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

2011149 citationsJournal Article

Authors

Takahiro Suzuki · Renesas Electronics (Japan)

Shunsuke Fukami · NEC (Japan)

N. Ishiwata · NEC (Japan)

Michihiko Yamanouchi · Spintronics Research Network of Japan

Shoji Ikeda · Spintronics Research Network of Japan

N. Kasai · NEC (Japan)

Hideo Ohno ·

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.

Topics & Keywords

Magnetic properties of thin films ZnO doping and properties Physics of Superconductivity and Magnetism

UN Sustainable Development Goals

Affordable and clean energy

Publication Details

Published in: Applied Physics Letters

Volume 98, Issue 14

DOI: 10.1063/1.3579155

Field-Weighted Citation Impact: 9.82