## Phonons in condensed matter physics |

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### Contents

Lattice Dynamics of Complex CrystalsK R | 3 |

Phonons in Graphite and Its Alkali Intercalation Compounds | 20 |

Microscopic Theories and Phenomenological Models in Lattice | 35 |

Copyright | |

16 other sections not shown

### Common terms and phrases

a-Si acoustic alloys angular anharmonic approach approximation atoms attenuation average behaviour Bethe lattice calculated Chem cluster computer simulation concentration configuration corresponding Coulomb density dependence diffusion discussed disordered systems dispersion curves dispersion relation displacements Dresselhaus effects elastic constants electronic excitations experimental ferroelectric force constants given graphite Green's function halides impurity incommensurate interaction intercalation ionic solids K.R. Rao lattice dynamics Lett macrocell metals method microscopic mixed crystals modes molecular molecular dynamics molecules momentum nearest neighbour neutron scattering NH4+ obtained parameters particles Pawley peak phase transition phasons phonon dispersion phonon frequencies Phys Physics potential energy pressure properties pseudopotential Raman Raman scattering rotational S.A. Solin S.L. Chaplot semiconductor Sengupta shell model short range shown in Fig Singh Solin specific heat spectrum static structure symmetry T.M. Haridasan technique temperature tensor theoretical theory thermal tion TOEC Trombay ultrasonic unit cell values variation vibrational wave vector