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Ferromagnetic resonance in nickel around the curie temperature

Authors
Journal
Journal of Physics and Chemistry of Solids
0022-3697
Publisher
Elsevier
Publication Date
Volume
42
Issue
8
Identifiers
DOI: 10.1016/0022-3697(81)90121-9
Disciplines
  • Physics

Abstract

Abstract The ferromagnetic resonance behaviour of nickel up to and above T c is investigated. It is shown that up to the Curie point, which is 357.8°C, the resonance can be described by the Gilbert equation with the parameters g = 2.20 ±0.02 and λ = (4.0±0.5) × 10 9 s −1. Above T c , however, it is an open question if the Gilbert equation describes the resonance adequately. No sign of a decreasing linewidth above 365°C is seen. On the contrary, the resonance broadens rapidly and fades away. The experiment is performed in a new way with the cavity kept at room temperature and the temperature of the sample is monitored during the run of the spectrum.

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