- Autor(in)
- Sponsor(in)
- Referenz
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10 L. Fabrega, M. A. Crusellas, J. Fontcuberta, X. Obrados, S. Pinol, C. J. van der Beek, P. H. Kees, T. Grenet and J. Beille, Physica C 185-189 (1991) 1913
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12 B. Weitzel, A. Schreyer and H. Micklitz, Europhys. Lett. 12 (1990) 123
13 J. Clarke, in: Nonequilibrium Superconductivity, Phonons and Kapitza boundaries, Ed: K. E. Gray, Plenum, New York 1981, p. 353
14 G. L. Harding, A. B. Pippard, F. R. S. and J. R. Tomlinson, Proc. R. Soc. Lond. A 340 (1974) 1
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5 S. Rubin, Diplomthesis, Universität zu Köln (1992), unpublished
6 Similar peaks have been seen in granular films of Bi/Xe and Bi/Ge (B. Weitzel, private communication)
7 P. Santhanan, C. C. Chi, S. J. Wind, M. J. Brady, J. J. Bucchignano, Phys. Rev. Lett. 66 (1991) 2254
8 V. v. Moshchalkov, H. Vloeberghs, M. Dhalle, G. Neuttiens, C. van Haesendonck, R. Jonckheere and Y. Bruynseraede, to be published
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A. Nordström and Ö. Rapp, Phys. Rev. B45 (1992) 12577
- Seitenbereich
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0492 - 0499
- Schlagwort(e)
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<KWD>Granular superconductors
Metal clusters
Nonequilibrium superconductivity
- Zusammenfsg.
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Granular films prepared from well-defined In clusters embedded in Kr (⋍ 10-40 at % Kr) show sharp resistance anomalies very close to the superconducting transition temperature. The observed resistance peak(s), which go(es) <I>above</I> the normal state resistance <I>R</I><sub><I>N</I></sub> and which can be as high as ⋍ 1.5 <I>R</I><sub><I>N</I></sub>, can be explained by a "mesoscopic" effect: Superconducting percolation aggregates of size ξ<sub>ρ</sub>, larger than the superconducting coherence length ξ<sub><I>S</I></sub>, but smaller than the quasiparticle relaxation length λ<sub>Q*</sub>, have a superconducting gap, but are not yet able to carry a supercurrent.
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