Strong Intra- and Interchain Orbital Coupling Leads to Multiband and High Thermoelectric Performance in Na${}_2$Au$X$ ($X$ = P, As, Sb, and Bi)

Zhonghao Xia, Zhilong Yang, Yali Yang +2

The intrinsic coupling among electrical conductivity ($\sigma$), Seebeck coefficient ($S$), and lattice thermal conductivity (${\kappa }_{\mathrm{L}}$) imposes a fundamental limit on the dimens…