219 citations · 1k across the 42 of their papers we have counts for
7 papers · 1 filter
Magnetic switching dynamics in a ferrimagnetic two sub-lattice model including ultrafast exchange scattering
Alexander Baral, Hans Christian Schneider
We study the heat-induced magnetization dynamics in a toy model of a ferrimagnetic alloy, which includes localized spins antiferromagnetically coupled to an itinerant carrier syste…
Magnetization dynamics and damping due to electron-phonon scattering in a ferrimagnetic exchange model
Alexander Baral, Svenja Vollmar, Hans Christian Schneider
We present a microscopic calculation of magnetization damping for a magnetic "toy model." The magnetic system consists of itinerant carriers coupled antiferromagnetically to a disp…
Group-velocity slowdown in a double quantum-dot molecule
Stephan Michael, Weng W. Chow, Hans Christian Schneider
The slowdown of optical pulses due to quantum-coherence effects is investigated theoretically for an "active material" consisting of InGaAs-based double quantum-dot molecules. Thes…
Microscopic model for intersubband gain from electrically pumped quantum-dot structures
Stephan Michael, Weng W. Chow, Hans Christian Schneider
We study theoretically the performance of electrically pumped self-organized quantum dots as a gain material in the mid-IR range at room temperature. We analyze an AlGaAs/InGaAs ba…
Group-velocity slowdown in quantum-dots and quantum-dot molecules
Stephan Michael, Weng W. Chow, Hans Christian Schneider
We investigate theoretically the slowdown of optical pulses due to quantum-coherence effects in InGaAs-based quantum dots and quantum dot molecules. Simple models for the electroni…
Spin-orbit coupling effects on spin-dependent inelastic electronic lifetimes in ferromagnets
Steffen Kaltenborn, Hans Christian Schneider
For the 3d ferromagnets iron, cobalt and nickel we compute the spin-dependent inelastic electronic lifetimes due to carrier-carrier Coulomb interaction including spin-orbit couplin…