TY - JOUR
T1 - Charge and orbital order patterns in an a-site ordered perovskite-type manganite SmBaMn 2O 6 determined by convergent-beam electron diffraction
AU - Morikawa, Daisuke
AU - Tsuda, Kenji
AU - Maeda, Youichi
AU - Yamada, Shigeki
AU - Arima, Taka Hisa
N1 - Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012/9
Y1 - 2012/9
N2 - Charge and orbital ordered (COO) phases of an A-site ordered perovskite-type manganite SmBaMn 2O 6 have been investigated using convergent-beam electron diffraction. The space groups of the room-temperature and low-temperature COO phases are revealed to be Pnam and P2 1am, respectively. Based on the space groups, the COO patterns are unambiguously determined. The noncentrosymmetric space group of the low-temperature phase emerging with the re-arrangement of charge and orbitals are revealed.
AB - Charge and orbital ordered (COO) phases of an A-site ordered perovskite-type manganite SmBaMn 2O 6 have been investigated using convergent-beam electron diffraction. The space groups of the room-temperature and low-temperature COO phases are revealed to be Pnam and P2 1am, respectively. Based on the space groups, the COO patterns are unambiguously determined. The noncentrosymmetric space group of the low-temperature phase emerging with the re-arrangement of charge and orbitals are revealed.
KW - A-site ordered perovskite
KW - Charge and orbital order
KW - Convergent-beam electron diffraction (CBED)
KW - Electronic ferroelectricity
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U2 - 10.1143/JPSJ.81.093602
DO - 10.1143/JPSJ.81.093602
M3 - Article
AN - SCOPUS:84866415703
VL - 81
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 9
M1 - 093602
ER -