Enhanced gilbert damping in thin ferromagnetic films.

By Y. Tserkovnyak, A. Brataas, G. Bauer. Physical Review Letters, 2001

1,375 citations recorded by the source corpus.

The precession of the magnetization of a ferromagnet is shown to transfer spins into adjacent normal metal layers. This "pumping" of spins slows down the precession corresponding to an enhanced Gilbert damping constant in the Landau-Lifshitz equation. The damping is expressed in terms of the scattering matrix of the ferromagnetic layer, which is accessible to model and first-principles calculations. Our estimates for permalloy thin films explain the trends observed in recent experiments.

Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics

View Paper: https://www.semanticscholar.org/paper/dad321667e6ebb07465006d60fcf98a6d4ff053a

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In Atomic and Molecular Physics, and Optics

In Condensed Matter Physics

Citations in the corpus

Transmission of electrical signals by spin-wave interconversion in a magnetic insulator (2010, methodology): “In the presence of microwave field, we assume a uniform precession of aligned localized spins, in which case S i is replaced by the magnetization M using the relation 36 , and rewrite equation (S11) as 17,18,34,35”
Interface-Induced Phenomena in Magnetism (2016, positive): “The spin-pumping spin-current js can be expressed [Tserkovnyak et al., 2002; Tserkovnyak et al., 2005; Mosendz et al., 2010a] in terms of the spin-mixing conductance g↑,↓:”
Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems (2018, background): “This effect is the reciprocal to spin pumping, where the field-excited precessing magnetization pumps a spin current in the adjacent NM (Saitoh et al., 2006; Tserkovnyak et al., 2002a).”
Nonlocal magnetization dynamics in ferromagnetic heterostructures (2004, methodology): “It is instructive to scrutinize the energy and spin– angular-momentum conservation laws of the combined F|N system in the laboratory frame of reference (Tserkovnyak et al., 2002b).”