NMR Evidence for Antiferromagnetic Transition in the Single-Component Molecular Conductor, [Au(tmdt)_{2}] at 110 K

Y. Hara; K. Miyagawa; K. Kanoda; M. Shimamura; A. Kobayashi; H. Kobayashi

doi:10.1143/JPSJ.77.053706

NMR Evidence for Antiferromagnetic Transition in the Single-Component Molecular Conductor, [Au(tmdt)_{2}] at 110 K

Strongly Correlated Electrons 2009-11-13 v3

Authors: Y. Hara , K. Miyagawa , K. Kanoda , M. Shimamura , A. Kobayashi , H. Kobayashi

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Abstract

We present the results of a ^{1}H NMR study of the single-component molecular conductor, [Au(tmdt)_{2}]. A steep increase in the NMR line width and a peak formation of the nuclear spin-lattice relaxation rate, 1/T_{1}, were observed at around 110 K. This behavior provides clear and microscopic evidences for a magnetic phase transition at considerably high temperature among organic conductors. The observed variation in 1/T_{1} with respect to temperature indicates the highly correlated nature of the metallic phase.

Keywords

single-component molecular conductor antiferromagnetic transition nmr spin-lattice relaxation rate organic conductor magnetic phase transition

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@article{arxiv.0707.2615,
  title  = {NMR Evidence for Antiferromagnetic Transition in the Single-Component Molecular Conductor, [Au(tmdt)_{2}] at 110 K},
  author = {Y. Hara and K. Miyagawa and K. Kanoda and M. Shimamura and A. Kobayashi and H. Kobayashi},
  journal= {arXiv preprint arXiv:0707.2615},
  year   = {2009}
}

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5pages, 6figures to be published in J. Phys. Soc. Jpn

NMR Evidence for Antiferromagnetic Transition in the Single-Component Molecular Conductor, [Au(tmdt)_{2}] at 110 K

Abstract

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