Current-induced effective field in perpendicularly magnetized Ta/CoFeB/MgO wire

T. Suzuki, S. Fukami, N. Ishiwata, Michihiko Yamanouchi, S. Ikeda, N. Kasai, H. Ohno

Research output: Contribution to journalArticle

109 Citations (Scopus)

Abstract

The current-induced effective field in perpendicularly magnetized Ta/CoFeB/MgO wire was investigated. A threshold field decrease of 6.4 kOe/mA was observed by measuring the threshold field of Hall resistance versus the magnetic field curve with various bias currents. The decrease was probably caused by the in-plane effective field, mainly due to the Rashba effect. The effective field of the Ta/CoFeB/MgO wire was smaller and opposite in direction compared to that of Pt/Co/AlOx previously reported.

Original languageEnglish
Article number142505
JournalApplied Physics Letters
Volume98
Issue number14
DOIs
Publication statusPublished - 2011 Apr 4

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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