New calculations of Gilbert damping in ferromagnetic transition metals

被引：1
|
作者：
Umerski, A. [1 ]
Edwards, D. M. [2 ]
机构：
[1] Open Univ, Dept Math & Stat, Milton Keynes MK7 6AA, Bucks, England
[2] Imperial Coll London, Dept Math, London SW7 2BZ, England
来源：
8TH JOINT EUROPEAN MAGNETIC SYMPOSIA (JEMS2016) | 2017年 / 903卷
关键词：
D O I：
10.1088/1742-6596/903/1/012056
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Calculations of the Gilbert damping parameter alpha for bulk Ni are presented as a function of the spin-dependent Lorentzian broadening of the one-electron states. The Kambersky formula for alpha is used, correctly restricted to second order in the spin-orbit parameter so that intra band terms are suppressed, and the spin-dependent broadening is deduced from the recent calculations of electron lifetimes due to electron-phonon scattering by Carva et al. The calculated value of alpha for Ni at room temperature is in reasonable agreement with experiment.
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