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Lattice Vibrations of Cu 2 O at the Long Wave Limit
Author(s) -
Carabatos C.
Publication year - 1970
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19700370228
Subject(s) - brillouin zone , phonon , cuprite , condensed matter physics , lattice (music) , lattice vibration , physics , force constant , vibration , lattice constant , empty lattice approximation , particle in a one dimensional lattice , materials science , quantum mechanics , reciprocal lattice , diffraction , copper , molecule , acoustics , metallurgy
A study of the lattice dynamics of cuprite at the centre of the Brillouin zone is made and the force constants and the effective charge deduced. The energies of the optically inactive phonons are calculated and their symmetry determined. The symmetry of the upper valence band of the crystal is identified.