On Ambient-Pressure Superconductivity in Organic Conductors: Electrical Properties of (DMET)2I3, (DMET)2I2Br and (DMET)2IBr2

On Ambient-Pressure Superconductivity in Organic Conductors: Electrical Properties of (DMET)2I3, (DMET)2I2Br and (DMET)2IBr2
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有机导体的常压超导性:(DMET)2I3、(DMET)2I2Br 和 (DMET)2IBr2 的电学性质

DOI:
10.1143/jpsj.56.3436
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发表时间:
1987
影响因子:
1.7
通讯作者:
I. Ikemoto
I. Ikemoto
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
K. Kikuchi;K. Murata;Y. Honda;T. Namiki;Kazuya Saito;T. Ishiguro;Keiji Kobayashi;I. Ikemoto

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我们在0.47 K 的(DMET) 2 I 3 和0.59 K(中点)的(DMET) 2 IBr 2 中发现了环境压力下的超导性,其中DMET 是(二甲基(乙撑二硫)二硒二硫富瓦烯),而在(DMET) 2 I 2 Br 中,在低至0.5 K 时未观察到超导性。在DMET 盐中,摩尔体积较小的盐表现出较高的转变温度,与 BEDT-TTF 盐相反。讨论了阴离子取向紊乱对超导性的影响。
We discovered superconductivity at ambient pressure in (DMET) 2 I 3 at 0.47 K and in (DMET) 2 IBr 2 at 0.59 K (midpoints), where DMET is (dimethyl(ethylenedithio)diselenadithiafulvalene), while in (DMET) 2 I 2 Br, superconductivity was not observed down to 0.5 K. In the DMET salts, those with smaller molar volume exhibit higher transition temperature, contrary to the BEDT-TTF salts. The effect of the disorder of the anion orientation on superconductivity is discussed.