Ab initio eliashberg theory: Making genuine predictions of superconducting features

Antonio Sanna*, José A. Flores-Livas, Arkadiy Davydov, Gianni Profeta, Kay Dewhurst, Sangeeta Sharma, E. K.U. Gross

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

72 Scopus citations

Abstract

We present an application of Eliashberg theory of superconductivity to study a set of novel superconducting systems with a wide range of structural and chemical properties. The set includes three intercalated group-IV honeycomb layered structures, SH3 at 200 GPa (the superconductor with the highest measured critical temperature), the similar system SeH3 at 150 GPa, and a lithium doped mono-layer of black phosphorus. The theoretical approach we adopt is a recently developed, fully ab initio Eliashberg approach that takes into account the Coulomb interaction in a full energy-resolved fashion avoiding any free parameters like μ+. This method provides reasonable estimations of superconducting properties, including TC and the excitation spectra of superconductors.

Original languageAmerican English
Article number041012
JournalJournal of the Physical Society of Japan
Volume87
Issue number4
DOIs
StatePublished - 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
©2018 The Physical Society of Japan

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