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Ab InitioCalculation of the Gilbert Damping Parameter via the Linear Response Formalism
2011
Physical Review Letters
A Kubo-Greenwood-like equation for the Gilbert damping parameter α is presented that is based on the linear response formalism. Its implementation using the fully relativistic Korringa-Kohn-Rostoker (KKR) band structure method in combination with Coherent Potential Approximation (CPA) alloy theory allows it to be applied to a wide range of situations. This is demonstrated with results obtained for the bcc alloy system Fe_xCo_1-x as well as for a series of alloys of permalloy with 5d transition
doi:10.1103/physrevlett.107.066603
pmid:21902352
fatcat:zdxlrkymoref5fegdbsnmsuaba