Superconductivity with peculiar upper critical fields in quasi-one-dimensional Cr-based pnictides
Cao Guang-Han1, †, Zhu Zeng-Wei2
       

(color online) Superconducting transition temperature Tc (left) and the electronic specific-heat coefficient (right) as functions of the lattice parameter a for A2Cr3As3 (A = Na, K, Rb, Cs).