Detrimental effect of interfacial Dzyaloshinskii-Moriya interaction on perpendicular spin-transfer-torque magnetic random access memory

Peong Hwa Jang, Kyungmi Song, Seung Jae Lee, Seo Won Lee, Kyoung Jin Lee

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Interfacial Dzyaloshinskii-Moriya interaction in ferromagnet/heavy metal bilayers is recently of considerable interest as it offers an efficient control of domain walls and the stabilization of magnetic skyrmions. However, its effect on the performance of perpendicular spin transfer torque memory has not been explored yet. We show based on numerical studies that the interfacial Dzyaloshinskii-Moriya interaction decreases the thermal energy barrier while increases the switching current. As high thermal energy barrier as well as low switching current is required for the commercialization of spin torque memory, our results suggest that the interfacial Dzyaloshinskii-Moriya interaction should be minimized for spin torque memory applications.

Original languageEnglish
Article number202401
JournalApplied Physics Letters
Volume107
Issue number20
DOIs
Publication statusPublished - 2015 Nov 16

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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