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Title: Spin orbit torque switching of magnetization in the presence of two different orthogonal spin–orbit magnetic fields
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[Formula: see text]H bias ), switching is dominated by the Rashba field, while the Dresselhaus field dominates magnetization reversal when the bias field is perpendicular to the current (I ⊥ H bias ). 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 × 10 5 A/cm 2 .  more » « less
Award ID(s):
1905277
NSF-PAR ID:
10381868
Author(s) / Creator(s):
; ; ; ; ; ;
Date Published:
Journal Name:
Applied Physics Letters
Volume:
121
Issue:
11
ISSN:
0003-6951
Page Range / eLocation ID:
112403
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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