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arXiv 1209.0656cond-mat.supr-con
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超导拓扑绝缘体的体电子态

Bulk electronic state of superconducting topological insulator

Tatsuki Hashimoto, Keiji Yada, Ai Yamakage, Masatoshi Sato, Yukio Tanaka

摘要:

研究了以拓扑绝缘体为母体材料的超导拓扑绝缘体的电子性质。本文计算了L。Fu和E. Berg(Phys. Rev. Lett. 105,097001)。由于四对中的三对的比热温度依赖性的线形几乎相同,因此很难简单地从比热中识别它们。另一方面,我们得到了反映库珀对自旋结构的各种自旋磁化率随温度的变化。本文提出通过改变外加磁场的方向,测量奈特位移,可以确定超导拓扑绝缘体的对对称性。

英文摘要:

We study electronic properties of a superconducting topological insulator whose parent material is a topological insulator. We calculate the temperature dependence of the specific heat and spin susceptibility for four promising superconducting pairings proposed by L. Fu and E. Berg (Phys. Rev. Lett. 105, 097001). Since the line shapes of temperature dependence of specific heat are almost identical among three of the four pairings, it is difficult to identify them simply from the specific heat. On the other hand, we obtain wide varieties of the temperature dependence of spin susceptibility for each pairing reflecting the spin structure of Cooper pair. We propose that the pairing symmetry of superconducting topological insulator can be determined from measurement of Knight shift by changing the direction of applied magnetic field.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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