Spin-Peierls transition in quasi-one-dimensional crystals
1980; Lebedev Physical Institute; Volume: 23; Issue: 7 Linguagem: Inglês
10.1070/pu1980v023n07abeh005119
ISSN2169-5296
AutoresAleksandr I Buzdin, L. N. Bulaevskiǐ,
Tópico(s)Physics of Superconductivity and Magnetism
ResumoA review is given of theoretical concepts and experimental data concerning the spin-Peierls transition in a one-dimensional spin system with antiferromagnetic exchange interaction (an analog of Peierls instability of a one-dimensional metal). Analysis of experimental data confirms the existence of the spin-Peierls transition in TTF-CuBDT, TTF-AuBDT, and MEM(TCNQ)2 crystals. The magnitude of the spin-phonon interaction in crystals undergoing the spin-Peierls transition at low temperatures is discussed together with the role of fluctuations in transitions of this type. The influence of magnetic fields on spin-Peierls transitions is examined.
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