Lattice dynamics of beryllium |
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| Authors: | B A Dasannacharya P K Iyengar R V Nandedkar K R Rao A P Roy C L Thaper |
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| Institution: | (1) Nuclear Physics Division, Bhabha Atomic Research Centre, 400085 Trombay, Bombay |
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| Abstract: | Phonon frequencies in beryllium along the principal symmetry directions have been determined by means of the slow neutron
inelastic scattering technique. The data are analysed in terms of a six-neighbour force constant model and the force constants
are evaluated. It is concluded that strong tensor forces are present in beryllium and the importance of this finding to basic
theories of lattice dynamics is pointed out. |
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| Keywords: | Lattice dynamics phonons beryllium neutron scattering |
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