Superconductive tunneling into Nb$sub 3$(Al$sub 0$ $sub 75$Ge$sub 0$ $sub 25$)

Journal Article · Mon Dec 17 04:00:00 EST 1973 · Phys. Lett., A, v. 46A, no. 3, pp. 201-202

OSTI ID:4335612

Gregory, J A; Bostock, J; MacVicar, M L.A.; Rose, R M

Current and conductance characteristics have been obtained for Nb/sub 3/ (Al/sub 0.75/Ge/sub 0.25/) barrier Pb/sub 0.7/Bi/sub 0.3/ superconducti ng tunneling junctions prepared on Nb/sub 3/ (Al/sub 0.75/Ge/sub 0.25/) ribbon substrates. Therma l oxide, anodized, and amorphous carbon tunneling barriers were used. These junctions are relatively fragile: they deteriorate under temperature recycling or sustained bias. Typical junction resistances are of the order of 50 OMEGA , and 2 DELTA (0) of Nb/sub 3/(Al/sub 0.75/ Ge/sub 0 .25/) is approximates 1.3 MeV. (auth)

• Research Organization: Massachusetts Inst. of Tech., Cambridge
• NSA Number: NSA-29-019585
• OSTI ID: 4335612
• Journal Information: Phys. Lett., A, v. 46A, no. 3, pp. 201-202, Journal Name: Phys. Lett., A, v. 46A, no. 3, pp. 201-202; ISSN PYLAA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

*ALUMINIUM ALLOYS-- SUPERCONDUCTIVITY
*GERMANIUM ALLOYS-- SUPERCONDUCTIVITY
*NIOBIUM BASE ALLOYS-- SUPERCONDUCTIVITY
N66200* --Physics (Low Temperature)--Superconductivity
TUNNEL EFFECT