Change in 5 1 V Relaxation Rates due to CDW in CuV 2 S

نویسندگان

  • Takashi Ohno
  • Yutaka Kishimoto
  • Tatsuo Kanashiro
  • Mitsuhiro Miyamoto
  • Toshio Tanaka
  • Kazuo Miyatani
چکیده

The temperature variations of the 6 3 Cu, 6 5 Cu and 5 V N M R spectra and 5 V spin-lattice relaxation rate 1 / T have been measured in a thiospinel CuV 2 S 4 . Drastic changes in the spectra and relaxation rates were observed at the charge density wave (CDW) transition temperature. With decreasing temperature T, 1 /Ti decreases exponentially due to the C D W transition (75 K < T< 90 K). The energy gap made by the C D W formation at 90 K is estimated to be 0.052 eV from an Arrhenius plot of 1 /T j .

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تاریخ انتشار 2013