Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Thermally activated flux motion in artificially grown YBa sub 2 Cu sub 3 O sub 7 /PrBa sub 2 Cu sub 3 O sub 7 superlattices

Journal Article · · Physical Review Letters; (United States)
; ; ; ;  [1]
  1. Departement de Physique de la Matiere Condensee, Universite de Geneve, 24 Quai E. Ansermet, 1211 Geneve 4 (Switzerland)

We have studied the thermally activated flux-flow resistance in YBa{sub 2}Cu{sub 3}O{sub 7}/PrBa{sub 2}Cu{sub 3}O{sub 7} (YBCO/BrBCO) artificial superlattices in magnetic fields perpendicular to the {ital a}-{ital b} plane. We find for multilayers with thick enough ({gt}24 A) insulating PrBCO layers and for YBCO thicknesses smaller than 300 A that the activation energy has a logarithmic magnetic field dependence and that is is proportional to the YBCO thickness in the multilayer.

OSTI ID:
5172191
Journal Information:
Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 67:10; ISSN PRLTA; ISSN 0031-9007
Country of Publication:
United States
Language:
English