Novel aspects of spin-polarized transport and spin dynamics

Details Novel aspects of spin-polarized transport and spin dynamics Novel aspects of spin-polarized transport and spin dynamics

2001-12-19

arxiv.org/abs/cond-mat/0112368v1

J. Supercond. 15, 5 (2002)

Physics

Condensed Matter

Spintronics 2001 http://www.physics.umd.edu/spevents/spintronics2001 7 pages, to appear in J. Supercond

Scientific paper

There is a renewed interest to study spin-polarized transport and spin dynamics in various electronic materials. The motivation to examine the spin degrees of freedom (mostly in electrons, but also in holes and nuclei) comes from various sources: ranging from novel applications which are either not feasible or ineffective with conventional electronics, to using spin-dependent phenomena to explore the fundamental properties of solid state systems. Taken in a broader context, term spintronics is addressing various aspects of these efforts and stimulating new interactions between different subfields of condensed matter physics. Recent advances in material fabrication made it possible to introduce the nonequilibrium spin in novel class of systems, including ferromagnetic semiconductors, high temperature superconductors and carbon nanotubes--which leads to a question of how such a spin could be utilized. For this purpose it is important to extend the understanding of spin-polarized transport and spin dynamics to consider inhomogeneous systems, various heterostructures, and the role of interfaces. This article presents some views on novel aspects of spin-polarized transport and spin dynamics (referring also to the topics which were addressed at the conference Spintronics 2001) and suggests possible future research directions.

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