Critical switching current density induced by spin Hall effect in magnetic structures with first-and second-order perpendicular magnetic anisotropy

Seok Jin Yun, Kyung Jin Lee, Sang Ho Lim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this study, we derive analytical expressions for the critical switching current density induced by spin Hall effect in magnetic structures with the first-and second-order perpendicular magnetic anisotropy. We confirm the validity of the expressions by comparing the analytical results with those obtained from a macrospin simulation. Moreover, we find that for a particular thermal stability parameter, the switching current density can be minimized for a slightly positive second-order perpendicular magnetic anisotropy and the minimum switching current density can further be tuned using an external magnetic field. The analytical expressions are of considerable value in designing high-density magnetic random access memory and cryogenic memory.

Original languageEnglish
Article number15314
JournalScientific reports
Volume7
Issue number1
DOIs
Publication statusPublished - 2017 Dec 1

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'Critical switching current density induced by spin Hall effect in magnetic structures with first-and second-order perpendicular magnetic anisotropy'. Together they form a unique fingerprint.

  • Cite this