Superconductivity at 14.2 K in Layered Organics under Extreme Pressure
Superconductivity at 14.2 K in Layered Organics under Extreme Pressure
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DOI：
10.1143/jpsj.72.468
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发表时间：
2003-03
影响因子：
1.7
通讯作者：
H. Taniguchi;M. Miyashita;K. Uchiyama;K. Satoh;N. Mōri;H. Okamoto;K. Miyagawa;K. Kanoda;M. Hedo;Y. Uwatoko
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文献类型：
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作者：
H. Taniguchi;M. Miyashita;K. Uchiyama;K. Satoh;N. Mōri;H. Okamoto;K. Miyagawa;K. Kanoda;M. Hedo;Y. Uwatoko
我们证明了β‘-(BEDT-TTf)2ICL2有机Mott绝缘体是通过立方顶压机在极高压力下金属化的。当金属态稳定时，出现有机体系中转变温度(TC)最高的超导电性。超导转变的压力下限约为7.0 Gpa，而Tc在8.2 Gpa时达到最大值14.2K(起始温度)。绘制了压力-温度相图，并与其他有机体系的相图进行了比较。
We demonstrate that an organic Mott insulator, β'-(BEDT-TTF) 2 ICl 2 , is metallized by application of extremely high pressure by means of the cubic anvil press. When the metallic state is stabilized, superconductivity with the highest transition-temperature ( T c ) among the organic systems appears. The lower limit of the pressure at which the superconducting transition manifests itself is approximately 7.0 GPa and T c reaches a maximum value, 14.2 K (onset), at 8.2 GPa. The pressure-temperature phase diagram is constructed and discussed in terms of the comparison with those of other organic systems.