A theoretical study of tunneling conductance in PrOs4Sb12 superconducting junctions

Yasuhiro Asano; Yukio Tanaka; Yuji Matsuda; Satoshi Kashiwaya

doi:10.1103/PhysRevB.68.184506

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A theoretical study of tunneling conductance in PrOs4Sb12 superconducting junctions

Yasuhiro Asano, Yukio Tanaka, Yuji Matsuda, Satoshi Kashiwaya

DOI 10.1103/PhysRevB.68.184506 · Physical Review B

T1

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Abstract

The tunnel conductance in normal-metal/insulator/ProS4Sb12 junctions is theoretically studied, where skutterudite ProS4Sb12 is considered to be an unconventional superconductor. The conductance is calculated for several pair potentials which have been proposed in recent work. The results show that the conductance is sensitive to the relation between the direction of electric currents and the position of point nodes. The conductance spectra often deviate from the shape of bulk density of states. The sub gap spectra have peak structures in the case of the spin-triplet pair potentials. The results indicate that the tunnel conductance is a useful tool to obtain information of the pairing symmetry.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
PrOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.82	Pressure not reported	unknown
PrOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.75	Pressure not reported	unknown