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Paper detail

Superconductivity in the nonsymmorphic line-nodal compound CaSb$_2$

We found superconductivity in CaSb$_2$ with the transition temperature of 1.7 K by means of electrical-resistivity, magnetic-susceptibility, and specific-heat measurements. This material crystallizes in a nonsymmorphic structure and is predicted to have multiple Dirac nodal lines in the bulk electronic band structure protected by symmetry even in the presence of spin-orbit coupling. We discuss a possible topological superconductivity for the quasi-2-dimensional band originating mainly from one of the antimony sites.

preprint2020arXivOpen access
Atsutoshi IkedaMayo KawaguchiShun KoibuchiTatsuki HashimotoTakuto KawakamiShingo YonezawaMasatoshi SatoYoshiteru Maeno
cond-mat.supr-con
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Atsutoshi IkedaMayo KawaguchiShun KoibuchiTatsuki HashimotoTakuto KawakamiShingo YonezawaMasatoshi SatoYoshiteru Maeno

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