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Title: Spin transport through the metallic antiferromagnet FeMn

Journal Article · · Physical Review B
 [1];  [2];  [3];  [4];  [3];  [5];  [3]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Illinois Inst. of Technology, Chicago, IL (United States). Dept. of Physics
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Oakland Univ., Rochester, MI (United States). Dept. of Physics
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Northwestern Univ., Evanston, IL (United States). Dept. of Physics and Astronomy
  5. Oakland Univ., Rochester, MI (United States). Dept. of Physics

Here, we investigate spin transport through metallic antiferromagnets using measurements based on spin pumping combined with inverse spin Hall effects in Ni80Fe20/FeMn/W trilayers. The relatively large magnitude and opposite sign of spin Hall effects in W compared to FeMn enable an unambiguous detection of spin currents transmitted through the entire FeMn layer thickness. By using this approach we can detect two distinctively different spin transport regimes, which we associate with electronic and magnonic spin currents, respectively. Furthermore, the latter can extend to relatively large distances (approximate to 9 nm) and is enhanced when the antiferromagnetic ordering temperature is close to the measurement temperature.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1352642
Alternate ID(s):
OSTI ID: 1329341
Journal Information:
Physical Review B, Vol. 94, Issue 14; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 32 works
Citation information provided by
Web of Science

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Cited By (12)

Spin pumping during the antiferromagnetic–ferromagnetic phase transition of iron–rhodium journal January 2020
Antiferromagnetic spin textures and dynamics journal March 2018
Pure spin current manipulation in antiferromagnetically exchange coupled heterostructures journal March 2018
Electrical detection of multiple ferromagnetic resonance modes in interlayer exchange coupled Fe 20 Ni 80 /Ru/Fe 20 Ni 80 multilayers journal December 2018
Spin transport across antiferromagnets induced by the spin Seebeck effect journal March 2018
Competition between Electronic and Magnonic Spin Currents in Metallic Antiferromagnets journal November 2019
Spin Pumping and Thermal Effects in Single-Crystalline Fe / Pt Bilayers at the Nonresonant Condition journal July 2017
Spin pumping into superconductors: A new probe of spin dynamics in a superconducting thin film journal July 2017
Unraveling the influence of electronic and magnonic spin-current injection near the magnetic ordering transition of IrMn metallic antiferromagnets journal September 2018
Spin transport across antiferromagnets induced by the spin Seebeck effect text January 2018
Spin transport across antiferromagnets induced by the spin Seebeck effect text January 2018
Unraveling the influence of electronic and magnonic spin current injection near the magnetic ordering transition of IrMn metallic antiferromagnets text January 2018

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