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

Journal Article · · New Journal of Physics
 [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)

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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1336594
Journal Information:
New Journal of Physics, Vol. 17; ISSN 1367-2630
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

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Cited By (14)

Current-controlled propagation of spin waves in antiparallel, coupled domains journal April 2019
Antiferromagnetic THz-frequency Josephson-like Oscillator Driven by Spin Current journal March 2017
Negative spin Hall magnetoresistance of Pt on the bulk easy-plane antiferromagnet NiO journal July 2017
FMR-driven spin pumping in Y 3 Fe 5 O 12 -based structures journal May 2018
Spin Seebeck effect in paramagnets and antiferromagnets at elevated temperatures journal August 2019
Nonabelian magnonics in antiferromagnets journal October 2018
Topological spin Hall effects and tunable skyrmion Hall effects in uniaxial antiferromagnetic insulators journal June 2019
Terahertz Antiferromagnetic Spin Hall Nano-Oscillator journal May 2016
Spin-Wave Chirality and Its Manifestations in Antiferromagnets journal October 2017
Spin Seebeck Effect from Antiferromagnetic Magnons and Critical Spin Fluctuations in Epitaxial FeF 2 Films journal May 2019
Antiferromagnetic spintronics journal February 2018
Antiferromagnetic THz-frequency Josephson-like Oscillator Driven by Spin Current preprint January 2016
Topological spin Hall effects and tunable skyrmion Hall effects in uniaxial antiferromagnetic insulators text January 2019
Spin Seebeck effect in paramagnets and antiferromagnets at elevated temperatures text January 2019