Cargando…

Drastic change of magnetic anisotropy in Fe(3)GeTe(2) and Fe(4)GeTe(2) monolayers under electric field studied by density functional theory

Magnetic anisotropy energy (MAE) is one of the most important properties in two-dimensional magnetism since the magnetization in two dimension is vulnerable to the spin rotational fluctuations. Using density functional theory calculation, we show that perpendicular electric field dramatically enhanc...

Descripción completa

Detalles Bibliográficos
Autores principales: Kim, Dongwook, Lee, Changhoon, Jang, Bo Gyu, Kim, Kyoo, Shim, Ji Hoon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8413389/
https://www.ncbi.nlm.nih.gov/pubmed/34475450
http://dx.doi.org/10.1038/s41598-021-96639-3
_version_ 1783747653460295680
author Kim, Dongwook
Lee, Changhoon
Jang, Bo Gyu
Kim, Kyoo
Shim, Ji Hoon
author_facet Kim, Dongwook
Lee, Changhoon
Jang, Bo Gyu
Kim, Kyoo
Shim, Ji Hoon
author_sort Kim, Dongwook
collection PubMed
description Magnetic anisotropy energy (MAE) is one of the most important properties in two-dimensional magnetism since the magnetization in two dimension is vulnerable to the spin rotational fluctuations. Using density functional theory calculation, we show that perpendicular electric field dramatically enhances the in-plane and out-of-plane magnetic anisotropies in Fe(3)GeTe(2) and Fe(4)GeTe(2) monolayers, respectively, allowing the change of easy axis in both systems. The changes of the MAE under the electric field are understood as the result of charge redistribution inside the layer, which is available due to the three-dimensional (3D) network of Fe atoms in the monolayers. As a result, we suggest that due to the unique structure of Fe(n)GeTe(2) compounds composed by peculiar 3D networks of metal atoms, the MAE can be dramatically changed by the external perpendicular electric field.
format Online
Article
Text
id pubmed-8413389
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-84133892021-09-07 Drastic change of magnetic anisotropy in Fe(3)GeTe(2) and Fe(4)GeTe(2) monolayers under electric field studied by density functional theory Kim, Dongwook Lee, Changhoon Jang, Bo Gyu Kim, Kyoo Shim, Ji Hoon Sci Rep Article Magnetic anisotropy energy (MAE) is one of the most important properties in two-dimensional magnetism since the magnetization in two dimension is vulnerable to the spin rotational fluctuations. Using density functional theory calculation, we show that perpendicular electric field dramatically enhances the in-plane and out-of-plane magnetic anisotropies in Fe(3)GeTe(2) and Fe(4)GeTe(2) monolayers, respectively, allowing the change of easy axis in both systems. The changes of the MAE under the electric field are understood as the result of charge redistribution inside the layer, which is available due to the three-dimensional (3D) network of Fe atoms in the monolayers. As a result, we suggest that due to the unique structure of Fe(n)GeTe(2) compounds composed by peculiar 3D networks of metal atoms, the MAE can be dramatically changed by the external perpendicular electric field. Nature Publishing Group UK 2021-09-02 /pmc/articles/PMC8413389/ /pubmed/34475450 http://dx.doi.org/10.1038/s41598-021-96639-3 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Kim, Dongwook
Lee, Changhoon
Jang, Bo Gyu
Kim, Kyoo
Shim, Ji Hoon
Drastic change of magnetic anisotropy in Fe(3)GeTe(2) and Fe(4)GeTe(2) monolayers under electric field studied by density functional theory
title Drastic change of magnetic anisotropy in Fe(3)GeTe(2) and Fe(4)GeTe(2) monolayers under electric field studied by density functional theory
title_full Drastic change of magnetic anisotropy in Fe(3)GeTe(2) and Fe(4)GeTe(2) monolayers under electric field studied by density functional theory
title_fullStr Drastic change of magnetic anisotropy in Fe(3)GeTe(2) and Fe(4)GeTe(2) monolayers under electric field studied by density functional theory
title_full_unstemmed Drastic change of magnetic anisotropy in Fe(3)GeTe(2) and Fe(4)GeTe(2) monolayers under electric field studied by density functional theory
title_short Drastic change of magnetic anisotropy in Fe(3)GeTe(2) and Fe(4)GeTe(2) monolayers under electric field studied by density functional theory
title_sort drastic change of magnetic anisotropy in fe(3)gete(2) and fe(4)gete(2) monolayers under electric field studied by density functional theory
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8413389/
https://www.ncbi.nlm.nih.gov/pubmed/34475450
http://dx.doi.org/10.1038/s41598-021-96639-3
work_keys_str_mv AT kimdongwook drasticchangeofmagneticanisotropyinfe3gete2andfe4gete2monolayersunderelectricfieldstudiedbydensityfunctionaltheory
AT leechanghoon drasticchangeofmagneticanisotropyinfe3gete2andfe4gete2monolayersunderelectricfieldstudiedbydensityfunctionaltheory
AT jangbogyu drasticchangeofmagneticanisotropyinfe3gete2andfe4gete2monolayersunderelectricfieldstudiedbydensityfunctionaltheory
AT kimkyoo drasticchangeofmagneticanisotropyinfe3gete2andfe4gete2monolayersunderelectricfieldstudiedbydensityfunctionaltheory
AT shimjihoon drasticchangeofmagneticanisotropyinfe3gete2andfe4gete2monolayersunderelectricfieldstudiedbydensityfunctionaltheory