311 citations · 450 across the 7 of their papers we have counts for
7 papers
Orbital textures and charge density waves in transition metal dichalcogenides
T. Ritschel, J. Trinckauf, K. Koepernik +6
Low-dimensional electron systems, as realized naturally in graphene or created artificially at the interfaces of heterostructures, exhibit a variety of fascinating quantum phenomen…
Electronic structure of KTi(SO4)2.H2O - a S=1/2 frustrated chain antiferromagnet
Deepa Kasinathan, K. Koepernik, O. Janson +4
The compound KTi(SO4)2.H2O was recently reported as a quasi one-dimensional spin 1/2 compound with competing antiferromagnetic nearest neighbor exchange J1 and next-nearest neighbo…
Plasmon Evolution and Charge-Density Wave Suppression in Potassium Intercalated Tantalum Diselenide
A. König, K. Koepernik, R. Schuster +4
We have investigated the influence of potassium intercalation on the formation of the charge-density wave (CDW) instability in 2H-tantalum diselenide by means of Electron Energy-Lo…
Density-functional investigation of rhombohedral stacks of graphene: topological surface states, nonlinear dielectric response, and bulk limit
Ruijuan Xiao, F. Tasnádi, K. Koepernik +3
A DFT-based investigation of rhombohedral (ABC)-type graphene stacks in finite static electric fields is presented. Electronic band structures and field-induced charge densities ar…
Electronic confinement and ordering instabilities in colossal magnetoresistive bilayer manganites
J. Trinckauf, T. Hänke, V. Zabolotnyy +11
We present angle-resolved photoemission studies of (La1-zPrz)2-2xSr1+2xMn2O7 with x=0.4 and z=0.1,0.2 and 0.4 along with density functional theory calculations and x-ray scattering…
Anisotropic quasiparticle renormalization in Na0.73CoO2: role of inter-orbital interactions and magnetic correlations
J. Geck, S. V. Borisenko, H. Berger +8
We report an angular resolved photoemission study of Na0.73CoO2 where it is found that the renormalization of the quasiparticle (QP) dispersion changes dramatically upon a rotation…