319 citations · 2.1k across the 65 of their papers we have counts for
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Effect of lattice excitations on transient near edge X-ray absorption spectroscopy
N. Rothenbach, M. E. Gruner, K. Ollefs +17
Time-dependent and constituent-specific spectral changes in soft near edge X-ray spectroscopy (XAS) of an [Fe/MgO] metal/insulator heterostructure upon laser excitation are ana…
Interface-related magnetic and vibrational properties in Fe/MgO heterostructures from nuclear resonant spectroscopy and first-principles calculations
Benedikt Eggert, Markus E. Gruner, Katharina Ollefs +11
We combine Fe Mössbauer spectroscopy and Fe nuclear resonant inelastic x-ray scattering (NRIXS) in nanoscale polycrystalline [bcc-Fe/MgO] multilayers with vari…
Chern and topological insulating phases in perovskite-derived and oxide buckled honeycomb lattices
Okan Köksal, Rossitza Pentcheva
Based on density functional theory calculations including a Coulomb repulsion parameter , we explore the topological properties of (LaO)/(LaAlO)(111) with $X=…
Role of the exchange-correlation functional on the structural, electronic and optical properties of cubic and tetragonal SrTiO including many-body effects
Vijaya Begum, Markus Ernst Gruner, Rossitza Pentcheva
SrTiO is a model perovskite compound with unique properties and technological relevance. At 105 K it undergoes a transition from a cubic to a tetragonal phase with characterist…
Electronic structure of a graphene-like artificial crystal of
Arian Arab, Xiaoran Liu, O. Köksal +14
Artificial complex-oxide heterostructures containing ultrathin buried layers grown along the pseudocubic [111] direction have been predicted to host a plethora of exotic quantum st…
Microscopic non-equilibrium energy transfer dynamics in a photoexcited metal/insulator heterostructure
N. Rothenbach, M. E. Gruner, K. Ollefs +15
The element specificity of soft X-ray spectroscopy makes it an ideal tool for analyzing the microscopic origin of ultrafast dynamics induced by localized optical excitation in meta…