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Dimensional crossover in fractal multilayered superconductors

Sidorenko, Anatoli; Sürgers, Christoph; Trappmann, Thomas; Löhneysen, Hilbert von

Abstract:
Superconducting properties of multilayers consisting of alternating Nb and Cu layers with a fractal stacking sequence have been investigated. Dimensional crossover is observed in the temperature dependence of the parallel critical magnetic field Bc2∥ from “fractal behaviour” near Tc where Bc2∥∼(1−T/Tc)ƒ with 0.5 \< ƒ \< 1 to twodimensional behaviour Bc2∥∼(1−T/Tc)12 below a crossover temperature Tcr. Tcr strongly depends on the fractal dimension Dƒ of the multilayered superconductor.


Zugehörige Institution(en) am KIT Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Jahr 1994
Sprache Deutsch
Identifikator ISSN: 0921-4534
KITopen ID: 259294
Erschienen in Physica C: Superconductivity and its applications
Band 235-240
Heft 4
Seiten 2615-2616
Bemerkung zur Veröffentlichung Sonderdrucknummer 95S136
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