Superconducting effective-mass anisotropy in kappa -(BEDT- TTF)2 Cu(NCS)2
Superconducting effective-mass anisotropy in kappa -(BEDT- TTF)2 Cu(NCS)2
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kappa 中的超导有效质量各向异性 -(BEDT- TTF)2 Cu(NCS)2
DOI：
10.1103/physrevb.42.8694
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
Chichester
中科院分区：
文献类型：
--
作者：
Farrell;Allen;Haddon;Chichester
我们对有机超导体进行了转矩磁强计研究。结果表明，\ensuremath {\kappa}-BEDT-${\mathrm {TTF}}_{2}$Cu（NCS ${）}_{2}$的超导性具有极强的各向异性，并提出超导有效质量各向异性的下限为4\ifmmode\times\else\texttimes\fi {}${10}^{4}$.我们的数据还使我们能够对扭矩的三维（3D）模型的预测以及最近提出的“2D”方法的预测进行详细测试。我们的结果与3D模型的预测更吻合。
We have performed a torque magnetometry study of an organic superconductor. The results indicate that the superconductivity of \ensuremath{\kappa}-BEDT-${\mathrm{TTF}}_{2}$Cu(NCS${)}_{2}$ is extremely anisotropic, and suggest a lower bound of 4\ifmmode\times\else\texttimes\fi{}${10}^{4}$ for the superconducting effective-mass anisotropy. Our data have also allowed us to make a detailed test of the predictions of the three-dimensional (3D) model for the torque and also those of a recently suggested ``2D'' approach. Our results are in better agreement with the predictions of the 3D model.