Pronounced - Log T Divergence in Specific Heat of Nonmetallic CeOBiS${}_2$: A Mother Phase of BiS${}_2$-Based Superconductor

Ryuji Higashinaka, Takuya Asano, Takuya Nakashima +5

The low-temperature properties of CeOBiS${}_2$ single crystals are studied by electrical resistivity, magnetization, and specific heat measurements. Ce 4f -electrons are found to be…