Enhanced Kosterlitz-Thouless transition in YBa2Cu3O7-x/PrBa2Cu3O7-x multilayers as a measure of two-dimensionality

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

Research output: Contribution to journalArticle

49 Scopus citations

Abstract

We have observed enhanced Kosterlitz-Thouless transitions in multilayers composed of YBa2Cu3O7-x with a thickness of two and four unit cells, separated by PrBa2Cu3O7-x sufficient to isolate them from one another. The parameter τKT=(Tc0-TKT)/Tc0 is up to an order of magnitude larger than in single crystals or in films, showing that two-dimensional behavior is approached more closely in the multilayers. The fact that the enhancement of two-dimensionality is accompanied by a lowering of Tc0 demonstrates the importance of interlayer coupling.

Original languageEnglish (US)
Pages (from-to)7094-7097
Number of pages4
JournalPhysical Review B
Volume44
Issue number13
DOIs
StatePublished - Jan 1 1991

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Enhanced Kosterlitz-Thouless transition in YBa2Cu3O7-x/PrBa2Cu3O7-x multilayers as a measure of two-dimensionality'. Together they form a unique fingerprint.

  • Cite this