Electron-phonon vertex and its influence on the superconductivity of two-dimensional metals on a piezoelectric substrate

David G. González; Fernando Sols; Francisco Guinea; Ivar Zapata

doi:10.1103/PhysRevB.94.085423

Electron-phonon vertex and its influence on the superconductivity of two-dimensional metals on a piezoelectric substrate

David G. González, Fernando Sols, Francisco Guinea, Ivar Zapata

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

110 Downloads (Pure)

Abstract

We investigate the interaction between the electrons of a two-dimensional metal and the acoustic phonons of an underlying piezoelectric substrate. Fundamental inequalities can be obtained from general energy arguments. As a result, phonon mediated attraction can be proven to never overcome electron Coulomb repulsion, at least for long phonon wavelengths. We study the influence of these phonons on the possible pairing instabilities of a two-dimensional electron gas such as graphene.

Original language	English
Article number	085423
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	94
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevB.94.085423
Publication status	Published - 24 Aug 2016

Access to Document

10.1103/PhysRevB.94.085423

1601.04508v3.pdAccepted author manuscript, 649 KB

Cite this

@article{9bb1a46080954da9ae524ded454f2f70,

title = "Electron-phonon vertex and its influence on the superconductivity of two-dimensional metals on a piezoelectric substrate",

abstract = "We investigate the interaction between the electrons of a two-dimensional metal and the acoustic phonons of an underlying piezoelectric substrate. Fundamental inequalities can be obtained from general energy arguments. As a result, phonon mediated attraction can be proven to never overcome electron Coulomb repulsion, at least for long phonon wavelengths. We study the influence of these phonons on the possible pairing instabilities of a two-dimensional electron gas such as graphene.",

author = "Gonz{\'a}lez, {David G.} and Fernando Sols and Francisco Guinea and Ivar Zapata",

year = "2016",

month = aug,

day = "24",

doi = "10.1103/PhysRevB.94.085423",

language = "English",

volume = "94",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "8",

}

TY - JOUR

T1 - Electron-phonon vertex and its influence on the superconductivity of two-dimensional metals on a piezoelectric substrate

AU - González, David G.

AU - Sols, Fernando

AU - Guinea, Francisco

AU - Zapata, Ivar

PY - 2016/8/24

Y1 - 2016/8/24

N2 - We investigate the interaction between the electrons of a two-dimensional metal and the acoustic phonons of an underlying piezoelectric substrate. Fundamental inequalities can be obtained from general energy arguments. As a result, phonon mediated attraction can be proven to never overcome electron Coulomb repulsion, at least for long phonon wavelengths. We study the influence of these phonons on the possible pairing instabilities of a two-dimensional electron gas such as graphene.

AB - We investigate the interaction between the electrons of a two-dimensional metal and the acoustic phonons of an underlying piezoelectric substrate. Fundamental inequalities can be obtained from general energy arguments. As a result, phonon mediated attraction can be proven to never overcome electron Coulomb repulsion, at least for long phonon wavelengths. We study the influence of these phonons on the possible pairing instabilities of a two-dimensional electron gas such as graphene.

UR - http://www.scopus.com/inward/record.url?scp=84985991208&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.94.085423

DO - 10.1103/PhysRevB.94.085423

M3 - Article

AN - SCOPUS:84985991208

SN - 1098-0121

VL - 94

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 8

M1 - 085423

ER -

Electron-phonon vertex and its influence on the superconductivity of two-dimensional metals on a piezoelectric substrate

Abstract

Access to Document

Other files and links

Fingerprint

Cite this