Conveners
Structure Property Relations
- Guntram Jordan
We studied the elasticity of metal-guanidinium formates (metal=Cu, Zn, Mn, Co, Ca, Cd) with experimental and theoretical techniques, among those resonant ultrasound spectroscopy, Brillouin spectroscopy and density functional theory. We found a good agreement between the different techniques and the theoretical data. Our results show a systematic variation of the bulk modulus as a function of...
In this work we show the crystallization of a new low-dimensional spin compound Cs3Cu3Cl7.6Br0.4OH with weakly coupled Cu-triangles. In addition, the x-ray diffraction of this new compound results in a monocline structure with space group P21/c, which is isostructural to Cs3Cu3Cl8OH. The differences of distances and angles due to Br doping are very small, but, nevertheless, those are important...
GeV ion irradiation and high static pressures are combined in order to investigate ion-induced structural changes on pressure-induced phase transitions in nano-materials. We introduce the synthesis of bismuth nanowires and discuss beam-induced morphological and structural changes. Moreover, the technical capabilities of the GSI ion accelerator and a novel experimental setup developed for the...
A recent research direction related to ABX$_3$ perovskites is the use of molecules on the A and/or X-site, a development that has proved fruitful for photovoltaics, (improper) ferroelectrics and barocalorics. Here an information theory-based rating scheme is applied to obtain structural complexities of various perovskite classes and it is shown that increased chemical diversity is synonymous...
