TY - JOUR
T1 - Crystal structure and magnetic properties of hexagonal (formula presented) Lu, and Sc) and the effect of doping
AU - Katsufuji, T.
AU - Masaki, M.
AU - Machida, A.
AU - Moritomo, M.
AU - Kato, K.
AU - Nishibori, E.
AU - Takata, M.
AU - Sakata, M.
AU - Ohoyama, K.
AU - Kitazawa, K.
AU - Takagi, H.
PY - 2002/1/1
Y1 - 2002/1/1
N2 - A ferroelectricity-magnetism-coexisting system, hexagonal (formula presented) Lu, and Sc), has been investigated by synchrotron x-ray and neutron powder diffraction measurements. It is found from x-ray diffraction measurements that the ferroelectric polarization originates from the tilting of (formula presented) polyhedra and the buckling of R layers, which persists up to 1000 K. Neutron diffraction measurements have revealed the reduction of ordered moments from the expected value, as well as strong magnetic diffuse scattering existing far above (formula presented) both of which are caused by geometrical frustration of the triangular lattice of Mn ions. We have also investigated the effects of Zr doping into the R site and have found that Zr doping drastically suppresses both ferroelectric distortion and magnetic ordering.
AB - A ferroelectricity-magnetism-coexisting system, hexagonal (formula presented) Lu, and Sc), has been investigated by synchrotron x-ray and neutron powder diffraction measurements. It is found from x-ray diffraction measurements that the ferroelectric polarization originates from the tilting of (formula presented) polyhedra and the buckling of R layers, which persists up to 1000 K. Neutron diffraction measurements have revealed the reduction of ordered moments from the expected value, as well as strong magnetic diffuse scattering existing far above (formula presented) both of which are caused by geometrical frustration of the triangular lattice of Mn ions. We have also investigated the effects of Zr doping into the R site and have found that Zr doping drastically suppresses both ferroelectric distortion and magnetic ordering.
UR - http://www.scopus.com/inward/record.url?scp=84861180137&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84861180137&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.66.134434
DO - 10.1103/PhysRevB.66.134434
M3 - Article
AN - SCOPUS:84861180137
SN - 1098-0121
VL - 66
SP - 1
EP - 8
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 13
ER -