Magnetic Susceptibility of Quasi-One-Dimensional Compound<i>α'-<b><i>N</i><i>a</i><i>V</i><sub>2</sub><i>O</i><sub>5</sub></b></i>–Possible Spin-Peierls Compound with High Critical Temperature of 34 K–

DOI Web Site BIBCODE 被引用文献55件 参考文献11件
  • Isobe Masahiko
    Institute for Solid State Physics, The University of Tokyo, Roppongi 7–22–1, Minato–ku, Tokyo 106
  • Ueda Yutaka
    Institute for Solid State Physics, The University of Tokyo, Roppongi 7–22–1, Minato–ku, Tokyo 106

書誌事項

タイトル別名
  • Magnetic Susceptibility of Quasi-One-Dimensional Compound .ALPHA.'-NaV2O5. Possible Spin-Peierls Compound with High Critical Temperature of 34K.
公開日
1996
DOI
  • 10.1143/jpsj.65.1178
公開者
一般社団法人 日本物理学会

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説明

Stoichiometric powder samples of α '-NaV2O5 were synthesized and the magnetic susceptibility was measured in the temperature range from 2, K to 700, K. The magnetic susceptibility has a good fit to the equation for an S=1/2 antiferromagnetic Heisenberg linear chain with J/kB=280, K and g=2 above 34, K. Below 34, K the magnetic susceptibility rapidly decreases with decreasing temperature to a constant value of 1.49× 10-4, emu/V4+-mol which is reasonable for spin-singlet V4+--V4+ pairs. This rapid reduction of the spin susceptibility below 34, K suggests the existence of a spin-Peierls transition. α '-NaV2O5 is a possible spin-Peierls compound with the highest critical temperature yet observed.

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