Electric control of magnetism in low-dimensional magnets on ferroelectric surfaces

Employing first-principles electronic structure calculations, we have studied the electric field controls of magnetism and magnetic anisotropy energy (MAE) of the Fe adatoms on ferroelectric BaTiO3 and PbTiO3 surfaces. Remarkably, those effects e...

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Main Authors: Dorj Odkhuu, Tumurbaatar Tsevelmaa, S. H. Rhim, Soon Cheol Hong, Deleg Sangaa
Format: Article
Language:English
Published: AIP Publishing LLC 2017-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4975131
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author Dorj Odkhuu
Tumurbaatar Tsevelmaa
S. H. Rhim
Soon Cheol Hong
Deleg Sangaa
author_facet Dorj Odkhuu
Tumurbaatar Tsevelmaa
S. H. Rhim
Soon Cheol Hong
Deleg Sangaa
author_sort Dorj Odkhuu
collection DOAJ
description Employing first-principles electronic structure calculations, we have studied the electric field controls of magnetism and magnetic anisotropy energy (MAE) of the Fe adatoms on ferroelectric BaTiO3 and PbTiO3 surfaces. Remarkably, those effects exhibit dependence of the level of coverage as well as adsorption site of Fe atoms. While the magnitude of MAE is shown tunable by ferroelectric polarization in the full coverage of Fe monolayer, the direction of magnetization undergoes a transition from perpendicular to in-plane for the half or lower coverages. This magnetization reorientation is mainly ascribed to the site-dependent Fe d–O p hybridization, as a consequence of the formation of FeTiO2 layer at the surface.
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spelling doaj.art-11ed531b543a4cf78b389e17fa81ae472022-12-21T17:30:38ZengAIP Publishing LLCAIP Advances2158-32262017-05-0175055816055816-710.1063/1.4975131174791ADVElectric control of magnetism in low-dimensional magnets on ferroelectric surfacesDorj Odkhuu0Tumurbaatar Tsevelmaa1S. H. Rhim2Soon Cheol Hong3Deleg Sangaa4Department of Physics, Incheon National University, Incheon 22012, South KoreaDepartment of Physics and Energy Harvest Storage Research Center, University of Ulsan, Ulsan 44610, South KoreaDepartment of Physics and Energy Harvest Storage Research Center, University of Ulsan, Ulsan 44610, South KoreaDepartment of Physics and Energy Harvest Storage Research Center, University of Ulsan, Ulsan 44610, South KoreaInstitute of Physics and Technology, Mongolian Academy of Sciences, Ulaanbaatar 210651, MongoliaEmploying first-principles electronic structure calculations, we have studied the electric field controls of magnetism and magnetic anisotropy energy (MAE) of the Fe adatoms on ferroelectric BaTiO3 and PbTiO3 surfaces. Remarkably, those effects exhibit dependence of the level of coverage as well as adsorption site of Fe atoms. While the magnitude of MAE is shown tunable by ferroelectric polarization in the full coverage of Fe monolayer, the direction of magnetization undergoes a transition from perpendicular to in-plane for the half or lower coverages. This magnetization reorientation is mainly ascribed to the site-dependent Fe d–O p hybridization, as a consequence of the formation of FeTiO2 layer at the surface.http://dx.doi.org/10.1063/1.4975131
spellingShingle Dorj Odkhuu
Tumurbaatar Tsevelmaa
S. H. Rhim
Soon Cheol Hong
Deleg Sangaa
Electric control of magnetism in low-dimensional magnets on ferroelectric surfaces
AIP Advances
title Electric control of magnetism in low-dimensional magnets on ferroelectric surfaces
title_full Electric control of magnetism in low-dimensional magnets on ferroelectric surfaces
title_fullStr Electric control of magnetism in low-dimensional magnets on ferroelectric surfaces
title_full_unstemmed Electric control of magnetism in low-dimensional magnets on ferroelectric surfaces
title_short Electric control of magnetism in low-dimensional magnets on ferroelectric surfaces
title_sort electric control of magnetism in low dimensional magnets on ferroelectric surfaces
url http://dx.doi.org/10.1063/1.4975131
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AT sooncheolhong electriccontrolofmagnetisminlowdimensionalmagnetsonferroelectricsurfaces
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