Origin of the difference in thermal conductivity and anharmonic phonon scattering between LiNbO<sub>3</sub> and LiTaO<sub>3</sub>
Yangbin Fu, Hui Wei, Lei Wei, Huadi Zhang, Xuping Wang, Bing Liu, Yuanyuan Zhang, Xianshun Lv, Jixue Zhou, Huajian Yu
Abstract
The origin of the different thermal conductivities between LiNbO 3 and LiTaO 3 stems from the different scattering channels throughout the whole Brillouin zone, as well as the different emission channels of the LA branch along the Γ – F direction.
Topics & Concepts
AnharmonicityPhononBrillouin scatteringThermal conductivityCondensed matter physicsScatteringBrillouin zonePhonon scatteringThermalMaterials scienceOpticsMolecular physicsChemistryPhysicsThermodynamicsComposite materialOptical fiberPhotorefractive and Nonlinear OpticsFerroelectric and Piezoelectric MaterialsGlass properties and applications