P.N. Lebedev Physical Institute 75years

Toroidal ordering in crystals

Lebedev Physical Institute, Russian Academy of Sciences, Leninsky prosp. 53, Moscow, 119991, Russian Federation

Phase transitions to ordered states, which correspond to the toroidal family of multipoles known in electrodynamics, are discussed. The ordering of toroidal moments may either occur simultaneously with their formation (as in superconductivity) or may follow it (at lower temperatures). In addition to electrodynamic toroidal moments corresponding to either poloidal charge currents or a spin configuration, a toroidal state corresponding to poloidal spin currents is possible.

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PACS: 01.30.Bb, 71.30.+h, 75.10.−b, 75.80.+q (all)
DOI: 10.3367/UFNe.0179.200911d.1175
Citation: Kopaev Yu V "Toroidal ordering in crystals" Phys. Usp. 52 1111–1125 (2009)
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:    «  » 179 1175–1190 (2009); DOI: 10.3367/UFNr.0179.200911d.1175

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