Abstract
Two fundamental consequences of the very short coherence length of the new high Tc superconducting oxides are discussed. The first one is an enhanced sensitivity to crystallographic defects which results in local depressions of the superconducting order parameter and weak link behavior. This effect becomes very pronounced when the coherence length approaches the lattice parameter, and results in much reduced critical current densities accross boundaries perpendicular to the c axis. The second consequence are enhanced critical fluctuations of the order parameter in the small coherence volume. We show that there exists a direct relationship between the width of the critical region and the weak pinning often observed in the high Tc oxides.Both of the effects that we discuss -local depressions of the order parameter at boundaries and enhanced critical fluctuations -contribute to a reduction of the critical current density, flux motion and glass behavior.
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References
J.G. Bednorz and K.A. Müller, Z.Phys. B64, 189 (1986).
K.A. Müller, M. Takashige and J.G. Bednorz, Phys. Rev. Lett. 58, 1143 (1987).
K.W. Blazey, K.A. Müller, J.G. Bednorz, W. Berlinger, G. Amoretti, E. Buluggiu, A. Vera and C. Matacotta, Phys. Rev. B36, 7241 (1987).
D. Esteve, J.M. Martinis, C. Urbina, M.H. Devoret, G. Collin, P. Monod, M. Ribault and A. Revcolevschi, Europhys. Lett. 3, 1237 (1987).
T.R. Dinger, T.K. Worthington, W.J. Gallagher and R.L, Sandstrom, Phys. Rev. Lett. 58, 2687(1987)
Y. Yeshurun and A.P. Malozemoff, Phys. Rev. Lett. 60, 2202 (1988).
K.W. Blazey, A.M. Portis, K.A. Müller and F.H. Holzberg, to appear in Europhys. Lett.
T.R. Dinger, T.R. McGuire, D. Keane and M. Chisholm, to be published ( reported at APS Meeting New Orleans, March 1988.
A. Kapitulnik et al., Proceedings of the Interlaken Conference, Switzerland, Feb. 29-Mar.4,1988.
D. Dimos, P. Chaudari, J. Manuhart and F.K. Le Gones, Phys. Rev. Lett., July 1988.
G. Deutscher and K.A. Müller, Phys. Rev. lett. 59, 1745 (1987).
G. Deutscher in “Novel Superconductivity”, ed. S.A. Wolf and V.Z. Kresin, Plenum Press 1987, p.p. 293
C.J. Lobb, Phys. Rev. B36, 3930 (1987)
A. Kapitulnik, M.R. Beasley, C. Castellani and C. Di Castro, Phys. Rev. B37, 537 (1988).
P.W. Anderson, Phys. Rev. Lett. 9, 309.(1962).
P.W. Anderson, Proceedings of the Interlaken Conference, Op. cit.
A. Kapitulnik, presented at the International Conference on Critical Currents in High Temperature Superconductors, Snowmass Village, Colorado, August 16–19,1988.
P.L. Gammel, D.J. Bishop, G.J. Dolan, J.R. Kwo, C.A. Murray, L.F. Schneemeyer and J.V. Waszczak, Phys. Rev. Lett.59, 2592 (1987).
B. Oh, K. Char, A.D. Kent, M. Naito, M.R. Beasley, T.H. Geballe, R.H. Hammond and A. Kapitulnik, Phys. Rev. B37, 7861 (1988).
M. Tinkham, preprint.
K.A. Müller, M. Takashige and J.G. Bednorz, Phys. Rev. Lett. 58, 1143 (1987).
G. Deutscher, Proceedings of the Interlaken Conference, Op. Cit.
U. Dai and G. Deutscher, Appl. Phys. Lett. 51, 6 (1987).
M.M. Fang, V.G. Kogan, D.K. Finnemore, J.R. Clem, L.S. Chumbley and D.E. Farrell, Phys.Rev. B37, 2334 (1988).
See for instance L.H. Greene in Proceedings of the Interlaken Conference, Op. Cit.
M. Daeumling, J. Seuntjeus, and D.C. Larbalestier, Appl. Phys. Lett. 52, 7 (1988).
M.Daeuling, J. Seuntjens, X. Cai and D.C. Larbalestier, presented at the International Conference on Critical Currents, Snwmass Village, Op. Cit.
A.M. Campbell et al., presented at the Materials Research Meeting, Boston, December 1987.
A.M. Campbell et al., presented at the International Conference on Critical Currents , Snowmass Village, Op. Cit.
H. Küpfer, R. Flükiger, J. Apfelstedt, C. Keller, R. Meier-Hirmer, B. Runtsch, A. Turowski U. Wiech and T. Wolf, presented at the International Conference on Critical Currents, Snowmass Village, Op. Cit.
E. Polturak, D. Cohen and A. Brokman, to be published.
P. Monod et al., Proceedings of the Interlaken Conference, Op.Cit.
G. Deutscher, in “Novel Superconductivity”, ed. S.A. Wolf and V.Z. Kresin, Plenum Press 1987, p.p. 293.
R.A. Butera, Phys. Rev. B37, 5909 (1988).
A. Voronel et al. and D.M. Ginsberg et al., Proceedings of the Interlaken Conference, Op. Cit.
S.J. Hagen, Z.Z. Wang and N.P.Ong, to appear in Phys. Rev.B.
Y. Yeshurun et al., presented at the INternational Conference on Critical Currents, Snowmass Village, Op. Cit.
J. Mannhart et al., presented at the International Conference on Critical Currents, Snowmass Village, Op. Cit.
C. Rossel et al., presented at the IBM Workshop on High Temperature Superconductivity, Oberlech, Austria, August 8–12, 1988, to be published in the IBM Journal of Research and Development.
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Deutscher, G. (1989). Properties of High Tc Short Coherence Length Superconductors. In: Kitazawa, K., Ishiguro, T. (eds) Advances in Superconductivity. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68084-0_64
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DOI: https://doi.org/10.1007/978-4-431-68084-0_64
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