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Title: Inversion of ferrimagnetic magnetization by ferroelectric switching via a novel magnetoelectric coupling

Although several multiferroic materials or heterostructures have been extensively studied, finding strong magnetoelectric couplings for the electric field control of the magnetization remains challenging. Here, a novel interfacial magnetoelectric coupling based on three components (ferroelectric dipole, magnetic moment, and antiferromagnetic order) is analytically formulated. As an extension of carrier-mediated magnetoelectricity, the new coupling is shown to induce an electric-magnetic hysteresis loop. In addition, realizations employing BiFeO 3 bilayers grown along the [111] axis are proposed. Without involving magnetic phase transitions, the magnetization orientation can be switched by the carrier modulation driven by the field effect, as confirmed using first-principles calculations.
Authors:
 [1] ;  [1] ;  [2] ;  [1]
  1. Southeast Univ., Nanjing (China)
  2. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725; YBJJ1619
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 117; Journal Issue: 3; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1328354
Alternate Identifier(s):
OSTI ID: 1261699

Weng, Yakui, Lin, Lingfang, Dagotto, Elbio, and Dong, Shuai. Inversion of ferrimagnetic magnetization by ferroelectric switching via a novel magnetoelectric coupling. United States: N. p., Web. doi:10.1103/PhysRevLett.117.037601.
Weng, Yakui, Lin, Lingfang, Dagotto, Elbio, & Dong, Shuai. Inversion of ferrimagnetic magnetization by ferroelectric switching via a novel magnetoelectric coupling. United States. doi:10.1103/PhysRevLett.117.037601.
Weng, Yakui, Lin, Lingfang, Dagotto, Elbio, and Dong, Shuai. 2016. "Inversion of ferrimagnetic magnetization by ferroelectric switching via a novel magnetoelectric coupling". United States. doi:10.1103/PhysRevLett.117.037601. https://www.osti.gov/servlets/purl/1328354.
@article{osti_1328354,
title = {Inversion of ferrimagnetic magnetization by ferroelectric switching via a novel magnetoelectric coupling},
author = {Weng, Yakui and Lin, Lingfang and Dagotto, Elbio and Dong, Shuai},
abstractNote = {Although several multiferroic materials or heterostructures have been extensively studied, finding strong magnetoelectric couplings for the electric field control of the magnetization remains challenging. Here, a novel interfacial magnetoelectric coupling based on three components (ferroelectric dipole, magnetic moment, and antiferromagnetic order) is analytically formulated. As an extension of carrier-mediated magnetoelectricity, the new coupling is shown to induce an electric-magnetic hysteresis loop. In addition, realizations employing BiFeO3 bilayers grown along the [111] axis are proposed. Without involving magnetic phase transitions, the magnetization orientation can be switched by the carrier modulation driven by the field effect, as confirmed using first-principles calculations.},
doi = {10.1103/PhysRevLett.117.037601},
journal = {Physical Review Letters},
number = 3,
volume = 117,
place = {United States},
year = {2016},
month = {7}
}

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