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This article is cited in 51 scientific papers (total in 51 papers)
REVIEWS OF TOPICAL PROBLEMS
Magnetic order and spin fluctuations in low-dimensional insulating systems
A. A. Kataninab, V. Yu. Irkhina a Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
b Max-Planck-Institut für Festkörperforschung
Abstract:
The current theoretical and experimental situations are reviewed for low-dimensional insulating systems with a low magnetic transition temperature $T_M$ and pronounced short-range magnetic order above this temperature. Both the standard and self-consistent spin-wave theories are shown to be insufficient to quantitatively describe the experimental data on these systems. Field-theoretical approaches taking into account the contribution of the spin-fluctuation excitations (neglected in the spin-wave theories) to the thermodynamic properties of ferro- and antiferromagnets are discussed.
Received: December 13, 2006
Citation:
A. A. Katanin, V. Yu. Irkhin, “Magnetic order and spin fluctuations in low-dimensional insulating systems”, UFN, 177:6 (2007), 639–662; Phys. Usp., 50:6 (2007), 613–635
Linking options:
https://www.mathnet.ru/eng/ufn475 https://www.mathnet.ru/eng/ufn/v177/i6/p639
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