Super-conducting niobium films produced by means of UHV arc | Zendy

J. Langner | Zendy; Marek J. Sadowski | Zendy; K. Czaus | Zendy; R. Mirowski | Zendy; Jan Witkowski | Zendy; L. Catàni | Zendy; A. Cianchi | Zendy; R. Russo | Zendy; S. Tazzari | Zendy; F. Tazzioli | Zendy; D. Proch | Zendy; N. N. Koval | Zendy; Yu H Akhmadeev | Zendy

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Super-conducting niobium films produced by means of UHV arc

Author(s) -

J. Langner,

Marek J. Sadowski,

K. Czaus,

R. Mirowski,

Jan Witkowski,

L. Catàni,

A. Cianchi,

R. Russo,

S. Tazzari,

F. Tazzioli,

D. Proch,

N. N. Koval,

Yu H Akhmadeev

Publication year - 2004

Publication title -

czechoslovak journal of physics

Language(s) - English

Resource type - Journals

eISSN - 1572-9486

pISSN - 0011-4626

DOI - 10.1007/bf03166508

Subject(s) - materials science , niobium , residual resistivity , vacuum arc , electrical resistivity and conductivity , arc (geometry) , tantalum , thin film , ultra high vacuum , grain size , analytical chemistry (journal) , composite material , metallurgy , plasma , nanotechnology , chemistry , physics , geometry , mathematics , quantum mechanics , chromatography , electrical engineering , engineering

The paper shows that high-quality super-conducting Nb films can be deposited by means of arc discharges under ultra-high vacuum conditions. The critical temperatureT c of Nb-films obtained with a planar cathodic arc Ultra High Vacuum (UHV) system, is very close to that of pure bulk niobiumT c=9.26 K and the transition to super-conducting state is very narrow. The films have higher Residual Resistivity Ratio (RRR) values (up to 80) and larger grain sizes, as compared with sputtered Nb-films deposited at the same temperature.

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