Superconductivity in the charge-density-wave state of the organic metal α-(BEDT-TTF)2KHg(SCN)4 -: art. no. 174513

被引:24
作者
Andres, D [1 ]
Kartsovnik, MV
Biberacher, W
Neumaier, K
Schuberth, E
Müller, H
机构
[1] Bayer Akad Wissensch, Walther Meissner Inst, D-85748 Garching, Germany
[2] European Synchrotron Radiat Facil, F-38043 Grenoble, France
关键词
D O I
10.1103/PhysRevB.72.174513
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The superconducting transition in the layered organic compound alpha-(BEDT-TTF)(2)KHg(SCN)(4) has been studied in the two hydrostatic pressure regimes where a charge-density wave is either present or completely suppressed. Within the charge-density-wave state the experimental results reveal a network of weakly coupled superconducting regions. This is especially seen in a strong enhancement of the measured critical field and the corresponding positive curvature of its temperature dependence. Further, it is shown that on lowering the pressure into the density-wave state traces of a superconducting phase already start to appear at a much higher temperature.
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页数:7
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