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Ferroelectric Domains in Hexagonal YMnO3
S Mori,T Katsufuji,Y Horibe 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.46 No.1
In order to clarify the microstructure related to the ferroelectric properties in multi-ferroic YMnO3, we carefully examined the ferroelectric-domain conguration by transmission electron microscopy (TEM). It was found that ferroelectric domains in YMnO3 consist of six anti-phase domains at room temperature. On warming from room temperature, the ferroelectric-domain con-guration changes into one consisting of three anti-phase domains around 738 K. In addition, the ferroelectric domains in YMnO3 change drastically into microdomains with a size of 10 20 nmby substitution of Ti ions for some of the Mn ones.
Chemical doping-induced flop of ferroelectric polarization in multiferroicMn0.9Co0.1WO4
Song, Y.-S.,Yan, Li Qin,Lee, Bumsung,Chun, Sae Hwan,Kim, Kee Hoon,Kim, Sung Baek,Nogami, A.,Katsufuji, T.,Schefer, J.,Chung, J.-H. American Physical Society 2010 Physical review. B, Condensed matter and materials Vol.82 No.21