Lattice Dynamics of Metallic Glass Ca70Mg30 on the Model of Bhatia and Singh |
| M.M. Shukla Departamento de Fisica, UNESP, Bauru, C.P. 473, 17033-360, Bauru, SP, Brasil and J.R. Campanha Departamento de Fisica, UNESP, Rio Claro, C.P. 178, 13500-230, Rio Claro, SP, Brasil |
| Received: September 2, 1997; in final form August 25, 1998 |
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| The lattice dynamical studies of the metallic glass Ca70Mg30 by Bhatia and Singh on their model contained two shortcomings, firstly the electron-ion interaction matrix was wrong and secondly, the numerical value of the bulk modulus of the electron gas was accepted arbitrarily. By modifying the electron-ion dynamical matrix and determining all the model parameters from the experimental data, we made a fresh study of the lattice dynamics of Ca70Mg30 and compared it to the earlier studies of Bhatia and Singh and also with experimental phonons. |
| DOI: 10.12693/APhysPolA.94.655 PACS numbers: 63.50.+x |