Current-Induced Effective Fields Detected by Magnetotrasport Measurements

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Published 18 October 2013 • Copyright (c) 2013 The Japan Society of Applied Physics
, , Citation Masashi Kawaguchi et al 2013 Appl. Phys. Express 6 113002 DOI 10.7567/APEX.6.113002

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Author affiliations

1 Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan

2 Center for Spintronics Integrated Systems, Tohoku University, Sendai 980-8577, Japan

3 WPI-Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan

4 Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Sendai 980-8577, Japan

5 Department of Applied Physics, Faculty of Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan

6 PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan

Dates

  1. Received 6 August 2013
  2. Accepted 25 September 2013
  3. Published

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Abstract

We show that the angle-dependent Hall measurement is an effective method to determine the current-induced effective fields by investigating MgO/Fe/Ta and MgO/Fe/Pt/Ta multilayer structures. The experimentally obtained Hall resistance under a relatively large dc electrical current is well described by considering two components of current-induced effective fields, which may be related to the spin Hall effect and the Rashba effect. The directions of the effective fields are consistent with and their magnitudes are comparable to those reported previously for similar multilayer structures.

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10.7567/APEX.6.113002