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dc.contributor.authorBian, Qiuping.en_US
dc.date.accessioned2009-06-15T17:00:46Z
dc.date.available2009-06-15T17:00:46Z
dc.date.issued2005-06-15T17:00:46Z
dc.identifier.urihttp://hdl.handle.net/10464/1628
dc.description.abstractBy employing the embedded-atom potentials of Mei et ai.[l], we have calculated the dynamical matrices and phonon dispersion curves for six fee metals (Cu,Ag,Au,Ni,Pd and Pt). We have also investigated, within the quasiharmonic approximation, some other thermal properties of these metals which depend on the phonon density of states, such as the temperature dependence of lattice constant, coefficient of linear thermal expansion, isothermal and adiabatic bulk moduli, heat capacities at constant volume and constant pressure, Griineisen parameter and Debye temperature. The computed results are compared with the experimental findings wherever possible. The comparison shows a generally good agreement between the theoretical values and experimental data for all properties except the discrepancies of phonon frequencies and Debye temperature for Pd, Pt and Au. Further, we modify the parameters of this model for Pd and Pt and obtain the phonon dispersion curves which is in good agreement with experimental data.en_US
dc.language.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectPhononsen_US
dc.subjectQuasiparticles (Physics)en_US
dc.subjectIron groupen_US
dc.subjectMetalsen_US
dc.titlePhonon spectra and thermal properties of some fcc metals using embedded-atom potentials /en_US
dc.typeElectronic Thesis or Dissertationen_US
dc.degree.nameM.Sc. Physicsen_US
dc.degree.levelMastersen_US
dc.contributor.departmentDepartment of Physicsen_US
dc.degree.disciplineFaculty of Mathematics and Scienceen_US


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