49 citations · 136 across the 9 of their papers we have counts for
9 papers
Nearest-neighbor Kitaev exchange blocked by charge order in electron doped -RuCl
A. Koitzsch, C. Habenicht, E. Mueller +9
A quantum spin-liquid might be realized in -RuCl, a honeycomb-lattice magnetic material with substantial spin-orbit coupling. Moreover, -RuCl is a Mott insulator,…
Direct Observation of the Lowest Indirect Exciton State in the Bulk of Hexagonal Boron Nitride
R. Schuster, C. Habenicht, M. Ahmad +2
We combine electron energy-loss spectroscopy and first-principles calculations based on density-functional theory (DFT) to identify the lowest indirect exciton state in the in-plan…
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…
Evidence for phase formation in potassium intercalated 1,2;8,9-dibenzopentacene
Friedrich Roth, Andreas König, Benjamin Mahns +2
We have prepared potassium intercalated 1,2;8,9-dibenzopentacene films under vacuum conditions. The evolution of the electronic excitation spectra upon potassium addition as measur…
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…
Signatures of electronic polarons in LaSrMnO observed by electron energy-loss spectroscopy
R. Kraus, M. Schrade, R. Schuster +4
The dielectric properties of LaSrMnO single crystals with x = 0, 0.125, 0.25, and 0.5 were studied by means of electron energy-loss spectroscopy as a function o…
Investigation of the In-Gap Electronic Structure of LaAlO3 - SrTiO3 Heterointerfaces by Soft X-ray Spectroscopy
A. Koitzsch, J. Ocker, M. Knupfer +4
We investigated \LAO\ - \STO\ heterointerfaces grown either in oxygen rich or poor atmosphere by soft x-ray spectroscopy. Resonant photoemission across the Ti L absorption…
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…
Electron-electron correlation in graphite
A. Gruneis, C. Attaccalite, T. Pichler +12
The full three dimensional dispersion of the pi-bands, Fermi velocities and effective masses are measured with angle resolved photoemission spectroscopy and compared to first-princ…