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Title: Designing switchable near room-temperature multiferroics via the discovery of a novel magnetoelectric coupling

Abstract

Magnetoelectric (ME) coupling is the key ingredient for realizing the cross-control of magnetism and ferroelectricity in multiferroics. However, multiferroics are not only rare, especially at room-temperature, in nature but also the overwhelming majority of known multiferroics do not exhibit highly-desired switching of the direction of magnetization when the polarization is reversed by an electric field. Here, we report group theory analysis and ab initio calculations demonstrating, and revealing the origin of, the existence of a novel form of ME coupling term in a specific class of materials that does allow such switching. This term naturally explains the previously observed electric field control of magnetism in the first known multiferroics, i.e., the Ni–X boracite family. It is also presently used to design a switchable near room-temperature multiferroic (namely, LaSrMnOsO6 perovskite) having rather large ferroelectric polarization and spontaneous magnetization, as well as strong ME coupling.

Authors:
 [1];  [2];  [3];  [4]
  1. Fudan Univ., Shanghai (China); Hefei Normal Univ. (China)
  2. Fudan Univ., Shanghai (China); Hubei Univ. of Arts and Sciences, Xiangyang (China)
  3. Univ. of Arkansas, Fayetteville, AR (United States)
  4. Fudan Univ., Shanghai (China); Collaborative Innovation Center of Advanced Microstructures, Nanjing (China)
Publication Date:
Research Org.:
Univ. of Arkansas, Fayetteville, AR (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1500034
Grant/Contract Number:  
SC0002220
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
New Journal of Physics
Additional Journal Information:
Journal Volume: 20; Journal Issue: 5; Journal ID: ISSN 1367-2630
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Feng, J. S., Xu, Ke, Bellaiche, Laurent, and Xiang, H. J. Designing switchable near room-temperature multiferroics via the discovery of a novel magnetoelectric coupling. United States: N. p., 2018. Web. doi:10.1088/1367-2630/aabed3.
Feng, J. S., Xu, Ke, Bellaiche, Laurent, & Xiang, H. J. Designing switchable near room-temperature multiferroics via the discovery of a novel magnetoelectric coupling. United States. doi:10.1088/1367-2630/aabed3.
Feng, J. S., Xu, Ke, Bellaiche, Laurent, and Xiang, H. J. Tue . "Designing switchable near room-temperature multiferroics via the discovery of a novel magnetoelectric coupling". United States. doi:10.1088/1367-2630/aabed3. https://www.osti.gov/servlets/purl/1500034.
@article{osti_1500034,
title = {Designing switchable near room-temperature multiferroics via the discovery of a novel magnetoelectric coupling},
author = {Feng, J. S. and Xu, Ke and Bellaiche, Laurent and Xiang, H. J.},
abstractNote = {Magnetoelectric (ME) coupling is the key ingredient for realizing the cross-control of magnetism and ferroelectricity in multiferroics. However, multiferroics are not only rare, especially at room-temperature, in nature but also the overwhelming majority of known multiferroics do not exhibit highly-desired switching of the direction of magnetization when the polarization is reversed by an electric field. Here, we report group theory analysis and ab initio calculations demonstrating, and revealing the origin of, the existence of a novel form of ME coupling term in a specific class of materials that does allow such switching. This term naturally explains the previously observed electric field control of magnetism in the first known multiferroics, i.e., the Ni–X boracite family. It is also presently used to design a switchable near room-temperature multiferroic (namely, LaSrMnOsO6 perovskite) having rather large ferroelectric polarization and spontaneous magnetization, as well as strong ME coupling.},
doi = {10.1088/1367-2630/aabed3},
journal = {New Journal of Physics},
issn = {1367-2630},
number = 5,
volume = 20,
place = {United States},
year = {2018},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
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