"Физика и техника полупроводников"
Вышедшие номера
Inter atomic force constants of binary and ternary tetrahedral semiconductors
Pal Suresh1, Tiwari R.K.1, Gupta D.C.1, Saraswat Vibhav K.2, Verma A.S.2
1Department of Physics, Jiwaji University, Gwalior, India
2Department of Physics, Banasthali Vidyapith, Rajasthan, India
Email: ajay_phy@rediffmail.com
Поступила в редакцию: 16 июня 2015 г.
Выставление онлайн: 20 мая 2016 г.

In this paper, we present the expressions relating the inter atomic force constants like as bond-stretching force constant (alpha in N/m) and bond-bending force constant (beta in N/m) for the binary (zinc blende structure) and ternary (chalcopyrite structure) semiconductors with the product of ionic charges (PIC) and crystal ionicity (fi). Interatomic force constants of these compounds exhibit a linear relationship; when plot a graph between Interatomic force constants and the nearest neighbor distance d (Angstrem) with crystal ionicity (fi), but fall on different straight lines according to the product of ionic charges of these compounds. A fairly good agreement has been found between the observed and calculated values of the alpha and beta for binary and ternary tetrahedral semiconductors.
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