1.1k citations · 5.5k across the 179 of their papers we have counts for
3 papers · 1 filter
Magneto-elastic excitations in spin-Peierls systems
Michael Holicki, Holger Fehske, Ralph Werner
Within the random phase approximation to the spin-Peierls transition two parameter regimes of phonon softening and hardening are present. Magneto-elastic excitations are discussed…
Lattice dynamical effects on the Peierls transition in one-dimensional metals and spin chains
Holger Fehske, Michael Holicki, Alexander Weiße
The interplay of charge, spin and lattice degrees of freedom is studied for quasi-one-dimensional electron and spin systems coupled to quantum phonons. Special emphasis is put on t…
Optimized phonon approach for the diagonalization of electron-phonon problems
A. Weisse, H. Fehske, G. Wellein +1
We propose a new optimized phonon approach for the numerical diagonalization of interacting electron-phonon systems combining density-matrix and Lanczos algorithms. We demonstrate…