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Title: Spin-transfer torque induced spin waves in antiferromagnetic insulators

Abstract

We explore the possibility of exciting spin waves in insulating antiferromagnetic films by injecting spin current at the surface. We analyze both magnetically compensated and uncompensated interfaces. We find that the spin current induced spin-transfer torque can excite spin waves in insulating antiferromagnetic materials and that the chirality of the excited spin wave is determined by the polarization of the injected spin current. Furthermore, the presence of magnetic surface anisotropy can greatly increase the accessibility of these excitations.

Authors:
 [1];  [2];  [3];  [1];  [2]
  1. Carnegie Mellon Univ., Pittsburgh, PA (United States)
  2. Fudan Univ., Shanghai (China). State Key Laboratory of Surface Physics and Department of Physics
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1336594
Grant/Contract Number:
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
New Journal of Physics
Additional Journal Information:
Journal Volume: 17; Journal ID: ISSN 1367-2630
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
spintronics; antiferromagnetism; magnonics; magnon; antiferromagnet; surface; spin-transfer torque; HEISENBERG-ANTIFERROMAGNET; GRAPHENE; NEUTRON

Citation Formats

Daniels, Matthew W., Guo, Wei, Stocks, George Malcolm, Xiao, Di, and Xiao, Jiang. Spin-transfer torque induced spin waves in antiferromagnetic insulators. United States: N. p., 2015. Web. doi:10.1088/1367-2630/17/10/103039.
Daniels, Matthew W., Guo, Wei, Stocks, George Malcolm, Xiao, Di, & Xiao, Jiang. Spin-transfer torque induced spin waves in antiferromagnetic insulators. United States. doi:10.1088/1367-2630/17/10/103039.
Daniels, Matthew W., Guo, Wei, Stocks, George Malcolm, Xiao, Di, and Xiao, Jiang. Thu . "Spin-transfer torque induced spin waves in antiferromagnetic insulators". United States. doi:10.1088/1367-2630/17/10/103039. https://www.osti.gov/servlets/purl/1336594.
@article{osti_1336594,
title = {Spin-transfer torque induced spin waves in antiferromagnetic insulators},
author = {Daniels, Matthew W. and Guo, Wei and Stocks, George Malcolm and Xiao, Di and Xiao, Jiang},
abstractNote = {We explore the possibility of exciting spin waves in insulating antiferromagnetic films by injecting spin current at the surface. We analyze both magnetically compensated and uncompensated interfaces. We find that the spin current induced spin-transfer torque can excite spin waves in insulating antiferromagnetic materials and that the chirality of the excited spin wave is determined by the polarization of the injected spin current. Furthermore, the presence of magnetic surface anisotropy can greatly increase the accessibility of these excitations.},
doi = {10.1088/1367-2630/17/10/103039},
journal = {New Journal of Physics},
number = ,
volume = 17,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2015},
month = {Thu Jan 01 00:00:00 EST 2015}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 5 works
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