, T.
- Physical Review B, Vol. 51, Issue 20
Exchange bias
journal, February 1999
- Nogués, J.; Schuller, Ivan K.
- Journal of Magnetism and Magnetic Materials, Vol. 192, Issue 2
Interface Ferromagnetism and Orbital Reconstruction in Heterostructures
journal, July 2010
- Yu, P.; Lee, J. -S.; Okamoto, S.
- Physical Review Letters, Vol. 105, Issue 2
Tuning interfacial exchange interactions via electronic reconstruction in transition-metal oxide heterostructures
journal, October 2016
- Li, Binzhi; Chopdekar, Rajesh V.; N'Diaye, Alpha T.
- Applied Physics Letters, Vol. 109, Issue 15
Chemically Driven Nanoscopic Magnetic Phase Separation at the SrTiO3(001)/La1-xSrxCoO3 Interface
journal, April 2011
- Torija, Maria A.; Sharma, Manish; Gazquez, Jaume
- Advanced Materials, Vol. 23, Issue 24
Colossal magnetoresistance
journal, September 1997
- Ramirez, A. P.
- Journal of Physics: Condensed Matter, Vol. 9, Issue 39
Hard/soft magnetic heterostructures: model exchange-spring magnets
journal, October 1999
- Fullerton, Eric E.; Jiang, J. S.; Bader, S. D.
- Journal of Magnetism and Magnetic Materials, Vol. 200, Issue 1-3
Recent advances in pulsed-laser deposition of complex oxides
journal, June 2008
- Christen, H. M.; Eres, G.
- Journal of Physics: Condensed Matter, Vol. 20, Issue 26
Exchange bias in La 0.7 Sr 0.3 MnO 3 /NiO and LaMnO 3 /NiO interfaces
journal, June 2013
- Ning, X. K.; Wang, Z. J.; Zhao, X. G.
- Journal of Applied Physics, Vol. 113, Issue 22
Multiple magnetic phases of
journal, January 2003
- Dass, R. I.; Goodenough, J. B.
- Physical Review B, Vol. 67, Issue 1
Exchange-spring behavior in epitaxial hard/soft magnetic bilayers
journal, November 1998
- Fullerton, Eric E.; Jiang, J. S.; Grimsditch, M.
- Physical Review B, Vol. 58, Issue 18
Interfacial Ferromagnetism and Exchange Bias in Superlattices
journal, November 2012
- He, C.; Grutter, A. J.; Gu, M.
- Physical Review Letters, Vol. 109, Issue 19
Inverted hysteresis and giant exchange bias in La0.7Sr0.3MnO3/SrRuO3 superlattices
journal, August 2010
- Ziese, M.; Vrejoiu, I.; Hesse, D.
- Applied Physics Letters, Vol. 97, Issue 5