Anisotropic upper critical field in the van der Waals superconducting quasicrystal (Ta${}_{0.7}$Nb${}_{0.3}$)${}_{1.6}$Te

Koki Kasai, Yuki Tokumoto, Taichi Terashima +2

We investigated the upper critical field of a large single grain of the Nb-substituted van der Waals layered quasicrystal (Ta${}_{0.7}$Nb${}_{0.3}$)${}_{1.6}$Te. The sample exhibits a sh…