NMR study on the metal–insulator transition of CuIr2S4

NMR study on the metal–insulator transition of CuIr2S4

We have investigated the metal-insulator transition of CuIr2S4 using high resolution NMR measurements. The Cu-NMR spectra below TMI are broadened and split into four Cu signals with nuclear quadrupole interactions, confirming the existence of charge ordering of Ir+3 and Ir4+ and the spin dimerizatio...

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Veröffentlicht in:Physica. C, Superconductivity Superconductivity, 2004-08, Vol.408-410, p.822-823
Hauptverfasser: Sasaki, M., Kumagai, K., Kakuyanagi, K., Nagata, S.
Format: Artikel
Sprache:eng
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Zusammenfassung:We have investigated the metal-insulator transition of CuIr2S4 using high resolution NMR measurements. The Cu-NMR spectra below TMI are broadened and split into four Cu signals with nuclear quadrupole interactions, confirming the existence of charge ordering of Ir+3 and Ir4+ and the spin dimerization of Ir4+ spins, as revealed by a recent X- ray study.
ISSN:0921-4534
DOI:10.1016/j.physc.2004.03.146