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2000

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April

  

Reviews of topical problems


Influence of quantum fluctuations on the magnetic properties of quasi-one-dimensional triangular antiferromagnets


Institute of Spectroscopy, Russian Academy of Sciences, ul. Fizicheskaya 5, Troitsk, Moscow, 108840, Russian Federation

A review is presented of the experimental work on the influence of quantum fluctuations on the magnetization and the mean spin of magnetic sublattices in quasi-one-dimensional triangular antiferromagnets. The principal results in this area are the strong magnetic-field dependence of magnetic sublattice mean spins; anisotropy of mean spin values in magnetically nonequivalent antiferromagnetic chains; the reduction of magnetization compared to the classical spin case; the nonlinear growth of the parallel magnetic susceptibility; a residual magnetization anisotropy at high fields. The results obtained are explained based on the spin-wave theory of quantum fluctuations in antiferromagnets. A new magnetic phase was observed in CsMnI3 for H \parallel C6 and shown to be due to the anisotropy of the mean spins of the sublattices.

Fulltext pdf (663 KB)
Fulltext is also available at DOI: 10.1070/PU2000v043n04ABEH000636
PACS: 75.25.+z, 75.30.Cr, 76.60.-d (all)
DOI: 10.1070/PU2000v043n04ABEH000636
URL: https://ufn.ru/en/articles/2000/4/c/
000087162200003
Citation: Dumesh B S "Influence of quantum fluctuations on the magnetic properties of quasi-one-dimensional triangular antiferromagnets" Phys. Usp. 43 365–380 (2000)
BibTex BibNote ® (generic)BibNote ® (RIS)MedlineRefWorks
%0 Journal Article
%T Influence of quantum fluctuations on the magnetic properties of quasi-one-dimensional triangular antiferromagnets
%A B. S. Dumesh
%I Physics-Uspekhi
%D 2000
%J Phys. Usp.
%V 43
%N 4
%P 365-380
%U https://ufn.ru/en/articles/2000/4/c/
%U https://doi.org/10.1070/PU2000v043n04ABEH000636

Оригинал: Думеш Б С «Влияние квантовых флуктуаций на магнитные свойства квазиодномерных треугольных антиферромагнетиков» УФН 170 403–418 (2000); DOI: 10.3367/UFNr.0170.200004c.0403

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