Lattice thermal conductivity of topological insulator Bi<sub>2</sub>Se<sub>3</sub> nanocrystals: comparison from theoretical and experimental
K E Vipin, Soumendra Kumar Das, Prahallad Padhan
Abstract
Phonon lifetime and lattice thermal conductivity ( κ ) of Bi 2 Se 3 calculated from Raman scattering and PHONO3PY simulation indicate the anharmonicity, dissipation of heat, and overlapping and coupling of low and high-frequency branches are important parameters to control the κ .
Topics & Concepts
NanocrystalThermal conductivityTopological insulatorMaterials scienceCondensed matter physicsLattice (music)ConductivityInsulator (electricity)Topology (electrical circuits)CrystallographyNanotechnologyPhysicsChemistryPhysical chemistryOptoelectronicsMathematicsCombinatoricsAcousticsComposite materialTopological Materials and PhenomenaAdvanced Thermoelectric Materials and DevicesPhase-change materials and chalcogenides