TY  - JOUR
AU  - Stephens, P.
AU  - Friedt, O.
AU  - Marshall, W. G.
AU  - Schmidt, W.
AU  - Nakamura, F.
AU  - Nakatsuji, S.
AU  - Maeno, Y.
AU  - Lengssdorf, R.
AU  - Abd-Elmeguid, M. M.
AU  - Braden, M.
TI  - High-pressure diffraction studies on Ca2RuO4
JO  - Physical review / B
VL  - 72
IS  - 9
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-51542
SP  - 094104
PY  - 2005
N1  - Record converted from VDB: 12.11.2012
AB  - We studied the crystal and magnetic structure of Ca2RuO4 as function of pressure with different diffraction techniques. The first-order phase transition observed at a moderate pressure of P=0.5 GPa between the insulating and the metallic high-pressure phase is characterized by a broad region of phase coexistence. The following structural changes are observed as function of pressure: (a) A discontinuous change of both the tilt and rotational angle of the RuO6-octahedra at this transition, (b) a gradual decrease of the tilt angle in the high-pressure phase (P>0.5 GPa), and (c) the disappearance of the tilt above 5.5 GPa leading to a higher symmetry structure. The magnetism was studied by single-crystal neutron diffraction: The ferromagnetic component of the high-pressure phase and a rearrangement of antiferromagnetic order in the low-pressure phase have been observed.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000232228500033
DO  - DOI:10.1103/PhysRevB.72.094104
UR  - https://juser.fz-juelich.de/record/51542
ER  -