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 journalArticle

2 Citations (Scopus)

Abstract

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
Volume185-189
Issue numberPART 3
DOIs
StatePublished - Dec 1 1991

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Superlattices
Thick films
Superconducting transition temperature
superlattices
Multilayers
transition temperature
Single crystals
thick films
single crystals
crystals
barium copper yttrium oxide

All Science Journal Classification (ASJC) codes

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

Cite this

Vadlamannati, S. ; Li, Q. ; Xi, X. X. ; Venkatesan, T. ; McLean, W. L. ; Lindenfeld, P. / Kosterlitz-Thouless transition in ultrathin YBa2Cu3O7-x layers in superlattices. In: Physica C: Superconductivity and its applications. 1991 ; Vol. 185-189, No. PART 3. pp. 2051-2052.
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abstract = "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.",
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Vadlamannati, S, Li, Q, Xi, XX, Venkatesan, T, McLean, WL & Lindenfeld, P 1991, 'Kosterlitz-Thouless transition in ultrathin YBa2Cu3O7-x layers in superlattices', Physica C: Superconductivity and its applications, vol. 185-189, no. PART 3, pp. 2051-2052. https://doi.org/10.1016/0921-4534(91)91150-3

Kosterlitz-Thouless transition in ultrathin YBa2Cu3O7-x layers in superlattices. / Vadlamannati, S.; Li, Q.; Xi, X. X.; Venkatesan, T.; McLean, W. L.; Lindenfeld, P.

In: Physica C: Superconductivity and its applications, Vol. 185-189, No. PART 3, 01.12.1991, p. 2051-2052.

Research output: Contribution to journalArticle

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AU - Vadlamannati, S.

AU - Li, Q.

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AU - Venkatesan, T.

AU - McLean, W. L.

AU - Lindenfeld, P.

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AB - 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.

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