Sökning: "multiplet calculation"
Hittade 4 avhandlingar innehållade orden multiplet calculation.
1. Multiplet computation methods for core level X-ray spectroscopy of transition metal and rare earth elements
Sammanfattning : With the development of new generation synchrotron facilities, the performances of various X-ray spectroscopies have become more advanced. In order to interpret the X-ray spectrum experiments of various novel materials related to transition metal and rare earth elements, new advanced theoretical methods are required. LÄS MER
2. Studies in field theory : supersymmetry and torsion potentials
Sammanfattning : This report contains introductions to and summaries of the papers which constitute my thesis. These papers treat four different topics: The first of these is the superspace treatment of the linear multiplet in six space-time dimensions, in particular the solution of the constraint for this multiplet. LÄS MER
3. Theory of Crystal Fields and Magnetism of f-electron Systems
Sammanfattning : A parameter free approach for the calculation of the crystal field splitting of the lowest Russel-Saunders J-multiplet in f-electron systems has been developed and applied to selected compounds. The developed theory is applicable to general symmetries and is based on symmetry constrained density functional theory calculations in the local density or in the generalised gradient approximation. LÄS MER
4. Theory of X-ray Absorption Spectra and Spin Transfer Torque
Sammanfattning : The subjects of the thesis are theoretical first principles calculations of X-ray absorption (XA) spectra and current induced spin transfer torque. XA spectra calculated from atomic multiplet theory and from band structure calculations, based on density functional theory for La0.7Sr0.3MnO3 have been compared to experiment. LÄS MER
