American Chemical Society
ja207353x_si_001.pdf (170.84 kB)

Uniaxial Strain Orientation Dependence of Superconducting Transition Temperature (Tc) and Critical Superconducting Pressure (Pc) in β-(BDA-TTP)2I3

Download (170.84 kB)
journal contribution
posted on 2016-02-22, 11:38 authored by Koichi Kikuchi, Takayuki Isono, Masayuki Kojima, Haruo Yoshimoto, Takeshi Kodama, Wataru Fujita, Keiichi Yokogawa, Harukazu Yoshino, Keizo Murata, Takayuki Kaihatsu, Hiroki Akutsu, Jun-ichi Yamada
Dependence of the superconducting transition temperature (Tc) and critial superconducting pressure (Pc) of the pressure-induced superconductor β-(BDA-TTP)2I3 [BDA-TTP = 2,5-bis(1,3-dithian-2-ylidene)-1,3,4,6-tetrathiapentalene] on the orientation of uniaxial strain has been investigated. On the basis of the overlap between the upper and lower bands in the energy dispersion curve, the pressure orientation is thought to change the half-filled band to the quarter-filled one. The observed variations in Tc and Pc are explained by considering the degree of application of the pressure and the degree of contribution of the effective electronic correlation at uniaxial strains with different orientations parallel to the conducting donor layer.