Unexpected low thermal conductivity and large power factor in Dirac semimetal Cd<sub>3</sub>As<sub>2</sub>

Unexpected low thermal conductivity and large power factor in Dirac semimetal Cd₃As₂

Zhang Cheng^{1, 2}, Zhou Tong^{1, 2, 3}, Liang Sihang^{1, 2}, Cao Junzhi^{1, 2}, Yuan Xiang^{1, 2}, Liu Yanwen^{1, 2}, Shen Yao^{1, 2}, Wang Qisi^{1, 2}, Zhao Jun^{1, 2}, Yang Zhongqin^{1, 2, 3}, Xiu Faxian^{1, 2, †,}

Thermal transport properties of the undoped Cd₃As₂. (a)–(d) Temperature-dependent thermal conductivity, Seebeck coefficient, ZT and PF of the undoped Cd₃As₂, respectively. The inset in panel (a) is the extracted electron and lattice thermal conductivity based on the Wiedemann–Franz law.