Sökning: "spin correlation"
Visar resultat 11 - 15 av 82 avhandlingar innehållade orden spin correlation.
11. Correlated Electronic Structure of Materials : Development and Application of Dynamical Mean Field Theory
Sammanfattning : This thesis is dedicated to the development, implementation and application of a combination of Density Functional Theory and Dynamical Mean Field Theory. The resulting program is shown through several examples to be a powerful and flexible tool for calculating the electronic structure of strongly correlated materials. LÄS MER
12. Protein Dynamics Studied by NMR Spin Relaxation. Conformational Transitions of a Calmodulin Mutant
Sammanfattning : Binding of calcium to the protein calmodulin leads to molecular reorganization that enables interaction with target peptides and activation of downstream processes. I have studied the dynamics of the calcium-loaded form of a C-terminal calmodulin mutant (E140Q-Tr2C) using NMR spin relaxation experiments. LÄS MER
13. NMR Studies of Inclusion Compounds
Sammanfattning : This thesis presents the application of some of the NMR methods in studying host-guest complexes, mainly in solution. The general focus of the work is on investigating the reorientational dynamics of some small molecules that are bound inside cavities of larger moieties. LÄS MER
14. Ultrafast spin, lattice, and electron dynamics in thin metallic films : in the terahertz, near-infrared, and extreme ultraviolet regimes
Sammanfattning : In this thesis, we studied the ultrafast spin and electron dynamics triggered by electromagnetic radiation belonging to three different regions of the electromagnetic spectrum, namely terahertz, near-infrared and extreme ultraviolet. By performing pump–probe measurements, we explored the role of the lattice in ultrafast spin and electron dynamics in metallic thin films. LÄS MER
15. Role of charge and spin fluctuations and their interplay in solids : A Green’s function approach
Sammanfattning : Due to the large number of electrons, solid state physics boils down to many-body approximations in which only selected types of collective excitations are taken into account, guided by the emergent properties of the material under study. In this thesis, the collective excitations of primary interest are electronic charge and spin fluctuations(plasmons and magnons) and nuclear charge fluctuations (phonons). LÄS MER