Effect of Tin Additive on Indium Thin‐Film Superconducting Transmission Lines

作者: P. V. Mason

DOI: 10.1063/1.1659663

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摘要: We report the effect of adding up to 23% tin indium film a thin‐film/tantalum‐oxide/bulktantalum transmission line. Addition reduces velocity and increases delay for fixed length by 1.4% each percent tin. Agreement with predictions Pippard's nonlocal theory when meanfree path is reduced excellent. Pulse attenuation shape degradation are not increased addition Attenuation as low 10 dB per microsecond was observed at 1.25 K. The added 50% sensitivity temperature near Tc, improves reproducibility from line Critical 6 K tin, in good agreement previous measurements.

参考文章(11)
P. V. Mason, R. W. Gould, Slow‐Wave Structures Utilizing Superconducting Thin‐Film Transmission Lines Journal of Applied Physics. ,vol. 40, pp. 2039- 2051 ,(1969) , 10.1063/1.1657907
A. M. Toxen, Critical fields of thin superconducting films. I. Thickness effects Physical Review. ,vol. 127, pp. 382- 386 ,(1962) , 10.1103/PHYSREV.127.382
K. Fuchs, The conductivity of thin metallic films according to the electron theory of metals Mathematical Proceedings of the Cambridge Philosophical Society. ,vol. 34, pp. 100- 108 ,(1938) , 10.1017/S0305004100019952
J. Bardeen, L. N. Cooper, J. R. Schrieffer, Theory of Superconductivity Physical Review. ,vol. 108, pp. 1175- 1204 ,(1957) , 10.1103/PHYSREV.108.1175
An Experimental and Theoretical Study of the Relation between Magnetic Field and Current in a Superconductor Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences. ,vol. 216, pp. 547- 568 ,(1953) , 10.1098/RSPA.1953.0040
Penetration of Magnetic Fields into Superconductors III. Measurements on Thin Films of Tin, Lead and Indium Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences. ,vol. 208, pp. 391- 408 ,(1951) , 10.1098/RSPA.1951.0169
James C. Swihart, Field Solution for a Thin‐Film Superconducting Strip Transmission Line Journal of Applied Physics. ,vol. 32, pp. 461- 469 ,(1961) , 10.1063/1.1736025
M. F. Merriam, M. Von Herzen, Superconductivity in the Indium-Tin System Physical Review. ,vol. 131, pp. 637- 643 ,(1963) , 10.1103/PHYSREV.131.637
A. M. Toxen, M. J. Burns, D. J. Quinn, SUPERCONDUCTING AND NORMAL STATE PROPERTIES OF DILUTE INDIUM-TIN ALLOYS: BULK AND THIN FILM Physical Review. ,vol. 138, pp. 1145- 1154 ,(1965) , 10.1103/PHYSREV.138.A1145