%0 Journal Article
%A Stephens, P.
%A Friedt, O.
%A Marshall, W. G.
%A Schmidt, W.
%A Nakamura, F.
%A Nakatsuji, S.
%A Maeno, Y.
%A Lengssdorf, R.
%A Abd-Elmeguid, M. M.
%A Braden, M.
%T High-pressure diffraction studies on Ca2RuO4
%J Physical review / B
%V 72
%N 9
%@ 1098-0121
%C College Park, Md.
%I APS
%M PreJuSER-51542
%P 094104
%D 2005
%Z Record converted from VDB: 12.11.2012
%X 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.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000232228500033
%R 10.1103/PhysRevB.72.094104
%U https://juser.fz-juelich.de/record/51542