Observation of superconductivity and its enhancement at the charge density wave critical point in LaAgSb${}_2$

Kazuto Akiba, Nobuaki Umeshita, Tatsuo C. Kobayashi

We discover superconductivity (SC) in LaAgSb${}_2$ at ambient pressure and its close correlation with a charge density wave (CDW) under pressure. The superconducting transition tempe…