Magnetic ordering in the organic conductor (DIETSe)2GaCl4

77Se NMR signals were observed in the metallic and insulating states of the quasi-one-dimensional organic compound (DIETSe)2GaCl4. The 77Se NMR spectra at low temperatures are broadened, indicating the presence of magnetic ordering. The shape of the spectra in the magnetically ordered state is chara...

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Bibliographic Details
Published in:Journal of physics. Conference series 2009-03, Vol.150 (4), p.042124
Main Authors: Michioka, C, Itoh, Y, Yoshimura, K, Furushima, Y, Maesato, M, Saito, G, Shirahata, T, Kibune, M, Imakubo, T
Format: Article
Language:English
Subjects:
Conductors
Insulators
Low temperature
Metal-insulator transition
NMR
Nuclear magnetic resonance
Nuclear spin
Organic compounds
Physics
Spin density waves
Spin-lattice relaxation
Temperature dependence
Transition temperature
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Summary:77Se NMR signals were observed in the metallic and insulating states of the quasi-one-dimensional organic compound (DIETSe)2GaCl4. The 77Se NMR spectra at low temperatures are broadened, indicating the presence of magnetic ordering. The shape of the spectra in the magnetically ordered state is characteristic of the spin density wave (SDW) ordering. The divergent behavior of the temperature dependence of the nuclear spin-lattice relaxation rate suggests that the SDW ordering occurs at about 7 K which is lower than the metal-insulator transition temperature of 12 K.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/150/4/042124