Superconductivity in BaPtSb with an Ordered Honeycomb Network

Superconductivity in BaPtSb with an Ordered Honeycomb Network

Superconductivity in BaPtSb with the SrPtSb-type structure (space group P6 ¯ m2P6m2, D13h, No. 187) is reported. The structure consists of a PtSb ordered honeycomb network that stacks along the c-axis so that spatial inversion symmetry is broken globally. Electrical resistivity and specific-heat mea...

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Veröffentlicht in:Journal of the Physical Society of Japan 2018-06, Vol.87 (6), p.63702
Hauptverfasser: Kudo, Kazutaka, Saito, Yuki, Takeuchi, Takaaki, Ayukawa, Shin-ya, Kawamata, Takayuki, Nakamura, Shinichiro, Koike, Yoji, Nohara, Minoru
Format: Artikel
Sprache:eng
Schlagworte:
Coupling (molecular)
Heat conductivity
Honeycomb construction
Spin-orbit interactions
Superconductivity
Symmetry
Topological manifolds
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Zusammenfassung:Superconductivity in BaPtSb with the SrPtSb-type structure (space group P6 ¯ m2P6m2, D13h, No. 187) is reported. The structure consists of a PtSb ordered honeycomb network that stacks along the c-axis so that spatial inversion symmetry is broken globally. Electrical resistivity and specific-heat measurements revealed that the compound exhibited superconductivity at 1.64 K. The noncentrosymmetric structure and the strong spin–orbit coupling of Pt and Sb make BaPtSb an attractive compound for studying the exotic superconductivity predicted for a honeycomb network.
ISSN:0031-9015
1347-4073
DOI:10.7566/JPSJ.87.063702