To Study the Effect of Point Imperfections on Lattice Thermal Conductivity

Author(s)	Dr. Prakash Dubey, Dr. Jyoti Bhadauria
Country	India
Abstract	Lattice thermal conductivity is a crucial property determining heat transport in crystalline solids. Point imperfections, including vacancies, interstitials, and substitutional defects, disrupt the periodic lattice and act as scattering centers for phonons, thereby reducing thermal conductivity. This study explores the theoretical basis and quantitative effects of point imperfections on lattice thermal conductivity. Simulated data and graphs are provided to illustrate trends, highlighting the dependence of conductivity on defect concentration and temperature. The findings have implications for thermoelectric materials and solid-state devices.
Keywords	Lattice Thermal Conductivity, Point Defects, Phonon Scattering, Vacancies, Interstitials, Substitutional Defects, Thermal Transport, Defect Concentration, Phonon Mean Free Path, Crystalline Solids, Heat Conduction, Thermal Resistance, Material Defects, Solid-State Physics
Published In	Volume 16, Issue 4, October-December 2025
Published On	2025-10-12

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