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 (all) DOI: 10.1070/PU1996v039n07ABEH000155 URL: https://ufn.ru/en/articles/1996/7/b/ A1996VC59800002 Citation: Lakhno V D "Spin wave amplification in magnetically ordered crystals" Phys. Usp. 39 669–693 (1996) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks Оригинал: Лахно В Д «Усиление спиновых волн в магнитных кристаллах» УФН 166 717–742 (1996); DOI: 10.3367/UFNr.0166.199607b.0717