| Autor: |
Takimiya, K., Kodani, M., Niihara, N., Aso, Y., Otsubo, T., Bando, Y., Kawamoto, T., Mori, T. |
| Zdroj: |
Chemistry of Materials; November 2004, Vol. 16 Issue: 24 p5120-5123, 4p |
| Abstrakt: |
A selenium-containing TTF-type electron donor, MDT-TS [5H-2-(1,3-diselenol-2-ylidene)-1,3,4,6-tetrathiapentalene] was effectively synthesized by a two-step reaction and utilized for electrocrystallization with an AuI2- anion. The resulting salt, (MDT-TS)(AuI2)0.441, has a unique crystal packing, in which the donor subcell and the anion lattice are incommensurate. Although the salt has relatively high conductivity at room temperature (600 S cm-1), it showed a metal−insulator (MI) transition at TMI = 50 K. Application of hydrostatic pressure suppressed the MI transition, and at 11.4 kbar (MDT-TS)(AuI2)0.441 showed a superconducting transition at Tc = 4.7 K. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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