4.6 Article

Magnetotransport measurements of current induced effective fields in Ta/CoFeB/MgO

Journal

APPLIED PHYSICS LETTERS
Volume 103, Issue 26, Pages -

Publisher

AMER INST PHYSICS
DOI: 10.1063/1.4859656

Keywords

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Funding

  1. FIRST program from JSPS
  2. Research and Development for Next-Generation Information Technology of MEXT
  3. Excellent Graduate Schools of MEXT

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We evaluate current-induced effective magnetic fields in perpendicularly magnetized Ta/CoFeB/MgO structures from the external magnetic field angle dependence of the Hall resistance. We confirm the presence of two components of effective fields. The dependence of their magnitudes on Ta thickness implies that both components are related to the spin current in Ta layer generated by the spin Hall effect. (C) 2013 AIP Publishing LLC.

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