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Cubic C$_{20}$: An intrinsic superconducting carbon allotrope by Yu, Ying; Yan, Xun-Wang; Ma, Fengjie; Gao, Miao; Lu, Zhong-Yi is a scholarly article available to read on EtoBox.

What is Cubic C$_{20}$: An intrinsic superconducting carbon allotrope about?

Finding intrinsic carbon superconductor is an interesting topic. Based on density functional first-principles calculations, we first study the phonon-mediated superconductivity in a cubic metallic carbon allotrope, namely sc-C$_{20}$, which has been synthesized in experiment. The electron-phonon coupling is accurately computed with Wannier interpolation method. By solving the Eliashberg equations, we predict that sc-C$_{20}$ is an intrinsic carbon superconductor, without introducing any guest atoms or doping, whose transition temperature is determined to be about 24 K. Our findings enrich the family of carbon-based superconductors.

Author

Yu, Ying; Yan, Xun-Wang; Ma, Fengjie; Gao, Miao; Lu, Zhong-Yi

Published

2023

Language

EN