26 citations · 101 across the 14 of their papers we have counts for
14 papers
Charge centers in CaF: Ab initio calculation of elementary physical properties
M. Letz, L. Parthier
Charge centers in ionic crystals provide a channel for elementary interaction between electromagnetic radiation and the lattice. We calculate the electronic ground state energies w…
Spatial dispersion in CaF caused by the vicinity of an excitonic bound state
M. Letz, W. Mannstadt, M. Brinkmann +1
The microscopic mechanism beyond the optical anisotropy of an ionic crystal which occurs for short wavelengths is investigated. The electron-hole, two particle propagator and its a…
Dynamical precursor of nematic order in a dense fluid of hard ellipsoids of revolution
Th. Theenhaus, M. Letz, A. Latz +2
We investigate hard ellipsoids of revolution in a parameter regime where no long range nematic order is present but already finite size domains are formed which show orientational…
Microscopic Dynamics of Hard Ellipsoids in their Liquid and Glassy Phase
A. Latz, M. Letz, R. Schilling +1
To investigate the influence of orientational degrees of freedom onto the dynamics of molecular systems in its supercooled and glassy regime we have solved numerically the mode-cou…
Microscopic dynamics of molecular liquids and glasses: Role of orientations and translation-rotation coupling
T. Theenhaus, R. Schilling, A. Latz +1
We investigate the dynamics of a fluid of dipolar hard spheres in its liquid and glassy phase, with emphasis on the microscopic time or frequency regime. This system shows rather d…
The electron gas with a strong pairing interaction: Three particle correlations and the Thouless instability
M. Himmerich, M. Letz
We derive simplified Faddeev type equations for the three particle T-matrix which are valid in the Hubbard model where only electrons with opposite spins interact. Using the approx…