Magnetic excitation spectra of NaV₂O₅

1998/06/22 by Kosta Ladavac, K. Ladavac, M.J. Konstantinović +18
Chemistry · Materials Science · Physics and Astronomy · #Condensed Matter (cond-mat) #FOS: Physical sciences #Glass properties and applications #Spectroscopy and Laser Applications #Transition Metal Oxide Nanomaterials #cond-mat

paper · pdf · doi:10.48550/arxiv.cond-mat/9806258

8 pages, Latex, uses iopfts.sty, 4 eps figures, submitted to J. Phys. Cond. Matt., typos in abstract corrected

openalex publication_date 1998/06/22 · arxiv created 1998/06/25 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present low temperature Raman spectra of NaV₂O₅ single crystal. The assignation of the observed modes is done on the basis of Monte Carlo calculation of excited states of Heisenberg dimerized Hamiltonian, without frustration. We found a good agreement between measured and calculated magnetic excitations for δ=0.048 and J=452 K. The singlet-triplet, singlet-singlet excitations as well as two-magnon mode are observed to be at 66, 127 and 132 cm^-1.

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