Superconductivity in bilayer graphene intercalated with alkali and alkaline earth metals

Physical Chemistry Chemical Physics : PCCP
Artur P DurajskiRadosław Szcze Combining Cedilla Śniak

Abstract

With the enormous research activity focused on graphene in recent years, it is not surprising that graphene superconductivity has become an attractive area of research. To date, no superconducting properties have been experimentally observed in the pristine form of graphene but controllable structure manipulation is a promising way to induce a superconducting state in graphene-based systems. Therefore, herein we investigate the possible superconductivity in two-layer graphene intercalated with atoms of alkali and alkaline earth metals. Results of our calculations conducted within the framework of density functional theory combined with the Eliashberg theory allow us to conclude that the Cooper pairing in these superconductors can be described in a standard phonon-mediated scenario. In this regime, C6XC6 (X = K, Ca, Rb and Sr) are expected to be superconductors with estimated superconducting critical temperatures of 5.47-14.56 K and with the ratios of energy gap to transition temperature exceeding the value predicted by the Bardeen-Cooper-Schrieffer theory.

References

Apr 1, 1988·Physical Review. B, Condensed Matter·F MarsiglioJ P Carbotte
Oct 1, 1995·Physical Review. B, Condensed Matter·L PietroneroC Grimaldi
Oct 1, 1995·Physical Review. B, Condensed Matter·C GrimaldiS Strässler
Oct 23, 2004·Science·K S NovoselovA A Firsov
Oct 4, 2005·Physical Review Letters·N EmeryG Loupias
Dec 31, 2005·Physical Review Letters·Matteo Calandra, Francesco Mauri
Jul 21, 2009·Chemical Reviews·Matthew J AllenRichard B Kaner
Sep 30, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Paolo GiannozziRenata M Wentzcovitch
May 17, 2012·Physical Review Letters·Patrick VogtGuy Le Lay
May 8, 2015·Physical Chemistry Chemical Physics : PCCP·Vadym V KulishPing Wu
Sep 10, 2015·Proceedings of the National Academy of Sciences of the United States of America·B M LudbrookA Damascelli
Jan 28, 2016·ACS Nano·Satoru IchinokuraShuji Hasegawa
Mar 17, 2016·Scientific Reports·J ChapmanR R Nair
Jul 2, 2017·Scientific Reports·Artur P Durajski, Radosław Szczęśniak
Mar 8, 2018·Nature·Yuan CaoPablo Jarillo-Herrero
Apr 28, 2018·Physical Chemistry Chemical Physics : PCCP·Bao-Tian WangFangwei Wang
Aug 24, 2018·The Journal of Chemical Physics·Artur P Durajski, Radosław Szczȩśniak
Oct 18, 2018·Physical Chemistry Chemical Physics : PCCP·H H HuangW T Zheng

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Citations

Oct 5, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Ming-Yang LiuYao He
Jan 21, 2021·Physical Chemistry Chemical Physics : PCCP·Artur P DurajskiRadosław Szczęśniak

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