Andreev bound states, surfaces and subdominant pairing in high Tc superconductors

D. Rainer; H. Burkhardt; M. Fogelström; J. A. Sauls

doi:10.1016/S0022-3697(98)00175-9

Andreev bound states, surfaces and subdominant pairing in high T_c superconductors

D. Rainer^*, H. Burkhardt, M. Fogelström, J. A. Sauls

^*Corresponding author for this work

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

38 Scopus citations

Abstract

A characteristic feature of the BCS theory of superconductivity is the quantum-mechanical coherence of particle and hole states. Direct observation of particle-hole coherence in unusual superconducting materials is a strong indication of traditional superconductivity. We use the Fermi liquid theory of superconductivity to study the implications of particle-hole coherence on properties of d-wave superconductors near surfaces. Typical surface phenomena are the suppression of the superconducting order parameter, surface bound states associated with Andreev reflection, anomalous screening currents, and spontaneous breaking of time-reversal symmetry. We review these phenomena and present new results for the effects of surface roughness.

Original language	English (US)
Pages (from-to)	2040-2044
Number of pages	5
Journal	Journal of Physics and Chemistry of Solids
Volume	59
Issue number	10-12
DOIs	https://doi.org/10.1016/S0022-3697(98)00175-9
State	Published - 1998
Externally published	Yes

Keywords

Andreev reflection
Subdominant pairing
Surface roughness

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

Access to Document

10.1016/S0022-3697(98)00175-9

Cite this

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title = "Andreev bound states, surfaces and subdominant pairing in high Tc superconductors",

abstract = "A characteristic feature of the BCS theory of superconductivity is the quantum-mechanical coherence of particle and hole states. Direct observation of particle-hole coherence in unusual superconducting materials is a strong indication of traditional superconductivity. We use the Fermi liquid theory of superconductivity to study the implications of particle-hole coherence on properties of d-wave superconductors near surfaces. Typical surface phenomena are the suppression of the superconducting order parameter, surface bound states associated with Andreev reflection, anomalous screening currents, and spontaneous breaking of time-reversal symmetry. We review these phenomena and present new results for the effects of surface roughness.",

keywords = "Andreev reflection, Subdominant pairing, Surface roughness",

author = "D. Rainer and H. Burkhardt and M. Fogelstr{\"o}m and Sauls, {J. A.}",

note = "Funding Information: The work of J. A. S. was supported in part by the STC for Superconductivity through NSF Grant no. 91-20000. D. R. and J. A. S. also acknowledge support from the Max-Planck-Gesellschaft and the Alexander von Humboldt-Stiftung. M. F. acknowledges partial support from SF{\AA}AF, {\AA}bo Akademi and M. Ehrnrooths Stiftelse.",

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AU - Rainer, D.

AU - Burkhardt, H.

AU - Fogelström, M.

AU - Sauls, J. A.

N1 - Funding Information: The work of J. A. S. was supported in part by the STC for Superconductivity through NSF Grant no. 91-20000. D. R. and J. A. S. also acknowledge support from the Max-Planck-Gesellschaft and the Alexander von Humboldt-Stiftung. M. F. acknowledges partial support from SFÅAF, Åbo Akademi and M. Ehrnrooths Stiftelse.

PY - 1998

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N2 - A characteristic feature of the BCS theory of superconductivity is the quantum-mechanical coherence of particle and hole states. Direct observation of particle-hole coherence in unusual superconducting materials is a strong indication of traditional superconductivity. We use the Fermi liquid theory of superconductivity to study the implications of particle-hole coherence on properties of d-wave superconductors near surfaces. Typical surface phenomena are the suppression of the superconducting order parameter, surface bound states associated with Andreev reflection, anomalous screening currents, and spontaneous breaking of time-reversal symmetry. We review these phenomena and present new results for the effects of surface roughness.

AB - A characteristic feature of the BCS theory of superconductivity is the quantum-mechanical coherence of particle and hole states. Direct observation of particle-hole coherence in unusual superconducting materials is a strong indication of traditional superconductivity. We use the Fermi liquid theory of superconductivity to study the implications of particle-hole coherence on properties of d-wave superconductors near surfaces. Typical surface phenomena are the suppression of the superconducting order parameter, surface bound states associated with Andreev reflection, anomalous screening currents, and spontaneous breaking of time-reversal symmetry. We review these phenomena and present new results for the effects of surface roughness.

KW - Andreev reflection

KW - Subdominant pairing

KW - Surface roughness

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