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Title: Comparative determination of Y 3Fe 5O 12/Pt interfacial spin mixing conductance by spin-Hall magnetoresistance and spin pumping

In this paper, we studied spin Hall magnetoresistance (SMR) in a Y 3Fe 5O 12/Pt bilayer at room temperature. The SMR loops precisely follow the magnetization hysteresis loops in both the in-plane and out-of-plane configurations. SMR up to 0.09% is observed, from which an interfacial spin mixing conductance g = (9.0 ± 2.6) × 10 18 m -2 is extracted. In addition, we measured ferromagnetic resonance spin pumping induced damping enhancement in the bilayer, which gives g = (6.9 ± 0.6) × 10 18 m -2. Finally, the agreement in the values of g obtained from two reciprocal processes within uncertainty demonstrates the validity of the model for analyzing interfacial spin transmission.
Authors:
 [1] ; ORCiD logo [1] ;  [1] ;  [1]
  1. The Ohio State Univ., Columbus, OH (United States). Dept. of Physics
Publication Date:
Grant/Contract Number:
SC0001304; FG02-03ER46054; DMR-1420451
Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 110; Journal Issue: 6; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Research Org:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; magnetic hysteresis; atomic force microscopy; X-ray diffraction; thin films; spin polarized transport; ferromagnetic materials; epitaxy; magnetoresistance; magnetic fields
OSTI Identifier:
1465978
Alternate Identifier(s):
OSTI ID: 1361772