Автори | Aditya M. Vora |
Афіліація | Humanities and Social Science Department, S. T. B. S. College of Diploma Engineering, Shri Swami Atmanand Sarswati Vidya Sankul, Opp. Kapodra Police Station,Varachha Road, Surat 395 006, Gujarat, India |
Е-mail | voraam@yahoo.com |
Випуск | Том 4, Рік 2012, Номер 2 |
Дати | Received 01 March 2012; published online 04 July 2012 |
Цитування | Aditya M. Vora, J. Nano-Electron. Phys. 4 No 2, 25 (2012) |
DOI | |
PACS Number(s) | 2.30. + d; 62.20. – x; 62.20.Dc; 63.50. + x |
Ключові слова | Static and vibrational properties, Cs-based equiatomic alloys, Phonon dispersion curves (PDC). |
Анотація | 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. |
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