Spin orbit torque switching of magnetization in the presence of two different orthogonal spin-orbit magnetic fields

Seongjin Park, Kyung Jae Lee, Kyoul Han, Sanghoon Lee, Xinyu Liu, Margaret Dobrowolska, Jacek K. Furdyna

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2 Citations (Scopus)

Abstract

Switching of magnetization by spin-orbit torque in the (Ga,Mn)(As,P) film was studied with currents along 100 crystal directions and an in-plane magnetic field bias. This geometry allowed us to identify the presence of two independent spin-orbit-induced magnetic fields: the Rashba field and the Dresselhaus field. Specifically, we observe that when the in-plane bias field is along the current (I || Hbias), switching is dominated by the Rashba field, while the Dresselhaus field dominates magnetization reversal when the bias field is perpendicular to the current (I ⊥ Hbias). In our experiments, the magnitudes of the Rashba and Dresselhaus fields were determined to be 2.0 and 7.5 Oe, respectively, at a current density of 8.0 × 105 A/cm2.

Original languageEnglish
Article number112403
JournalApplied Physics Letters
Volume121
Issue number11
DOIs
Publication statusPublished - 2022 Sept 12

Bibliographical note

Publisher Copyright:
© 2022 Author(s).

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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