Kosterlitz-Thouless transition in ultrathin YBa2Cu3O7-x layers in superlattices

S. Vadlamannati, Q. Li, X. X. Xi, T. Venkatesan, W. L. McLean, P. Lindenfeld

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We have determined the Kosterlitz-Thouless transition temperature TKT and the mean-field transition temperature Tco in ultrathin YBa2Cu3O7-x, insulated by intervening layers of PrBa2Cu3O7-x. Tco is lower, and τKT = (Tco- TKT)/Tco is larger up to an order of magnitude than in thicker films or single crystals, showing that 2D-behavior is approached more closely in the multilayers, and, conversely, that in the bulk the behavior is at least partially three-dimensional.

Original languageEnglish (US)
Pages (from-to)2051-2052
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue numberPART 3
StatePublished - Dec 1 1991

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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