Quantum Criticality by Interaction Frustration in a Square-Planar Lattice

Yi-Qiang Lin, Chang-Chao Liu, Jia-Xin Li +16

We report experimental and theoretical investigations on ThCr${}_2$Ge${}_2$C, a metallic compound in which Cr${}_2$C planes form a square-planar lattice. Neutron powder diffraction, magn…