Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: Giant anisotropic magnetoresistance in oxygen-vacancy-ordered epitaxial La0.5Sr0.5CoO3–δ films

Abstract

Recent advances in complex oxide heterostructures have realized extraordinary control over oxygen vacancies ($$V_\text{O}$$), including strain-tuned $$V_\text{O}$$ order, and electric-field-controlled transformations between perovskite and $$V_\text{O}$$-ordered structures. Perovskite cobaltites such as La1–xSrxCoO3–δ provide a prime example, recent work demonstrating that strain engineering of $$V_\text{O}$$ ordering induces large (~107 erg/cm3) perpendicular magnetic anisotropy. Here we show that $$V_\text{O}$$-ordered epitaxial La0.5Sr0.5CoO3–δ films exhibit not only strong magnetic anisotropy, but also a giant form of anisotropic magnetoresistance (AMR). This has magnetic field, temperature, and angular dependencies in quantitative accord with conventional AMR, but with AMR ratios up to an extraordinary 40.3%, 20 times enhanced over bulk cobaltites, and ~10–100 times larger than typical transition metals. This giant AMR has no strong dependence on heteroepitaxial strain (between –2.1% and +1.8%) or thickness, and is instead ascribed to symmetry lowering associated with $$V_\text{O}$$ ordering. The AMR ratios thus obtained in this work are among the largest reported in the over 160-year history of this phenomenon, despite the absence of heavy elements.

Authors:
 [1];  [2];  [3];  [3]; ORCiD logo [2]
+ Show Author Affiliations
  1. Univ. of Minnesota, Minneapolis, MN (United States); Augsburg University, Minneapolis, MN (United States)
  2. Univ. of Minnesota, Minneapolis, MN (United States)
  3. Universidad Complutense de Madrid (Spain)
Publication Date:
Research Org.:
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Science Foundation (NSF); Ministerio de Economía y Competitividad (MINECO); Federación Española de Enfermedades Raras (FEDER)
OSTI Identifier:
1802968
Grant/Contract Number:  
SC0016371; MAT2015-066888-C3-3-R; RTI2018-097895-B-C43
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Materials
Additional Journal Information:
Journal Volume: 4; Journal Issue: 9; Journal ID: ISSN 2475-9953
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Materials Science

Citation Formats

Walter, Jeff, Bose, Shameek, Cabero, Mariona, Varela, Maria, and Leighton, Chris. Giant anisotropic magnetoresistance in oxygen-vacancy-ordered epitaxial La0.5Sr0.5CoO3–δ films. United States: N. p., 2020. Web. doi:10.1103/physrevmaterials.4.091401.
Copy to clipboard
Walter, Jeff, Bose, Shameek, Cabero, Mariona, Varela, Maria, & Leighton, Chris. Giant anisotropic magnetoresistance in oxygen-vacancy-ordered epitaxial La0.5Sr0.5CoO3–δ films. United States. https://doi.org/10.1103/physrevmaterials.4.091401
Copy to clipboard
Walter, Jeff, Bose, Shameek, Cabero, Mariona, Varela, Maria, and Leighton, Chris. Thu . "Giant anisotropic magnetoresistance in oxygen-vacancy-ordered epitaxial La0.5Sr0.5CoO3–δ films". United States. https://doi.org/10.1103/physrevmaterials.4.091401. https://www.osti.gov/servlets/purl/1802968.
Copy to clipboard
@article{osti_1802968,
title = {Giant anisotropic magnetoresistance in oxygen-vacancy-ordered epitaxial La0.5Sr0.5CoO3–δ films},
author = {Walter, Jeff and Bose, Shameek and Cabero, Mariona and Varela, Maria and Leighton, Chris},
abstractNote = {Recent advances in complex oxide heterostructures have realized extraordinary control over oxygen vacancies ($V_\text{O}$), including strain-tuned $V_\text{O}$ order, and electric-field-controlled transformations between perovskite and $V_\text{O}$-ordered structures. Perovskite cobaltites such as La1–xSrxCoO3–δ provide a prime example, recent work demonstrating that strain engineering of $V_\text{O}$ ordering induces large (~107 erg/cm3) perpendicular magnetic anisotropy. Here we show that $V_\text{O}$-ordered epitaxial La0.5Sr0.5CoO3–δ films exhibit not only strong magnetic anisotropy, but also a giant form of anisotropic magnetoresistance (AMR). This has magnetic field, temperature, and angular dependencies in quantitative accord with conventional AMR, but with AMR ratios up to an extraordinary 40.3%, 20 times enhanced over bulk cobaltites, and ~10–100 times larger than typical transition metals. This giant AMR has no strong dependence on heteroepitaxial strain (between –2.1% and +1.8%) or thickness, and is instead ascribed to symmetry lowering associated with $V_\text{O}$ ordering. The AMR ratios thus obtained in this work are among the largest reported in the over 160-year history of this phenomenon, despite the absence of heavy elements.},
doi = {10.1103/physrevmaterials.4.091401},
journal = {Physical Review Materials},
number = 9,
volume = 4,
place = {United States},
year = {Thu Sep 17 00:00:00 EDT 2020},
month = {Thu Sep 17 00:00:00 EDT 2020}
}
Copy to clipboard
Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/physrevmaterials.4.091401
Copyright Statement
Other availability
Search WorldCat Search WorldCat to find libraries that may hold this journal
Save / Share:
Export Metadata
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:

Topotactic Phase Transformation of the Brownmillerite SrCoO 2.5 to the Perovskite SrCoO 3- δ
journal, July 2013

Anisotropic magnetoresistance of (00h), (0hh) and (hhh) La2/3Sr1/3MnO3 thin films on (001) Si substrates
journal, March 2000

  • Bibes, M.; Martı́nez, B.; Fontcuberta, J.
  • Journal of Magnetism and Magnetic Materials, Vol. 211, Issue 1-3
  • DOI: 10.1016/S0304-8853(99)00735-0

Phase separation in superoxygenated La2-xSrxCuO4+y
journal, April 2006

  • Mohottala, Hashini E.; Wells, Barrett O.; Budnick, Joseph I.
  • Nature Materials, Vol. 5, Issue 5
  • DOI: 10.1038/nmat1633

Crossover Behavior of the Anomalous Hall Effect and Anomalous Nernst Effect in Itinerant Ferromagnets
journal, August 2007

Electronic transport in doped SrTiO 3 : Conduction mechanisms and potential applications
journal, April 2010

Reversible redox reactions in an epitaxially stabilized SrCoOx oxygen sponge
journal, August 2013

  • Jeen, Hyoungjeen; Choi, Woo Seok; Biegalski, Michael D.
  • Nature Materials, Vol. 12, Issue 11
  • DOI: 10.1038/nmat3736

Low-field magnetoresistance in tetragonal La 1 − x Ca x MnO 3 sfilms
journal, March 1997

Lattice mismatch accommodation via oxygen vacancy ordering in epitaxial La 0.5 Sr 0.5 CoO 3-δ thin films
journal, July 2013

  • Gazquez, J.; Bose, Shameek; Sharma, M.
  • APL Materials, Vol. 1, Issue 1
  • DOI: 10.1063/1.4809547

Anisotropic magnetoresistance in tetragonal La 1− x Ca x MnO δ thin films
journal, August 1996

  • Eckstein, J. N.; Bozovic, I.; O’Donnell, J.
  • Applied Physics Letters, Vol. 69, Issue 9
  • DOI: 10.1063/1.117402

Distinct magnetic phases in structurally uniform SrCoO 3 − y
journal, June 2016

Suppression of Metal-Insulator Transition in VO2 by Electric Field-Induced Oxygen Vacancy Formation
journal, March 2013

Interface-induced phenomena in magnetism
journal, June 2017

Anisotropic magnetoresistance in colossal magnetoresistive La1−xSrxMnO3 thin films
journal, November 2007

  • Yau, Jeng-Bang; Hong, X.; Posadas, A.
  • Journal of Applied Physics, Vol. 102, Issue 10
  • DOI: 10.1063/1.2811919

Magnetic phase separation in SrCoOx (2.5 ≤ x ≤ 3)
journal, August 2011

  • Xie, C.; Nie, Y.; Wells, B.
  • Applied Physics Letters, Vol. 99, Issue 5, Article No. 052503
  • DOI: 10.1063/1.3622644

Metallicity and Superconductivity in Doped Strontium Titanate
journal, March 2019

Anisotropic magnetoresistance in manganites: experiment and theory
journal, March 2010

Tuning the magnetic properties of La Co O 3 thin films by epitaxial strain
journal, January 2008

Strain Control of Giant Magnetic Anisotropy in Metallic Perovskite SrCoO 3−δ Thin Films
journal, June 2018

  • Hu, Songbai; Cazorla, Claudio; Xiang, Feixiang
  • ACS Applied Materials & Interfaces, Vol. 10, Issue 26
  • DOI: 10.1021/acsami.8b03553

Anisotropic magnetoresistance in ferromagnetic 3d alloys
journal, July 1975

Atomic Resolution Analysis of the Defect Chemistry and Microdomain Structure of Brownmillerite-Type Strontium Cobaltite
journal, April 2002

Impact of stress on oxygen vacancy ordering in epitaxial (La0.5Sr0.5)CoO3−∂ thin films
journal, May 2003

  • Klenov, Dmitri O.; Donner, Wolfgang; Foran, Brendan
  • Applied Physics Letters, Vol. 82, Issue 20
  • DOI: 10.1063/1.1575503

Strain-induced majority carrier inversion in ferromagnetic epitaxial LaCo O 3 − δ thin films
journal, March 2020

Oxygen vacancies: The (in)visible friend of oxide electronics
journal, March 2020

  • Gunkel, F.; Christensen, D. V.; Chen, Y. Z.
  • Applied Physics Letters, Vol. 116, Issue 12
  • DOI: 10.1063/1.5143309

Bi-directional tuning of thermal transport in SrCoOx with electrochemically induced phase transitions
journal, February 2020

Anisotropic magnetoresistance of thin La 0.7 Ca 0.3 MnO 3 films
journal, March 1998

Crystallographic and magnetic structure of SrCoO 2.5 brownmillerite: Neutron study coupled with band-structure calculations
journal, August 2008

Anomalously large anisotropic magnetoresistance in a perovskite manganite
journal, August 2009

  • Li, R. -W.; Wang, H.; Wang, X.
  • Proceedings of the National Academy of Sciences, Vol. 106, Issue 34
  • DOI: 10.1073/pnas.0907618106

Giant electrostatic modification of magnetism via electrolyte-gate-induced cluster percolation in L a 1 − x S r x Co O 3 − δ
journal, November 2018

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
  • DOI: 10.1002/adma.201100417

Suppression of Ionic Liquid Gate-Induced Metallization of SrTiO 3 (001) by Oxygen
journal, September 2013

  • Li, Mingyang; Han, Wei; Jiang, Xin
  • Nano Letters, Vol. 13, Issue 10
  • DOI: 10.1021/nl402088f

Synthesis of cubic SrCoO 3 single crystal and its anisotropic magnetic and transport properties
journal, June 2011

Electric-field control of tri-state phase transformation with a selective dual-ion switch
journal, May 2017

  • Lu, Nianpeng; Zhang, Pengfei; Zhang, Qinghua
  • Nature, Vol. 546, Issue 7656
  • DOI: 10.1038/nature22389

Glass-Like Through-Plane Thermal Conductivity Induced by Oxygen Vacancies in Nanoscale Epitaxial La 0.5 Sr 0.5 CoO 3− δ
journal, November 2017

  • Wu, Xuewang; Walter, Jeff; Feng, Tianli
  • Advanced Functional Materials, Vol. 27, Issue 47
  • DOI: 10.1002/adfm.201704233

Anomalous anisotropic magnetoresistance in Pr0.67Sr0.33MnO3 thin films
journal, May 2000

  • Li, Qi; Wang, H. S.; Hu, Y. F.
  • Journal of Applied Physics, Vol. 87, Issue 9
  • DOI: 10.1063/1.373408

Epitaxial La0.5Sr0.5CoO3 thin films: Structure, magnetism, and transport
journal, July 2008

  • Torija, M. A.; Sharma, M.; Fitzsimmons, M. R.
  • Journal of Applied Physics, Vol. 104, Issue 2
  • DOI: 10.1063/1.2955725
    Sort by:
    [ × clear filter / sort ]

    Similar Records in DOE PAGES and OSTI.GOV collections: