This article is cited in 5 papers

REVIEWS OF TOPICAL PROBLEMS

Spin wave amplification in magnetically ordered crystals

V. D. Lakhno

Institute of Mathematical Problems of Biology RAS, Pushchino, Moskovskaya obl.

Abstract: The review deals with the macroscopic approach to the s—f exchange interaction of electrons in ordered and disordered magnets. Attention is focused on the exchange amplification of spin waves in a crystal with antiferromagnetic order under electron drift. Various accompanying effects as well as the radioelectric effect due to s—f exchange and magnetoplasma phenomena, are treated. A microscopic theory is constructed to explain the amplification of spin waves in a quantizing magnetic field.

PACS: 75.30.Ds, 72.30.+q

Received: June 1, 1996

DOI: 10.3367/UFNr.0166.199607b.0717

 English version: Physics–Uspekhi, 1996, 39:7, 669–693

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