Electronic density of state

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Energy Gap Dependence on Anion Concentration for Gax In1-AsyP1-Y Quaternary Alloy by Recursion Method

Journal Title, Volume, Page: 
MODERN PHYSICS LETTERS, B 18, 955 (2004). DOI: 10.1142/S0217984904007463
Year of Publication: 
2004
Authors: 
MUSA EL-HASAN
Department of Physics, Faculty of Sciences, An-Najah National University, Palestine
Current Affiliation: 
Department of Physics, Faculty of Sciences, An-Najah National University, Palestine
REZEK ESTATIEH
Palestine College Of Technology, Tulkarem, Palestine
Preferred Abstract (Original): 
Three terminators have been tested, square root terminator, quadreture terminator and linear terminator, it was found that the linear terminator is the best, so it was used in calculating local density of states (LDOS) and it's orbital decomposition, alloy average density of states, and energy gap for different anion concentrations for InP lattice matched alloy. The results were compared with our previous calculations of (LDOS), and results from other methods. Energy gap was compared with experimental measurements. A five orbital sp3s* per atom model was used in the tight-binding representation of the Hamiltonian.
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