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, SH3at 200 GPa (the superconductor with the highest measured critical temperature), the similar system SeH3at 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 TCand the excitation spectra of superconductors.

Ab initio eliashberg theory: Making genuine predictions of superconducting features

Profeta, Gianni;
2018

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, SH3at 200 GPa (the superconductor with the highest measured critical temperature), the similar system SeH3at 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 TCand the excitation spectra of superconductors.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11697/120670
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