Tunneling spectroscopy of anisotropic superconductors

Satoshi Kashiwaya; Yukio Tanaka; Masao Koyanagi; Koji Kajimura

doi:10.1117/12.241753

10 June 1996 Tunneling spectroscopy of anisotropic superconductors

Satoshi Kashiwaya, Yukio Tanaka, Masao Koyanagi, Koji Kajimura

Proceedings Volume 2696, Spectroscopic Studies of Superconductors; (1996) https://doi.org/10.1117/12.241753
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

Tunneling spectroscopy of normal-insulator-superconductor junction is investigated theoretically. In anisotropic superconductors, different from the case of isotropic superconductor, the effective pair potentials felt by quasiparticles depend on the direction of their motion. By taking this effect into account, it is shown that the conductance spectra strongly depend on the crystal orientation. Using Green's function method, local density of states (LDOS) in superconductor is also calculated. The close relation between conductance spectra and LDOS is presented. The calculation is compared with experimental spectra of high-T_c superconductors.

Citation Download Citation

Satoshi Kashiwaya, Yukio Tanaka, Masao Koyanagi, and Koji Kajimura "Tunneling spectroscopy of anisotropic superconductors", Proc. SPIE 2696, Spectroscopic Studies of Superconductors, (10 June 1996); https://doi.org/10.1117/12.241753

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