Superconductivity in Bi observed with point contacts

O. I. Shklyarevskii; A. M. Duif; A. G. M. Jansen; P. Wyder

doi:10.1103/PhysRevB.34.1956

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Superconductivity in Bi observed with point contacts

O. I. Shklyarevskii, A. M. Duif, A. G. M. Jansen, P. Wyder

DOI 10.1103/PhysRevB.34.1956 · Physical Review B

T1

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Abstract

Point contacts with the semimetal Bi show a nonlinear structure in the current-voltage characteristics at liquid-helium temperatures. Because of the dependence on temperature and magnetic field this anomalous structure is ascribed to the presence of superconducting clusters (∼100 nm) at the surface of Bi. In point contacts with deformed and undeformed Bi two different superconducting phases of Bi are observed.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	5.9	Pressure not reported	unknown
Bi Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	3.9	Pressure not reported	unknown
Bi Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	3.95	Pressure not reported	unknown
Bi Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	7.25	Pressure not reported	unknown