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Title: Stabilization of weak ferromagnetism by strong magnetic response to epitaxial strain in multiferroic BiFeO3

Abstract

Multiferroic BiFeO3 exhibits excellent magnetoelectric coupling critical for magnetic information processing with minimal power consumption. Thus, the degenerate nature of the easy spin axis in the (111) plane presents roadblocks for real world applications. Here, we explore the stabilization and switchability of the weak ferromagnetic moments under applied epitaxial strain using a combination of first-principles calculations and group-theoretic analyses. We demonstrate that the antiferromagnetic moment vector can be stabilized along unique crystallographic directions ([110] and [-110]) under compressive and tensile strains. A direct coupling between the anisotropic antiferrodistortive rotations and Dzyaloshinskii-Moria interactions drives the stabilization of weak ferromagnetism. Furthermore, energetically competing C- and G-type magnetic orderings are observed at high compressive strains, suggesting that it may be possible to switch the weak ferromagnetism on and off under application of strain. These findings emphasize the importance of strain and antiferrodistortive rotations as routes to enhancing induced weak ferromagnetism in multiferroic oxides.

Authors:
 [1];  [1];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1214493
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 5; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; atomistic models; electronic and spintronic devices; magnetic properties and materials

Citation Formats

Cooper, Valentino R., Lee, Jun Hee, Krogel, Jaron T., Okamoto, Satoshi, and Dixit, Hemant M. Stabilization of weak ferromagnetism by strong magnetic response to epitaxial strain in multiferroic BiFeO3. United States: N. p., 2015. Web. doi:10.1038/srep12969.
Cooper, Valentino R., Lee, Jun Hee, Krogel, Jaron T., Okamoto, Satoshi, & Dixit, Hemant M. Stabilization of weak ferromagnetism by strong magnetic response to epitaxial strain in multiferroic BiFeO3. United States. https://doi.org/10.1038/srep12969
Cooper, Valentino R., Lee, Jun Hee, Krogel, Jaron T., Okamoto, Satoshi, and Dixit, Hemant M. 2015. "Stabilization of weak ferromagnetism by strong magnetic response to epitaxial strain in multiferroic BiFeO3". United States. https://doi.org/10.1038/srep12969. https://www.osti.gov/servlets/purl/1214493.
@article{osti_1214493,
title = {Stabilization of weak ferromagnetism by strong magnetic response to epitaxial strain in multiferroic BiFeO3},
author = {Cooper, Valentino R. and Lee, Jun Hee and Krogel, Jaron T. and Okamoto, Satoshi and Dixit, Hemant M.},
abstractNote = {Multiferroic BiFeO3 exhibits excellent magnetoelectric coupling critical for magnetic information processing with minimal power consumption. Thus, the degenerate nature of the easy spin axis in the (111) plane presents roadblocks for real world applications. Here, we explore the stabilization and switchability of the weak ferromagnetic moments under applied epitaxial strain using a combination of first-principles calculations and group-theoretic analyses. We demonstrate that the antiferromagnetic moment vector can be stabilized along unique crystallographic directions ([110] and [-110]) under compressive and tensile strains. A direct coupling between the anisotropic antiferrodistortive rotations and Dzyaloshinskii-Moria interactions drives the stabilization of weak ferromagnetism. Furthermore, energetically competing C- and G-type magnetic orderings are observed at high compressive strains, suggesting that it may be possible to switch the weak ferromagnetism on and off under application of strain. These findings emphasize the importance of strain and antiferrodistortive rotations as routes to enhancing induced weak ferromagnetism in multiferroic oxides.},
doi = {10.1038/srep12969},
url = {https://www.osti.gov/biblio/1214493}, journal = {Scientific Reports},
issn = {2045-2322},
number = ,
volume = 5,
place = {United States},
year = {Thu Aug 06 00:00:00 EDT 2015},
month = {Thu Aug 06 00:00:00 EDT 2015}
}

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Cited by: 15 works
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Works referenced in this record:

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journal, April 2013


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journal, September 2008


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journal, May 2013


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journal, March 2013


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journal, February 2012


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journal, February 2005


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journal, August 2012


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journal, June 2013


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journal, July 1996


Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set
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First-principles study of spontaneous polarization in multiferroic Bi Fe O 3
journal, January 2005


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journal, October 2011


Room Temperature Electrical Manipulation of Giant Magnetoresistance in Spin Valves Exchange-Biased with BiFeO 3
journal, February 2012


Crafting the magnonic and spintronic response of BiFeO3 films by epitaxial strain
journal, April 2013


Spiral magnetic ordering in bismuth ferrite
journal, August 1982


Ab Initio Indications for Giant Magnetoelectric Effects Driven by Structural Softness
journal, July 2010


Epitaxial BiFeO3 Multiferroic Thin Film Heterostructures
journal, March 2003


A Strain-Driven Morphotropic Phase Boundary in BiFeO3
journal, November 2009


Space-time parity violation and magnetoelectric interactions in antiferromagnets
journal, June 2004


Works referencing / citing this record:

Correlation between Geometrically Induced Oxygen Octahedral Tilts and Multiferroic Behaviors in BiFeO 3 Films
journal, March 2018


Complex strain evolution of polar and magnetic order in multiferroic BiFeO3 thin films
journal, September 2018


Ferromagnetic-like behavior of Bi0.9La0.1FeO3–KBr nanocomposites
journal, July 2019


Ferromagnetic-like behavior of Bi0.9La0.1FeO3-KBr nanocomposites
preprint, January 2019