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Low temperature physical properties of the organic conductor, (Dimet)2i3 after thermal treatment |
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| Authors: | Yoshino H. Murata K. Yamamura Y. Tsuji T. Nishikawa H. Kikuchi K. Ikemoto I. |
| Affiliation: | (1) Department of Material Science, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka-shi 558-8585, Japan;(2) Center for New Materials, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Tatsunokuchi-cho, Nomi-gun, Ishikawa 923-1292, Japan;(3) Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, 1-1 Minamiosawa, Hachioji-shi, Tokyo 192-0397, Japan |
| Abstract: | The effect of thermal treatment on the electrical conductivity was studied for a quasi-one-dimensional organic conductor, (DIMET)2I3 (DIMET=dimethyl(ethylenedithio)tetrathiafulvalene). After heating the samples up to a temperature between 340 and 370 K, the electric resistivity was measured at low temperature down to 2 K and under pressure up to 1.6 Gpa. (DIMET)2I3 shows irreversible decrease in the electric resistivity between 350 and 356 K on heating. It was found that the heating above 350 K suppresses the spin-density-wave transition at 40 K and another metal-insulator transition appears at 18 K. This revised version was published online in August 2006 with corrections to the Cover Date. |
| Keywords: | electric resistivity quasi-one-dimensional organic conductor spin-density-wave TG-DTA temperature-pressure phase diagram |
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