skip to main content

SciTech ConnectSciTech Connect

Title: Anti-damping spin transfer torque through epitaxial nickel oxide

We prepare the high quality epitaxial MgO(001)[100]/Pt(001)[100]/NiO(001)[100]/FeNi/SiO{sub 2} films to investigate the spin transport in the NiO antiferromagnetic insulator. The ferromagnetic resonance measurements of the FeNi under a spin current injection from the Pt by the spin Hall effect revealed the change of the ferromagnetic resonance linewidth depending on the amount of the spin current injection. The results can be interpreted that there is an angular momentum transfer through the NiO. A high efficient angular momentum transfer we observed in the epitaxial NiO can be attributed to the well-defined orientation of the antiferromagnetic moments and the spin quantization axis of the injected spin current.
Authors:
; ; ; ;  [1] ; ;  [2] ;  [3]
  1. Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011 (Japan)
  2. Department of Physics and Astronomy, University of California, Los Angeles, California 90095 (United States)
  3. Research Center for Low Temperature and Materials Sciences, Kyoto University, Kyoto 606-8501 (Japan)
Publication Date:
OSTI Identifier:
22398928
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 16; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANGULAR MOMENTUM TRANSFER; ANTIFERROMAGNETISM; EPITAXY; FERROMAGNETIC RESONANCE; FILMS; HALL EFFECT; INTERMETALLIC COMPOUNDS; IRON; MAGNESIUM OXIDES; NICKEL; NICKEL OXIDES; PLATINUM; QUANTIZATION; SILICON OXIDES; SPIN; TORQUE