Origin of the unique thermoelectric transport in Mg<sub>3</sub>(Sb,Bi)<sub>2</sub>: absence of d-orbital bonding in crystal cohesion
Ruoyu Wang, Zhe Guo, Qiang Zhang, Jianfeng Cai, Guoqiang Liu, Xiaojian Tan, Jun Jiang
Abstract
Owing to the small periodic number of Mg, the absence of d-orbital bonding is responsible for Mg 3 (Sb,Bi) 2 's unique conduction band dispersion and extraordinarily low lattice thermal conductivity.
Topics & Concepts
Condensed matter physicsThermoelectric effectThermal conductionMaterials scienceConduction bandCohesion (chemistry)Crystal structureThermal conductivityLattice (music)CrystallographyThermoelectric materialsChemistryPhysicsElectronThermodynamicsComposite materialQuantum mechanicsAcousticsAdvanced Thermoelectric Materials and DevicesHeusler alloys: electronic and magnetic propertiesThermal properties of materials