Electrical detection of spin accumulation and spin precession at room temperature in metallic spin valves

Details Electrical detection of spin accumulation and spin precession at room temperature in metallic spin valves Electrical detection of spin accumulation and spin precession at room temperature in metallic spin valves

2002-07-29

arxiv.org/abs/cond-mat/0207671v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 3 figures, revtex, submitted to APL

Scientific paper

10.1063/1.1532753

We have fabricated a multi terminal lateral mesoscopic metallic spin valve demonstrating spin precession at room temperature, using tunnel barriers in combination with metallic ferromagnetic electrodes as spin injector and detector. The observed modulation of the output signal due to the spin precession is discussed and explained in terms of a time of flight experiment of electrons in a diffusive conductor. The obtained spin relaxation length lambda_{sf}=500 nm in an Al strip will make possible detailed studies of spin dependent transport phenomena and allow to explore the possibilities of the electron spin for new electronic applications at RT.

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