| Phonon Dispersion in Ca70Mg30 Metallic Glass |
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| 作者姓名： | Aditya M. Vora |
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| 作者单位： | Sadhu Vaswani International School, 12/C Lilashah Nagar, Gandhidham （Kutch） 370 201, Gujarat, India |
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| 摘 要： | The phonon dispersion curves （PDC） of Ca70Mg30 metallic glass has been studied at room temperature in terms of phonon eigen frequencies of longitudinal and transverse modes employing three different approaches proposed by Hubbard and Beeby （J. Phys. C： Solid State Phys. 13 （1969） 556）, Takeno and Goda （Prog. Theor. Phys. 45 （1971） 331; 47 （1972） 790） and Bhatia and Singh （Phys. Rev. B 31 （1985） 4751）. The well recognized model potential of Gajjar et al. is employed successfully to explain electron-ion interaction in the metallic glass. The effective pair potential is used to generate the pair correlation function g（r）. The local field correction function （Int. J. Mod. Phys. B 17 （2003） 6001） is used for the first time to introduce the exchange and correlation effects on the aforesaid properties. The present findings of PDCs are found to be in agreement with the available theoretical as well as experimental data. The thermodynamic and elastic properties, i.e. longitudinal and transverse sound velocities, isothermal bulk modulus, modulus of rigidity, Poisson＇s ratio, Young＇s modulus and Debye temperature, are also investigated successfully.
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| 关 键 词： | 声子散射 Ca70Mg30金属玻璃 横向模式 原子核物理 |
| 收稿时间： | 2005-11-14 |
| 修稿时间： | 2005-11-14 |
Phonon Dispersion in Ca70Mg30 Metallic Glass |
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| Aditya M. Vora.Phonon Dispersion in Ca70Mg30 Metallic Glass[J].Chinese Physics Letters,2006,23(7):1872-1875. |
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| Authors: | Aditya;M;Vora |
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