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

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

doi:10.1016/0921-4534(91)91150-3

Kosterlitz-Thouless transition in ultrathin YBa₂Cu₃O_7-x layers in superlattices

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

Physics

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We have determined the Kosterlitz-Thouless transition temperature T_KT and the mean-field transition temperature T_co in ultrathin YBa₂Cu₃O_7-x, insulated by intervening layers of PrBa₂Cu₃O_7-x. T_co is lower, and τ_KT = (T_co- T_KT)/T_co 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 language	English (US)
Pages (from-to)	2051-2052
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	185-189
Issue number	PART 3
DOIs	https://doi.org/10.1016/0921-4534(91)91150-3
State	Published - 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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10.1016/0921-4534(91)91150-3

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title = "Kosterlitz-Thouless transition in ultrathin YBa2Cu3O7-x layers in superlattices",

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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T1 - Kosterlitz-Thouless transition in ultrathin YBa2Cu3O7-x layers in superlattices

AU - Vadlamannati, S.

AU - Li, Q.

AU - Xi, X. X.

AU - Venkatesan, T.

AU - McLean, W. L.

AU - Lindenfeld, P.

PY - 1991/12/1

Y1 - 1991/12/1

N2 - 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.

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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UR - https://www.scopus.com/pages/publications/0026389548#tab=citedBy

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SN - 0921-4534

VL - 185-189

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JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - PART 3

ER -

Kosterlitz-Thouless transition in ultrathin YBa₂Cu₃O_7-x layers in superlattices

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