Phonon-Dominated Thermal Transport and Large Violation of the Wiedemann-Franz Law in Topological Semimetal CoSi

Luyao Zhong, Xin Jin, Mingquan He +4

The Wiedemann-Franz (WF) law, relating the electronic thermal conductivity (${\kappa }_{\mathrm{e}}$) to the electrical conductivity, is vital in numerous applications such as in the design of…