Sökning: "calculations"
Visar resultat 16 - 20 av 2396 avhandlingar innehållade ordet calculations.
16. Electronic Structure Calculations of Point Defects in Semiconductors
Sammanfattning : In this thesis point defects in semiconductors are studied by electronic structure calculations. Results are presented for the stability and equilibrium concentrations of native defects in GaP, InP, InAs, and InSb, for the entire range of doping conditions and stoichiometry. LÄS MER
17. Total-energy calculations with the effective-medium theory
Sammanfattning : .... LÄS MER
18. Electronic Structure Calculations: Materials with Weak and Strong Correlations
Sammanfattning : This thesis is devoted to studies of various electronic properties which can be extracted from photoemission spectroscopy. Both weakly and strongly correlated systems are discussed, ranging from free electron metal surfaces to strongly correlated copper oxide compounds. LÄS MER
19. Surface Vibrational and Electron Spectroscopy - Experiments and first-principle calculations
Sammanfattning : This work deals with interpretation of experimental surface spectroscopic data with the aid of first-principle calculations. Surface infrared reflection-absorption spectra as well as spectra from the electron spectroscopic methods photoemission and X-ray absorption are considered. LÄS MER
20. Symbolic computer calculations in general relativity
Sammanfattning : This report describes programs for symbolic computer calculations in General Relativity and results obtained by such programs. A perturbation calculation to obtain an approximate geometry from a given physically acceptable distribution of matter is presented. A program for classifying solutions of Einstein's field equations is presented. LÄS MER