在层状二硫化钼单晶中控制铁磁易轴。

Controlling ferromagnetic easy axis in a layered MoS2 single crystal.

作者信息

Han Sang Wook, Hwang Young Hun, Kim Seon-Ho, Yun Won Seok, Lee J D, Park Min Gyu, Ryu Sunmin, Park Ju Sang, Yoo Dae-Hwang, Yoon Sang-Pil, Hong Soon Cheol, Kim Kwang S, Park Young S

机构信息

Department of Physics and Energy Harvest-Storage Research Center, University of Ulsan, Ulsan 680-749, Korea.

Department of Chemistry and Department of Physics, Center for Superfunctional Materials, Pohang University of Science and Technology, Pohang 790-784, Korea.

出版信息

Phys Rev Lett. 2013 Jun 14;110(24):247201. doi: 10.1103/PhysRevLett.110.247201. Epub 2013 Jun 11.

DOI:10.1103/PhysRevLett.110.247201

PMID:25165955

Abstract

We report the effective methods to induce weak ferromagnetism in pristine MoS2 persisting up to room temperature with the improved transport property, which would lead to new spintronics devices. The hydrogenation of MoS2 by heating at 300 °C for 1 h leads to the easy axis out of plane, while the irradiation of proton with a dose of 1 × 10(13) P/cm(2) leads to the easy axis in plane. The theoretical modeling supports such magnetic easy axes.

摘要

我们报道了在原始二硫化钼中诱导出直至室温仍存在的弱铁磁性的有效方法，同时其输运性能得到改善，这将促成新型自旋电子器件。在300℃加热1小时对二硫化钼进行氢化处理会导致易轴垂直于平面，而用剂量为1×10(13) P/cm(2)的质子辐照会导致易轴在平面内。理论建模支持这种磁易轴。