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Magnetic Field Dependence of the Critical Currents in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} /Bi{sub 2}Sr{sub 2}CuO{sub 6} Multilayers: An Approach to an Ideal Two Dimensional Superconductor

Journal Article · · Physical Review Letters
; ; ; ;  [1]; ;  [2]
  1. Laboratoire de Physique des Solides, Batiment 510, Universite de Paris-Sud, 91405 Orsay CEDEX (France)
  2. Centre de Recherche sur les Tres Basses Temperatures, Centre National de la Recherche Scientifique, B.P. 166X, 38042 Grenoble CEDEX (France)
Angular magnetic field dependence of the critical currents of (Bi{sub 2} Sr{sub 2}CaCu {sub 2}O{sub 8}){sub m}/(Bi {sub 2}Sr{sub 2}CuO{sub 6}){sub n} multilayers has been investigated, {ital m} and {ital n} being the numbers of {ital c}-axis half unit cells of each phase in one layer. In the limiting case of 15 {Angstrom} thick 2212 layers and 24 {Angstrom} thick 2201 layers per multilayer unit m=1,n=2, we have achieved a superconducting system where J{sub c}(H) is independent of a magnetic field H{le}20T parallel to the layers. We demonstrate that this system behaves like an ideal 2D superconductor. {copyright} {ital 1997} {ital The American Physical Society}
OSTI ID:
538609
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 7 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English