The possible magnetoelectric coupling induced by adsorption in SnTe films

被引：5

作者：

Fu, Zhaoming ^{[1
]}

Liu, Meng ^{[1
]}

Zhang, Na ^{[1
]}

An, Yipeng ^{[1
]}

Yang, Zongxian ^{[1
]}

机构：

[1] Henan Normal Univ, Coll Phys & Mat Sci, Xinxiang 453007, Henan, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2018年 / 428卷

基金：

中国国家自然科学基金;

关键词：

Adsorption; Magnetoelectric coupling; Two-dimensional materials; MULTIFERROICS; PROGRESS; PHYSICS;

D O I：

10.1016/j.apsusc.2017.09.119

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Based on the recent discovery of the stable in-plane spontaneous polarization in SnTe films. We report the possible magnetoelectric (ME) coupling induced by adsorption in SnTe films by performing density functional calculations. Firstly, we investigate the adsorption-induced magnetic behaviors on the two-dimensional SnTe monolayer. Five kinds of adatoms (H, B, C, N and O) are taken into account. It is found that the SnTe with adsorbing H and B have nonzero magnetic moments and good stability. Secondly, the coexistence of the ferromagnetism and ferroelectrics (i.e. multiferroics) is observed in H-adsorbed SnTe. The magnetoelectric coupling in this system is studied by calculating the poralazition in different magnetic structures (antiferromagnetic and ferroelectric). According to our study, we propose that it is a possible method obtaining the multiferroicity and ME coupling to modify the SnTe films by chemical adsorption of single atoms. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：89 / 93

页数：5

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