Reviews of topical problems

Spin wave acoustics of antiferromagnetic structures as magnetoacoustic metamaterials

 a,  b,  a
a Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, ul. Mokhovaya 11, kor. 7, Moscow, 125009, Russian Federation
b A.A. Galkin Donetsk Physical-Technical Institute, National Academy of Sciences of Ukraine, ul. R. Lyuksemburg 72, Donetsk, 340114, Ukraine

This is a review of research results on conditions under which spatially restricted low-temperature antiferromagnets and their composites can be considered as a special class of acoustic magnetic metamaterials (magnetoacoustic metamaterials). In these, the dynamic magnetoacoustic interaction produces a number of effects that are acoustic analogs of polariton effects and which are currently intensively studied in nonmagnetic acoustic metamaterials. It is shown that the elastostatic approach to the analysis of the magnetoelastic dynamics of spatially restricted compensated magnetics is an effective tool in the search for new types of resonance acoustic anomalies, part of which are typical of the magnetostatic spin wave physics (elastostatic bulk and surface spin waves, nonuniform spin—spin resonances with their participation, etc.).

Text can be downloaded in Russian. English translation is available on IOP Science.
PACS: 42.25.Bs, 43.20.+g, 43.35.+d, 43.35.Rw, 43.40.+s, 75.50.Ee, 75.70.−i (all)
DOI: 10.3367/UFNe.0181.201106b.0595
Citation: Gulyaev Yu V, Tarasenko S V, Shavrov V G "Spin wave acoustics of antiferromagnetic structures as magnetoacoustic metamaterials" Phys. Usp. 54 573–604 (2011)
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Received: 16th, August 2010, revised: 22nd, November 2010, 25th, November 2010

Оригинал: Гуляев Ю В, Тарасенко С В, Шавров В Г «Спин-волновая акустика антиферромагнитных структур как магнитоакустических метаматериалов» УФН 181 595–626 (2011); DOI: 10.3367/UFNr.0181.201106b.0595

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