TY - JOUR
T1 - Relation between ferroelectric and antiferromagnetic order in RMn2 O5
AU - Noda, Yukio
AU - Kimura, Hiroyuki
AU - Kamada, Youichi
AU - Osawa, Toshihiro
AU - Fukuda, Yosikazu
AU - Ishikawa, Yoshihisa
AU - Kobayashi, Satoru
AU - Wakabayashi, Yusuke
AU - Sawa, Hiroshi
AU - Ikeda, Naoshi
AU - Kohn, Kay
N1 - Funding Information:
This work was supported by Grant-In-Aid for Scientific Research (B), 16340096, from the Ministry of Education, Culture, Sports, Science and Technology, Japan. The work for neutron diffraction was performed under the PACS no. 3687, 4639 and 4706 of ISSP the University of Tokyo, and the SR-experiments were performed under the PACS no. 2004G039 at PF-KEK.
PY - 2006/11/27
Y1 - 2006/11/27
N2 - RMn2 O5 (R = Y and rare earth) shows successive magnetic and ferroelectric phase transitions at about 45, 40, 39, 20 and 10 K. We have reinvestigated the magnetic structure of YMn2 O5 at the commensurate phase (T = 25 K) using a single crystal four-circle diffractometer in order to discuss the mechanism of magnetoelectric interaction and the origin of ferroelectricity. We also observed the lattice modulation vectors (qL) to compare the magnetic propagation vectors (qM) by synchrotron X-ray diffraction. Improved magnetic structure data are compared with the theory recently proposed.
AB - RMn2 O5 (R = Y and rare earth) shows successive magnetic and ferroelectric phase transitions at about 45, 40, 39, 20 and 10 K. We have reinvestigated the magnetic structure of YMn2 O5 at the commensurate phase (T = 25 K) using a single crystal four-circle diffractometer in order to discuss the mechanism of magnetoelectric interaction and the origin of ferroelectricity. We also observed the lattice modulation vectors (qL) to compare the magnetic propagation vectors (qM) by synchrotron X-ray diffraction. Improved magnetic structure data are compared with the theory recently proposed.
KW - Magnetic structure
KW - Multi-ferroic compound RMn O
KW - Single crystal neutron diffraction
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U2 - 10.1016/j.physb.2006.05.179
DO - 10.1016/j.physb.2006.05.179
M3 - Article
AN - SCOPUS:33751437603
VL - 385-386 I
SP - 119
EP - 122
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
ER -