29 citations · 98 across the 5 of their papers we have counts for
5 papers
Discrimination of Chiral and Helical Contributions to Raman Scattering of Liquid Crystals using Vortex Beams
Silvia Müllner, Florian Büscher, Angela Möller +1
We use vortex photon fields with orbital and spin angular momentum to probe chiral fluctuations within liquid crystals. In the regime of iridescence with a well-defined pitch lengt…
Lattice and orbital fluctuations in TiPO4
Dirk Wulferding, Angela Möller, Kwang-Yong Choi +7
In the s = 1/2 antiferromagnetic spin chain material TiPO4 the formation of a spin gap takes place in a two step process with two characteristic temperatures, T*=111 K and TSP=74 K…
Enhanced quasiparticle dynamics of quantum well states: the giant Rashba system BiTeI and topological insulators
V. Gnezdilov, P. Lemmens, D. Wulferding +5
In the giant Rashba semiconductor BiTeI electronic surface scattering with Lorentzian linewidth is observed that shows a strong dependence on surface termination and surface potent…
Superposition of ferromagnetic and antiferromagnetic spin chains in the quantum magnet BaAg2Cu[VO4]2
Alexander A. Tsirlin, Angela Moeller, B. Lorenz +2
Based on density functional theory band structure calculations, quantum Monte-Carlo simulations, and high-field magnetization measurements, we address the microscopic magnetic mode…
Collective orbital excitations in orbitally ordered YVO3 and HoVO3
E. Benckiser, R. Rückamp, T. Möller +6
We study orbital excitations in the optical absorption spectra of YVO3 and HoVO3. We focus on an orbital absorption band observed at 0.4 eV for polarization E parallel c. This feat…