1984
DOI: 10.1002/pssb.2221250105
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Low‐Temperature Lattice Thermal Conductivity of Nonmetallic Solids with Isotopic Impurities

R. P. Gairola

Abstract: Using thermodynamic Green's function technique, i t is shown that the inclusion of anharmonic terms along with the mass and force constant change terms arising due t o isotopic impurities in the crystal Hamiltonian, leads to a cross term P A D of defect with anharmonic parameters in the expression for the phonon width. This interaction term TAD, which varies as Dw3T, contributes significantly in the vicinity of thermal conductivity maximum, thereby giving a good agreement between theory and experiment, 88 seen… Show more

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Cited by 15 publications
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