Interlayer coupling effect in high-Tc superconductors probed by YBa2Cu3O7-x/PrBa2Cu3O7-x superlattices

Q. Li; X. X. Xi; X. D. Wu; A. Inam; S. Vadlamannati; W. L. McLean; T. Venkatesan; R. Ramesh; D. M. Hwang; J. A. Martinez; L. Nazar

doi:10.1103/PhysRevLett.64.3086

Interlayer coupling effect in high-Tc superconductors probed by YBa2Cu3O7-x/PrBa2Cu3O7-x superlattices

Q. Li
, X. X. Xi
, X. D. Wu
, A. Inam
, S. Vadlamannati
, W. L. McLean
, T. Venkatesan
, R. Ramesh
, D. M. Hwang
, J. A. Martinez
, L. Nazar

Physics

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

320 Scopus citations

Abstract

The effect of coupling between layers of the high-Tc superconductors was studied by varying both the YBa2Cu3O7-x and PrBa2Cu3O7-x layer thicknesses in YBa2Cu3O7-x/PrBa2Cu3O7-x superlattices. Superconductivity was found even when the YBa2Cu3O7-x layers had nominal thicknesses as small as 12 (one unit-cell thickness) but coupling between unit-cell layers is needed to achieve a Tc of 90 K. The decrease of Tc in isolated YBa2Cu3O7-x layers with increasing sheet resistance is on the same scale of about Latin small letter h with stroke/e2 as observed for ordinary superconductors.

Original language	English (US)
Pages (from-to)	3086-3089
Number of pages	4
Journal	Physical review letters
Volume	64
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.64.3086
State	Published - 1990

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.64.3086

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title = "Interlayer coupling effect in high-Tc superconductors probed by YBa2Cu3O7-x/PrBa2Cu3O7-x superlattices",

abstract = "The effect of coupling between layers of the high-Tc superconductors was studied by varying both the YBa2Cu3O7-x and PrBa2Cu3O7-x layer thicknesses in YBa2Cu3O7-x/PrBa2Cu3O7-x superlattices. Superconductivity was found even when the YBa2Cu3O7-x layers had nominal thicknesses as small as 12 (one unit-cell thickness) but coupling between unit-cell layers is needed to achieve a Tc of 90 K. The decrease of Tc in isolated YBa2Cu3O7-x layers with increasing sheet resistance is on the same scale of about Latin small letter h with stroke/e2 as observed for ordinary superconductors.",

author = "Q. Li and Xi, \{X. X.\} and Wu, \{X. D.\} and A. Inam and S. Vadlamannati and McLean, \{W. L.\} and T. Venkatesan and R. Ramesh and Hwang, \{D. M.\} and Martinez, \{J. A.\} and L. Nazar",

year = "1990",

doi = "10.1103/PhysRevLett.64.3086",

language = "English (US)",

volume = "64",

pages = "3086--3089",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "25",

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TY - JOUR

T1 - Interlayer coupling effect in high-Tc superconductors probed by YBa2Cu3O7-x/PrBa2Cu3O7-x superlattices

AU - Li, Q.

AU - Xi, X. X.

AU - Wu, X. D.

AU - Inam, A.

AU - Vadlamannati, S.

AU - McLean, W. L.

AU - Venkatesan, T.

AU - Ramesh, R.

AU - Hwang, D. M.

AU - Martinez, J. A.

AU - Nazar, L.

PY - 1990

Y1 - 1990

N2 - The effect of coupling between layers of the high-Tc superconductors was studied by varying both the YBa2Cu3O7-x and PrBa2Cu3O7-x layer thicknesses in YBa2Cu3O7-x/PrBa2Cu3O7-x superlattices. Superconductivity was found even when the YBa2Cu3O7-x layers had nominal thicknesses as small as 12 (one unit-cell thickness) but coupling between unit-cell layers is needed to achieve a Tc of 90 K. The decrease of Tc in isolated YBa2Cu3O7-x layers with increasing sheet resistance is on the same scale of about Latin small letter h with stroke/e2 as observed for ordinary superconductors.

AB - The effect of coupling between layers of the high-Tc superconductors was studied by varying both the YBa2Cu3O7-x and PrBa2Cu3O7-x layer thicknesses in YBa2Cu3O7-x/PrBa2Cu3O7-x superlattices. Superconductivity was found even when the YBa2Cu3O7-x layers had nominal thicknesses as small as 12 (one unit-cell thickness) but coupling between unit-cell layers is needed to achieve a Tc of 90 K. The decrease of Tc in isolated YBa2Cu3O7-x layers with increasing sheet resistance is on the same scale of about Latin small letter h with stroke/e2 as observed for ordinary superconductors.

UR - https://www.scopus.com/pages/publications/11944255607

UR - https://www.scopus.com/pages/publications/11944255607#tab=citedBy

U2 - 10.1103/PhysRevLett.64.3086

DO - 10.1103/PhysRevLett.64.3086

M3 - Article

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AN - SCOPUS:11944255607

SN - 0031-9007

VL - 64

SP - 3086

EP - 3089

JO - Physical review letters

JF - Physical review letters

IS - 25

ER -

Interlayer coupling effect in high-Tc superconductors probed by YBa2Cu3O7-x/PrBa2Cu3O7-x superlattices

Abstract

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