Doping effect of nonmagnetic impurity on the spin-Peierls-like transition in the quasi-one-dimensional (quasi-1D) spin system of 1-(4′-nitrobenzyl)pyridinium bis(maleonitriledithiolato)nickelate

Xiao Ming Ren, Guang Xiang Liu, Heng Xu, Tomoyuki Akutagawa, Takayoshi Nakamura

研究成果: Article査読

7 被引用数 (Scopus)

抄録

A nonmagnetic compound, [NO2BzPy][Cu(mnt)2] (mnt2- = maleonitriledithiolate; NO2BzPy+ = 1-(4′-nitrobenzyl)pyridinium), is isostructural with [NO2BzPy][Ni(mnt)2], which is a quasi-1D spin system and exhibits a spin-Peierls-like transition with J = 192 K in the gapless state and spin energy gap = 738 K in the dimerization state, respectively. Further, five nonmagnetic impurity doped compounds [NO2BzPy][CuxNi1-x(mnt)2] (x = 0.04-0.74) were prepared, and their crystal structures as well as magnetic properties were investigated. The nonmagnetic doping causes the suppression of the spin transition with an average rate of 139(13) K/percentage of dopant concentration, and the transition collapse is estimated at around x > 0.5.

本文言語English
ページ(範囲)2075-2079
ページ数5
ジャーナルPolyhedron
28
9-10
DOI
出版ステータスPublished - 2009 6月 22
外部発表はい

ASJC Scopus subject areas

  • 物理化学および理論化学
  • 無機化学
  • 材料化学

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