218 citations · 599 across the 12 of their papers we have counts for
13 papers
Evidence for temporary and local transition of sp2 graphite-type to sp3 diamond-type bonding induced by the tip of an atomic force microscope
Thomas Hofmann, Xinguo Ren, Alfred J. Weymouth +4
Artificial diamond is created by exposing graphite to pressures on the order of 10\,GPa and temperatures of about 2000\,K. Here, we provide evidence that the pressure exerted by th…
Ionic liquid dynamics in nanoporous carbon: A pore-size- and temperature-dependent neutron spectroscopy study on supercapacitor materials
Mark Busch, Tommy Hofmann, Bernhard Frick +3
The influence of spatial confinement on the thermally excited stochastic cation dynamics of the room-temperature ionic liquid 1-N-butylpyridinium bis-((trifluoromethyl)sulfonyl)imi…
Characterization of the soft X-ray spectrometer PEAXIS at BESSY II
Christian Schulz, Klaus Lieutenant, Jie Xiao +3
The performance of the recently commissioned spectrometer PEAXIS for resonant inelastic soft X-ray scattering (RIXS) and X-ray photoelectron spectroscopy (XPS) and its hosting beam…
Quantized Self-Assembly of Discotic Rings in a Liquid Crystal Confined in Nanopores
Kathrin Sentker, Arne W. Zantop, Milena Lippmann +7
Disklike molecules with aromatic cores spontaneously stack up in linear columns with high, one-dimensional charge carrier mobilities along the columnar axes making them prominent m…
Controlling a d-level atom in a cavity
Thomas Hofmann, Michael Keyl
In this paper we study controllability of a -level atom interacting with the electromagnetic field in a cavity. The system is modelled by an ordered graph . The vertices of $…
A ferroelectric liquid crystal confined in cylindrical nanopores: Reversible smectic layer buckling, enhanced light rotation and extremely fast electro-optically active Goldstone excitations
Mark Busch, Andriy V. Kityk, Wiktor Piecek +7
The orientational and translational order of a thermotropic ferroelectric liquid crystal (2MBOCBC) imbibed in self-organized, parallel, cylindrical pores with radii of 10, 15, or 2…