Superconductivity and Peierls instability in coupled linear chain systems

B. Horovitz; A. Birnboim

doi:10.1016/0038-1098(76)90442-7

Superconductivity and Peierls instability in coupled linear chain systems

B. Horovitz, A. Birnboim

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

14 Scopus citations

Abstract

We study the superconducting transition temperature (T_c) and the Peierls instability temperature (T_p) using Eliashberg type equations for both T_c and T_p self consistently with finite interchain coupling. We show that T_c > T_p below a critical electron-phonon coupling constant which depends on the bare phonon frequency. This determines an upper bound on T_c so that for higher transition temperatures T_p > T_c and superconductivity is unlikely. Higher values of T_c are possible if the interchain coupling is increased above a critical value where the Peierls instability is suppressed.

Original language	English
Pages (from-to)	91-95
Number of pages	5
Journal	Solid State Communications
Volume	19
Issue number	2
DOIs	https://doi.org/10.1016/0038-1098(76)90442-7
State	Published - 1 Jan 1976
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/0038-1098(76)90442-7

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title = "Superconductivity and Peierls instability in coupled linear chain systems",

abstract = "We study the superconducting transition temperature (Tc) and the Peierls instability temperature (Tp) using Eliashberg type equations for both Tc and Tp self consistently with finite interchain coupling. We show that Tc > Tp below a critical electron-phonon coupling constant which depends on the bare phonon frequency. This determines an upper bound on Tc so that for higher transition temperatures Tp > Tc and superconductivity is unlikely. Higher values of Tc are possible if the interchain coupling is increased above a critical value where the Peierls instability is suppressed.",

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AU - Horovitz, B.

AU - Birnboim, A.

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N2 - We study the superconducting transition temperature (Tc) and the Peierls instability temperature (Tp) using Eliashberg type equations for both Tc and Tp self consistently with finite interchain coupling. We show that Tc > Tp below a critical electron-phonon coupling constant which depends on the bare phonon frequency. This determines an upper bound on Tc so that for higher transition temperatures Tp > Tc and superconductivity is unlikely. Higher values of Tc are possible if the interchain coupling is increased above a critical value where the Peierls instability is suppressed.

AB - We study the superconducting transition temperature (Tc) and the Peierls instability temperature (Tp) using Eliashberg type equations for both Tc and Tp self consistently with finite interchain coupling. We show that Tc > Tp below a critical electron-phonon coupling constant which depends on the bare phonon frequency. This determines an upper bound on Tc so that for higher transition temperatures Tp > Tc and superconductivity is unlikely. Higher values of Tc are possible if the interchain coupling is increased above a critical value where the Peierls instability is suppressed.

UR - https://www.scopus.com/pages/publications/49549136831

U2 - 10.1016/0038-1098(76)90442-7

DO - 10.1016/0038-1098(76)90442-7

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SP - 91

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JF - Solid State Communications

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Superconductivity and Peierls instability in coupled linear chain systems

Abstract

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