Deterministic Current Induced Magnetic Switching Without External Field using Giant Spin Hall Effect of β-W

Type
Article

Authors
Chen, Wenzhe
Qian, Lijuan
Xiao, Gang

Online Publication Date
2018-05-25

Print Publication Date
2018-12

Date
2018-05-25

Abstract
Giant spin Hall effect (GSHE) has received significant attention for its potential in future spintronic applications. Spin current via GSHE-based thin films provides an effective and promising means to manipulate magnetization. However, an external in-plane magnetic field is required to consistently switch the perpendicular magnetic moment. We present an approach to realize field-free deterministic perpendicular magnetic switching with a new structure of FM/NM/FM. Our method takes advantage of the large spin Hall angle of transition metal β-W, so that the critical switching current density is only on the order of 106A/cm2 in the absence of magnetic field.

Citation
Chen W, Qian L, Xiao G (2018) Deterministic Current Induced Magnetic Switching Without External Field using Giant Spin Hall Effect of β-W. Scientific Reports 8. Available: http://dx.doi.org/10.1038/s41598-018-26586-z.

Acknowledgements
We thank Shu Wang for technical assistance. This work was supported by National Science Foundation through Grants No. DMR-1307056 and by Nanoelectronics Research Initiative (NRI) through the Institute for Nanoelectronics Discovery and Exploration (INDEX).The research reported in this publication was also supported by research funding from King Abdullah University of Science and Technology (KAUST).

Publisher
Springer Nature

Journal
Scientific Reports

DOI
10.1038/s41598-018-26586-z

Additional Links
https://www.nature.com/articles/s41598-018-26586-z

Permanent link to this record