This article is cited in 54 papers

REVIEWS OF TOPICAL PROBLEMS

Spintronics: manganite-based magnetic tunnel structures

N. V. Volkov

Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences

Abstract: A topical and highly promising aspect of the field of spintronics is the physics involved in the flow of a spin-polarized current through magnetic tunnel structures. This review focuses on manganite-based structures, which are appealing for their high Curie temperature, highly spin-polarized conduction electrons, high chemical stability, and well-developed fabrication technology. Particular emphasis is placed on some novel approaches to studying the tunnel structures, including the use of planar geometry and the application of combined external factors (microwave and optical radiation) to investigate spin-polarized transport.

Keywords: spintronics, magnetic tunnel junction, spin-dependent transport, manganites, tunnel magnetoresistance, microwave detection, photoelectric effect.

PACS: 72.25.-b, 75.76.+j, 85.75.-d

Received: May 21, 2011
Revised: August 30, 2011
Accepted: September 6, 2011

DOI: 10.3367/UFNr.0182.201203b.0263

 English version: Physics–Uspekhi, 2012, 55:3, 250–269

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