Infrared study of spin-Peierls compound alpha'-NaV2O5

D. Smirnov; J. Leotin; P. Millet; J. Jegoudez; A. Revcolevschi

doi:10.1016/S0921-4526(98)00633-4

Infrared study of spin-Peierls compound alpha'-NaV2O5

Strongly Correlated Electrons 2009-10-31 v1 Materials Science

Authors: D. Smirnov , J. Leotin , P. Millet , J. Jegoudez , A. Revcolevschi

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Abstract

Infrared reflectance of alpha'-NaV2O5 single crystals in the frequency range from 50 cm-1 to 10000 cm-1 was studied for a, b and c-polarisations. In addition to phonon modes identification, for the a-polarised spectrum a broad continuum absorption in the range of 1D magnetic excitation energies was found. The strong near-IR absorption band at 0.8 eV shows a strong anisotropy with vanishing intensity in c-polarisation. Activation of new phonons due to the lattice dimerisation were detected below 35K as well as pretransitional structural fluctuations up to 65K.

Keywords

spin-Peierls compound alpha'-NaV2O5 infrared reflectance phonon modes magnetic excitations lattice dimerization

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@article{arxiv.cond-mat/9808006,
  title  = {Infrared study of spin-Peierls compound alpha'-NaV2O5},
  author = {D. Smirnov and J. Leotin and P. Millet and J. Jegoudez and A. Revcolevschi},
  journal= {arXiv preprint arXiv:cond-mat/9808006},
  year   = {2009}
}

Comments

3 pages, 2 figures, 1 table. Contributed paper for the SCES'98 (15-18 July 1998, Paris). To be published in Physica B

Infrared study of spin-Peierls compound alpha'-NaV2O5

Abstract

Keywords

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