Static and Vibrational Properties of Equiatomic Cesium-Alkali Binary Alloys
The computations of the static and vibrational properties of four equiatomic Cs-based binary alloys viz. Cs0.5Li0.5, Cs0.5Na0.5, Cs0.5K0.5 and Cs0.5Rb0.5 to second order in local model potential is discussed in terms of real-space sum of Born von Karman central force constants. The local field corre...
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| Language: | English |
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Sumy State University
2012-07-01
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| Series: | Журнал нано- та електронної фізики |
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| Online Access: | http://jnep.sumdu.edu.ua/download/numbers/2012/2/articles/jnep_2012_V4_02025.pdf |
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| author | Aditya M. Vora |
| author_facet | Aditya M. Vora |
| author_sort | Aditya M. Vora |
| collection | DOAJ |
| description | The computations of the static and vibrational properties of four equiatomic Cs-based binary alloys viz. Cs0.5Li0.5, Cs0.5Na0.5, Cs0.5K0.5 and Cs0.5Rb0.5 to second order in local model potential is discussed in terms of real-space sum of Born von Karman central force constants. The local field correlation functions due to Hartree (H), Ichimaru-Utsumi (IU) and Sarkar et al. (S) are used to investigate influence of the screening effects on the aforesaid properties. Results for the lattice constants, i.e. С11, С12, С44, С12 – С44, С12 / С44, and bulk modulus B obtained using the H-local field correction function, have higher values in comparison with the results obtained for the same properties using IU and S local field correction functions. The results for the Shear modulus (C), deviation from Cauchy’s relation, Poisson’s ratio , Young modulus Y, propagation velocity of elastic waves, phonon dispersion curves and degree of anisotropy A are highly appreciable for the four equiatomic Cs-based binary alloys. |
| format | Article |
| id | doaj-art-26749205db6e4c909f7209c2ae801a4e |
| institution | OA Journals |
| issn | 2077-6772 |
| language | English |
| publishDate | 2012-07-01 |
| publisher | Sumy State University |
| record_format | Article |
| series | Журнал нано- та електронної фізики |
| spelling | doaj-art-26749205db6e4c909f7209c2ae801a4e2025-08-20T02:04:26ZengSumy State UniversityЖурнал нано- та електронної фізики2077-67722012-07-0142020251Static and Vibrational Properties of Equiatomic Cesium-Alkali Binary AlloysAditya M. VoraThe computations of the static and vibrational properties of four equiatomic Cs-based binary alloys viz. Cs0.5Li0.5, Cs0.5Na0.5, Cs0.5K0.5 and Cs0.5Rb0.5 to second order in local model potential is discussed in terms of real-space sum of Born von Karman central force constants. The local field correlation functions due to Hartree (H), Ichimaru-Utsumi (IU) and Sarkar et al. (S) are used to investigate influence of the screening effects on the aforesaid properties. Results for the lattice constants, i.e. С11, С12, С44, С12 – С44, С12 / С44, and bulk modulus B obtained using the H-local field correction function, have higher values in comparison with the results obtained for the same properties using IU and S local field correction functions. The results for the Shear modulus (C), deviation from Cauchy’s relation, Poisson’s ratio , Young modulus Y, propagation velocity of elastic waves, phonon dispersion curves and degree of anisotropy A are highly appreciable for the four equiatomic Cs-based binary alloys.http://jnep.sumdu.edu.ua/download/numbers/2012/2/articles/jnep_2012_V4_02025.pdfStatic and vibrational propertiesCs-based equiatomic alloysPhonon dispersion curves (PDC |
| spellingShingle | Aditya M. Vora Static and Vibrational Properties of Equiatomic Cesium-Alkali Binary Alloys Журнал нано- та електронної фізики Static and vibrational properties Cs-based equiatomic alloys Phonon dispersion curves (PDC |
| title | Static and Vibrational Properties of Equiatomic Cesium-Alkali Binary Alloys |
| title_full | Static and Vibrational Properties of Equiatomic Cesium-Alkali Binary Alloys |
| title_fullStr | Static and Vibrational Properties of Equiatomic Cesium-Alkali Binary Alloys |
| title_full_unstemmed | Static and Vibrational Properties of Equiatomic Cesium-Alkali Binary Alloys |
| title_short | Static and Vibrational Properties of Equiatomic Cesium-Alkali Binary Alloys |
| title_sort | static and vibrational properties of equiatomic cesium alkali binary alloys |
| topic | Static and vibrational properties Cs-based equiatomic alloys Phonon dispersion curves (PDC |
| url | http://jnep.sumdu.edu.ua/download/numbers/2012/2/articles/jnep_2012_V4_02025.pdf |
| work_keys_str_mv | AT adityamvora staticandvibrationalpropertiesofequiatomiccesiumalkalibinaryalloys |