INVESTIGADORES
GOMEZ Javier Enrique
artículos
Título:
Intrinsic damping of spin waves by spin current in conducting two-dimensional systems
Autor/es:
J. GÓMEZ; F. PEREZ; E. M. HANKIEWICZ; B. JUSSERAND; G. KARCZEWSKI; T. WOJTOWICZ
Revista:
PHYSICAL REVIEW B - CONDENSED MATTER AND MATERIALS PHYSICS
Editorial:
The American Physical Society
Referencias:
Año: 2010 vol. 81 p. 100403 - 100407
ISSN:
0163-1829
Resumen:
Angle-resolved magneto-Raman scattering has been performed on spin-polarized two-dimensional electron gas embedded in Cd1−xMnxTe quantum wells to explore the intrinsic damping of propagating spin-wave modes with in plane momentum q. The damping rate η follows a quadratic law η=η0+η2q2 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.
