Prediction of superconductivity in Li-intercalated bilayer phosphorene

Journal Article · Mon Mar 16 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4916100· OSTI ID:22395770

Huang, G. Q. ^[1]; Xing, D. Y. ^[2]

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1. Department of Physics, Nanjing Normal University, Nanjing 210023 (China)
2. National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093 (China)

It is shown that bilayer phosphorene can be transformed from a direct-gap semiconductor to a BCS superconductor by intercalating Li atoms. For the Li-intercalated bilayer phosphorene, we find that the electron occupation of Li-derived band is small and superconductivity is intrinsic. With increasing the intercalation of Li atoms, both increased metallicity and strong electron-phonon coupling are favorable for the enhancement of superconductivity. The obtained electron-phonon coupling λ can be larger than 1 and the superconducting temperature T{sub c} can be increased up to 16.5 K, suggesting that phosphorene may be a good candidate for a nanoscale superconductor.

• OSTI ID: 22395770
• Journal Information: Applied Physics Letters, Vol. 106, Issue 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATOMS
BCS THEORY
CLATHRATES
ELECTRON-PHONON COUPLING
ELECTRONS
LAYERS
LITHIUM
METALLICITY
NANOSTRUCTURES
PHOSPHORUS
SEMICONDUCTOR MATERIALS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSITION TEMPERATURE