Intrinsic damping of spin waves by spin current in conducting two-dimensional systems - Archive ouverte HAL
Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2010

Intrinsic damping of spin waves by spin current in conducting two-dimensional systems

Résumé

Angle-resolved magneto-Raman scattering has been performed on spin-polarized two-dimensional electron gas embedded in Cd(1-x)Mn(x)Te quantum wells to explore the intrinsic damping of propagating spin-wave modes with in plane momentum q. The damping rate eta follows a quadratic law eta=eta(0)+eta(2)q(2) due to losses in the spin current driven by the magnetization in qualitative agreement with Phys. Rev. B 78, 020404(R) (2008). As a consequence, the propagation length of a spin wave in a conducting system has an intrinsic maximum of importance for spin-wave-based spintronics.
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Dates et versions

hal-01229219 , version 1 (01-06-2016)

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J. Gomez, Florent Pérez, E. M. Hankiewicz, Bernard Jusserand, G. Karczewski, et al.. Intrinsic damping of spin waves by spin current in conducting two-dimensional systems. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2010, 81 (10), pp.100403(R). ⟨10.1103/PhysRevB.81.100403⟩. ⟨hal-01229219⟩
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