Effect of Fermi surface evolution on superconducting gap in superconducting topological insulator

Autor:	Hashimoto, Tatsuki, Yada, Keiji, Yamakage, Ai, Sato, Masatoshi, Tanaka, Yukio
Rok vydání:	2014
Předmět:	Condensed Matter - Superconductivity
Zdroj:	Supercond. Sci. Technol. 27 (2014) 104002
Druh dokumentu:	Working Paper
DOI:	10.1088/0953-2048/27/10/104002
Popis:	We study bulk electronic states of superconducting topological insulator, which is the promising candidate for topological superconductor. Recent experiments suggest that the three-dimensional Fermi surface evolves into two-dimensional one. We show that the superconducting energy gap structure on the Fermi surface systematically changes with this evolution. It is clarified that the bulk electronic properties such as spin-lattice relaxation rate and specific heat depend on the shape of the Fermi surface and the type of the energy gap function. These results serve as a guide to determine the pairing symmetry of Cu$_x$Bi$_2$Se$_3$. Comment: 12 pages, 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1405.6801 Zobrazit plný text záznamu View this record from Arxiv