Izvorni znanstveni članak
Theoretical analysis of the effect of carrier degeneracy on the screening length in degenerate ternary chalcopyrite semiconductors
Kamakhyap Ghatak
; Centre of Advanced Study in Radio Physics and Eleetronics, J, Girish Vidyaratna Lane, Calcutta-700009, India
Manabendra Mondal
; Department of Physics, University College of Science and Technology, 92, Acharya Prafulla Chandra Road, Calcutta-700009, India
Sažetak
An attempt is made to study theoretically the effect of carrier degeneracy on the Debye -screening length of the carriers in ternary chalcopyrite semiconductors, taking degenerate n-CdGeAs2 as an example. It is found on the basis of a newly derived electron energy spectrum which includes various types of anisotropies in the energy spectrum that the screening length decreases with increasing electron concentration as expected for degenerate semiconductors and tetragonal crystal field effectively reduces the same length. Besides, the corresponding well-known results for isotropic parabolic energy bands are also obtained from the expressions derived.
Ključne riječi
Hrčak ID:
331136
URI
Datum izdavanja:
2.12.1986.
Posjeta: 529 *