Substrate-enhanced superconductivity in Li-decorated graphene

Thaneshwor P. Kaloni; Alexander V. Balatsky; Udo Schwingenschlögl

doi:10.1209/0295-5075/104/47013

Substrate-enhanced superconductivity in Li-decorated graphene

Thaneshwor P. Kaloni, Alexander V. Balatsky, Udo Schwingenschlögl

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37 Scopus citations

Abstract

We investigate the role of the substrate for the strength of the electron-phonon coupling in Li-decorated graphene. We find that the interaction with a h-BN substrate leads to a significant enhancement from to , which corresponds to a 25% increase of the transition temperature from to . The superconducting gaps amount to 1.56 meV (suspended) and 1.98 meV (supported). These findings open up a new route to enhanced superconducting transition temperatures in graphene-based materials by substrate engineering. © 2013 EPLA.

Original language	English (US)
Pages (from-to)	47013
Journal	EPL (Europhysics Letters)
Volume	104
Issue number	4
DOIs	https://doi.org/10.1209/0295-5075/104/47013
State	Published - Dec 16 2013

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We thank G. PROFETA for fruitful discussions. This work is supported by US DOE, ERC-DM-321031, and VR.

ASJC Scopus subject areas

General Physics and Astronomy

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title = "Substrate-enhanced superconductivity in Li-decorated graphene",

abstract = "We investigate the role of the substrate for the strength of the electron-phonon coupling in Li-decorated graphene. We find that the interaction with a h-BN substrate leads to a significant enhancement from to , which corresponds to a 25% increase of the transition temperature from to . The superconducting gaps amount to 1.56 meV (suspended) and 1.98 meV (supported). These findings open up a new route to enhanced superconducting transition temperatures in graphene-based materials by substrate engineering. {\textcopyright} 2013 EPLA.",

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AU - Balatsky, Alexander V.

AU - Schwingenschlögl, Udo

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N2 - We investigate the role of the substrate for the strength of the electron-phonon coupling in Li-decorated graphene. We find that the interaction with a h-BN substrate leads to a significant enhancement from to , which corresponds to a 25% increase of the transition temperature from to . The superconducting gaps amount to 1.56 meV (suspended) and 1.98 meV (supported). These findings open up a new route to enhanced superconducting transition temperatures in graphene-based materials by substrate engineering. © 2013 EPLA.

AB - We investigate the role of the substrate for the strength of the electron-phonon coupling in Li-decorated graphene. We find that the interaction with a h-BN substrate leads to a significant enhancement from to , which corresponds to a 25% increase of the transition temperature from to . The superconducting gaps amount to 1.56 meV (suspended) and 1.98 meV (supported). These findings open up a new route to enhanced superconducting transition temperatures in graphene-based materials by substrate engineering. © 2013 EPLA.

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Substrate-enhanced superconductivity in Li-decorated graphene

Abstract

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