| Issue |
Europhys. Lett.
Volume 35, Number 8, September II 1996
|
|
|---|---|---|
| Page(s) | 615 - 620 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1996-00160-3 | |
| Published online | 01 September 2002 | |
Observation and characteristics of the longitudinal resonance mode in ferromagnets with random anisotropy
Laboratoire de Magnetisme Louis Néel, CNRS, BP 166,
38042 Grenoble Cedex 9, France
Received:
4
March
1996
Accepted:
25
July
1996
We report the first experimental observation of the longitudinal resonance mode whose existence
for ferromagnets with random anisotropy was predicted by theoretical computations. It could be
detected in 
(RE = Pr, Nd, Tb and Dy) amorphous thin films,
when these films exhibit an in-plane uniaxial anisotropy field Hk. Hk imposes the
"ferromagnet with wandering axis” regime. The formal experimental identification of the
longitudinal nature of the mode, and its main properties, resonance field, resonance linewidth,
are presented and compared with theoretical predictions.
PACS: 76.90.+d – Other topics in magnetic resonances and relaxations / 76.50.+g – Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance / 75.50.Kj – Amorphous and nanocrystalline magnetic materials, quasicrystals
© EDP Sciences, 1996
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