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Title: Temperature dependence of angular momentum transport across interfaces

Journal Article · · Physical Review B
 [1];  [2];  [2];  [1]
  1. Univ. of Arizona, Tucson, AZ (United States)
  2. Johns Hopkins Univ., Baltimore, MD (United States)

Angular momentum transport in magnetic multilayered structures plays a central role in spintronic physics and devices. The angular momentum currents or spin currents are carried by either quasiparticles such as electrons and magnons, or by macroscopic order parameters such as local magnetization of ferromagnets. Based on the generic interface exchange interaction, we develop here a microscopic theory that describes interfacial spin conductance for various interfaces among nonmagnetic metals, ferromagnetic insulators, and antiferromagnetic insulators. Spin conductance and its temperature dependence are obtained for different spin batteries including spin pumping, temperature gradient, and spin Hall effect.As an application of our theory,we calculate the spin current in a trilayer made of a ferromagnetic insulator, an antiferromagnetic insulator, and a nonmagnetic heavy metal. The calculated results on the temperature dependence of spin conductance quantitatively agree with the existing experiments.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
SC0012670; ECCS-1404542
OSTI ID:
1388939
Alternate ID(s):
OSTI ID: 1290313
Journal Information:
Physical Review B, Vol. 94, Issue 5; Related Information: SHINES partners with University of California, Riverside (lead); Arizona State University; Colorado State University; Johns Hopkins University; University of California Irvine; University of California Los Angeles; University of Texas at Austin; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 30 works
Citation information provided by
Web of Science

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Cited By (10)

Magnon detection using a ferroic collinear multilayer spin valve journal March 2018
Coherent ac spin current transmission across an antiferromagnetic CoO insulator journal November 2019
Giant magneto-spin-Seebeck effect and magnon transfer torques in insulating spin valves journal January 2018
Spin transport across antiferromagnets induced by the spin Seebeck effect journal March 2018
Pure spin current in antiferromagnetic insulators journal September 2019
Influence of the thickness of an antiferromagnetic IrMn layer on the static and dynamic magnetization of weakly coupled CoFeB/IrMn/CoFeB trilayers journal January 2018
Spin transport across antiferromagnets induced by the spin Seebeck effect text January 2018
Magnon detection using a ferroic collinear multilayer spin valve text January 2018
Spin transport across antiferromagnets induced by the spin Seebeck effect text January 2018
Coherent ac spin current transmission across an antiferromagnetic CoO insulator text January 2019