Electronic band structure, Fermi surface, and elastic properties of new 4.2K superconductor SrPtAs from first-principles calculations

Abstract

The hexagonal phase SrPtAs (s.g. P6/mmm; #194) with a honeycomb lattice structure very recently was declared as a new low-temperature (TC ~ 4.2K) superconductor. Here by means of first-principles calculations the optimized structural parameters, electronic bands, Fermi surface, total and partial densities of states, inter-atomic bonding picture, independent elastic constants, bulk and shear moduli for SrPtAs were obtained for the first time and analyzed in comparison with the related layered superconductor SrPt2As2.

8 pages, 4 figures

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Cited by in corpus (9)

• Exploration of new superconductors and functional materials and fabrication of superconducting tapes and wires of iron pnictides
• Evidence for Time-Reversal-Symmetry-Broken Superconductivity in Locally Noncentrosymmetric SrPtAs
• Evidence for two energy gaps and Fermi liquid behavior in SrPt${}_2$As${}_2$ superconductor
• The coexistence of charge density wave and superconductivity in Pt-based layered superconductors : SrPt${}_2$As${}_2$ and LaPt${}_2$Si${}_2$
• Superconductivity in 122-type antimonide BaPt${}_2$Sb${}_2$
• Single crystal growth and optical conductivity of SrPt${}_2$As${}_2$ superconductors
• Full Relativistic Electronic Structure and Fermi Surface Sheets of the First Honeycomb-Lattice Pnictide Superconductor SrPtAs
• Possibility of charge density wave transition in SrPt${}_2$Sb${}_2$ superconductor
• Electronic Transport and Fermi Surface Topology of Zintl Phase Compound SrZn2Ge2