Nat.Comm.13, 2773 M Shi

A new class of bilayer kagome lattice compounds with Dirac nodal lines and pressure-induced superconductivity¶

Journal Ref. Nature Communications 13, 2773(2022)

Keywords¶

Superconductivity Kagome metal

Idea of the paper¶

Study of a compound \(AV_6Sb_6\) and \(V_6Sb_4\) which are bilayer variants of the well known AV3Sb5 family. The pressure dependent phase diagram is obtained and is compared with AV3Sb5 general properties. The idea is to study the phenomena of Superconductivity in AV6Sb6 family of compounds.

Summary¶

AV6Sb6 family are bilayer compounds of the AV3Sb5 family which has very rich and interesting properties (read AV3Sb5 general properties). All the members of the family show close resemblance in properties and electronic structure. While the AV6Sb6 DFT properties are slightly different from AV3Sb5 DFT studies, both shows the existence of Dirac nodal lines and emergence of Superconductivity due to pressure. Here the author suggests that the SC transition appears at the minima of residual resistivity ratio(RRR) implying a structural transition which in this case is from Rhombohedral to Monoclinic.

CsV6Sb6 ARPES studies shows confirmation for DFT results as well.