Problem Consider a two dimensional square lattice with one

Last updated: 6/25/2023

Problem Consider a two dimensional square lattice with one atom of mass m per lattice point interacting with 4k qa only nearest neighbours with force constant k Take the phonon dispersion curve to be m sin 2 At high temperature kT ho the mean square displacement of an atom from its equilibrium position will be a kT k b 2KT c 4k 2kT d 4