Significance of interlayer interactions to the superconducting mechanism of high-Tc copper oxides

J. Ihm; Byung Deok Yu; Hanchul Kim

doi:10.1016/0038-1098(90)90117-T

Significance of interlayer interactions to the superconducting mechanism of high-T_c copper oxides

J. Ihm, Byung Deok Yu, Hanchul Kim

Department of Physics

Seoul National University

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

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Abstract

A systematic analysis of various experimental data on T_c and α (isotope effects) within the Eliashberg formalism including both the intralayer and the interlayer pairing leads us to conclude that i) the trends of T_c for known high-T_c copper oxides are well described in terms of a non-phonon, BCS type (λ<1 and the Cooper-pair like) pairing mechanism whose identity is yet to be understood, and ii) the effective interlayer pair scattering in multilayer compounds, though weaker than the intralayer counterpart, is estimated to be rather substantial (λ_{interlayer≈}0.1). The presence of the appreciable interlayer scattering in the system casts doubt on the possibility of anyon superconductivity which requires two-dimensional topology.

Original language	English
Pages (from-to)	691-696
Number of pages	6
Journal	Solid State Communications
Volume	76
Issue number	5
DOIs	https://doi.org/10.1016/0038-1098(90)90117-T
State	Published - Nov 1990

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title = "Significance of interlayer interactions to the superconducting mechanism of high-Tc copper oxides",

abstract = "A systematic analysis of various experimental data on Tc and α (isotope effects) within the Eliashberg formalism including both the intralayer and the interlayer pairing leads us to conclude that i) the trends of Tc for known high-Tc copper oxides are well described in terms of a non-phonon, BCS type (λ<1 and the Cooper-pair like) pairing mechanism whose identity is yet to be understood, and ii) the effective interlayer pair scattering in multilayer compounds, though weaker than the intralayer counterpart, is estimated to be rather substantial (λinterlayer≈0.1). The presence of the appreciable interlayer scattering in the system casts doubt on the possibility of anyon superconductivity which requires two-dimensional topology.",

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AU - Ihm, J.

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AU - Kim, Hanchul

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N2 - A systematic analysis of various experimental data on Tc and α (isotope effects) within the Eliashberg formalism including both the intralayer and the interlayer pairing leads us to conclude that i) the trends of Tc for known high-Tc copper oxides are well described in terms of a non-phonon, BCS type (λ<1 and the Cooper-pair like) pairing mechanism whose identity is yet to be understood, and ii) the effective interlayer pair scattering in multilayer compounds, though weaker than the intralayer counterpart, is estimated to be rather substantial (λinterlayer≈0.1). The presence of the appreciable interlayer scattering in the system casts doubt on the possibility of anyon superconductivity which requires two-dimensional topology.

AB - A systematic analysis of various experimental data on Tc and α (isotope effects) within the Eliashberg formalism including both the intralayer and the interlayer pairing leads us to conclude that i) the trends of Tc for known high-Tc copper oxides are well described in terms of a non-phonon, BCS type (λ<1 and the Cooper-pair like) pairing mechanism whose identity is yet to be understood, and ii) the effective interlayer pair scattering in multilayer compounds, though weaker than the intralayer counterpart, is estimated to be rather substantial (λinterlayer≈0.1). The presence of the appreciable interlayer scattering in the system casts doubt on the possibility of anyon superconductivity which requires two-dimensional topology.

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Significance of interlayer interactions to the superconducting mechanism of high-T_c copper oxides

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