Evidence for the π-d Interaction Comparing Magnetoresistance in (EDT-DSDTFVO)2 X, X=FeCl4, GaCl4 |
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Authors: | Lin Li Syuma Yasuzuka Yufeng Weng Keiichi Yokogawa Tsutomu Fujimoto Toyonari Sugimoto Hideki Fujiwara Toshiki Hayashi Takashi Hiraoka Keizo Murata |
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Affiliation: | (1) Division of Physics, Hokkaido University, 060-0810 Sapporo, Japan;(2) IMR, Tohoku University, 980-8577 Sendai, Japan;(3) Department of Material Science, University of Hyogo, 678-1297 Kamigohori, Japan |
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Abstract: | Hall resistance and magnetic torque measurements have been carried out in the field-induced spin-density-wave (FISDW) phase of deuterated (TMTSF)2ClO4 for various cooling rates through the anion ordering temperature. We have found that the Hall resistance in the intermediate cooled state shows a phase transition from the non-quantized Hall phase to the quantized Hall phase (n=1) with hysteresis. We have also found that the magnetic torque in the non-quantized Hall phase rapidly decreases with increasing cooling rate. These results suggest that there is a new phase transition from the non-quantized Hall phase to the quantized Hall phase in (TMTSF)2ClO4. |
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