Self-Consistent Solution of the Bogoliubov-de Gennes Equation for a Single Vortex in f-wave Superconductors: Application to Sr_(2)RuO_(4)

摘要

The paring sysmmetry of the triplet superconductor Sr_(2)RuO_(4) is still controversial. Recently, the scanning tunneling microscopy measurement has been done on the quasi-particle structure in Sr_(2)RuO_(4). They obtained the local density of states around a single vortex. Using the Bogoliubov-de Gennes equation in the differential form of f-wave (DELTA+-(k) velence (DELTA)d (k_(x) +- k_(y)) cos (ckz)) superconductivity that has the horizontal nodes, we investigate the quasi-particle structure. As compared with the p-wave pairing, the local density of states of f-wave paring at the vortex core is much similar to the experimental data.