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Title: Antiferromagentic resonance detected by direct current voltages in MnF{sub 2}/Pt bilayers

We performed coplanar waveguide-based broadband ferromagnetic resonance experiments on the antiferromagnetic insulator MnF{sub 2}, while simultaneously recording the DC voltage arising in a thin platinum film deposited onto the MnF{sub 2}. The antiferromagnetic resonance is clearly reflected in both the transmission through the waveguide as well as the DC voltage in the Pt strip. The DC voltage remains largely unaffected by field reversal and thus presumably stems from microwave rectification and/or heating effects. However, we identify a small magnetic field orientation dependent contribution, compatible with antiferromagnetic spin pumping theory.
Authors:
 [1] ; ;  [1] ;  [2] ; ;  [1] ;  [2] ;  [1] ;  [2] ;  [2]
  1. Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, Garching (Germany)
  2. (Germany)
Publication Date:
OSTI Identifier:
22493056
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 118; Journal Issue: 23; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANTIFERROMAGNETISM; DIRECT CURRENT; ELECTRIC POTENTIAL; FERROMAGNETIC RESONANCE; HIGH-FREQUENCY HEATING; MAGNETIC FIELDS; MANGANESE FLUORIDES; MICROWAVE RADIATION; PLATINUM; THIN FILMS; WAVEGUIDES