TY  - JOUR
AU  - Eich, Andreas
AU  - Grzechnik, Andrzej
AU  - Paulmann, Carsten
AU  - Müller, Thomas
AU  - Su, Yixi
AU  - Wolf, Thomas
AU  - Friese, Karen
TI  - Comparison of the temperature- and pressure-dependent behavior of the crystal structure of CrAs
JO  - Acta crystallographica / B
VL  - 77
IS  - 4
SN  - 2052-5206
CY  - Oxford [u.a.]
PB  - Wiley-Blackwell
M1  - FZJ-2021-03126
SP  - 594-604
PY  - 2021
AB  - The crystal structure of CrAs was investigated using synchrotron X-ray single-crystal diffraction for separate dependences on temperature (30–400 K) and on pressure (0–9.46 GPa). The isosymmetrical magnetostructural phase transition at TN = 267 K can induce a change in the microstructure by twinning due to a crossing of the orthohexagonal setting of the unit-cell parameter ratio c/b. Within the crystal structure, one particular Cr–Cr distance exhibits anomalous behavior in that it is nearly unaffected by temperature and pressure in the paramagnetic phase, which is stable above 267 K and at high pressures. The distinction of this shortest Cr–Cr distance might be of importance for the superconducting properties of CrAs.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000683554100016
DO  - DOI:10.1107/S2052520621005655
UR  - https://juser.fz-juelich.de/record/894251
ER  -