Microstructure of eutectic composites Ln 1−x Ln′ x MnO3 (Ln = Eu or Tb; Ln′ = Y or Ho) near the transition between the orthorhombic structure and hexagonal structures
作者： L. D. Iskhakova , V. Yu. Ivanov , A. A. Mukhin , A. M. Balbashov , S. V. Lavrishchev
DOI: 10.1134/S1063774512030108
关键词: Composite material 、 Materials science 、 Electron backscatter diffraction 、 Lamellar structure 、 Crystal 、 Eutectic system 、 Hexagonal phase 、 Crystallography 、 Orthorhombic crystal system 、 Microstructure 、 Crystal structure
摘要: Multiferroic crystals Ln1 − x MnO3 (Ln = Eu or Tb; Ln′ Y Ho) have been grown by floating-zone melting; the compositions of these are close to point concentration transition from orthorhombic structure hexagonal phase. Scanning microscopy has revealed that crystal boules a regular lamellar in form alternating layers and phases; this is typical materials obtained directional solidification eutectic composites. The local chemical phase unit-cell parameters phases determined. microstructure morphology structures described for different growth conditions. mutual orientation crystallographic axes neighboring determined electron backscatter diffraction. orientational features considered view both phases.
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M. Tokunaga, Y. Yamasaki, Y. Onose, M. Mochizuki, N. Furukawa, Y. Tokura, Novel Multiferroic State ofEu1−xYxMnO3in High Magnetic Fields Physical Review Letters. ,vol. 103, pp. 187202- 187202 ,(2009) , 10.1103/PHYSREVLETT.103.187202
F. Schrettle, A. M. Balbashov, P. Lunkenheimer, A. Loidl, J. Hemberger, A. A. Mukhin, A. Pimenov, V. Yu. Ivanov, Multiferroic phases of Eu 1-x Y x MnO 3 Physical Review B. ,vol. 75, pp. 035118- ,(2007) , 10.1103/PHYSREVB.75.035118
Y. Yamasaki, S. Miyasaka, T. Goto, H. Sagayama, T. Arima, Y. Tokura, Ferroelectric phase transitions of 3 d -spin origin in Eu 1 − x Y x Mn O 3 Physical Review B. ,vol. 76, pp. 184418- ,(2007) , 10.1103/PHYSREVB.76.184418
Bas B Van Aken, Auke Meetsma, Thomas TM Palstra, None, Hexagonal YMnO(3). Acta Crystallographica Section C-crystal Structure Communications. ,vol. 57, pp. 230- ,(2001) , 10.1107/S0108270100015663
A.M. Balbashov, S.K. Egorov, Apparatus for growth of single crystals of oxide compounds by floating zone melting with radiation heating Journal of Crystal Growth. ,vol. 52, pp. 498- 504 ,(1981) , 10.1016/0022-0248(81)90328-6
Léo Mazerolles, Daniel Michel, Martin J. Hÿtch, Microstructures and interfaces in directionally solidified oxide–oxide eutectics Journal of The European Ceramic Society. ,vol. 25, pp. 1389- 1395 ,(2005) , 10.1016/J.JEURCERAMSOC.2005.01.015
V. Yu. Ivanov, A. A. Mukhin, A. S. Prokhorov, A. M. Balbashov, L. D. Iskhakova, Magnetic and dielectric properties of orthorhombic and hexagonal multiferroics Tb 1 − x Y x MnO 3 Jetp Letters. ,vol. 91, pp. 392- 397 ,(2010) , 10.1134/S0021364010080060
M. Moritomo, K. Kato, E. Nishibori, M. Takata, M. Sakata, K. Ohoyama, K. Kitazawa, H. Takagi, T. Katsufuji, M. Masaki, A. Machida, Crystal structure and magnetic properties of hexagonal RMnO3 (R = Y, Lu, and Sc) and the effect of doping Physical Review B. ,vol. 66, pp. 1344341- 1344348 ,(2002) , 10.1103/PHYSREVB.66.134434
Takanori Mori, Naoki Kamegashira, Katsuyuki Aoki, Toetsu Shishido, Tsuguo Fukuda, Crystal growth and crystal structures of the LnMnO3 perovskites: Ln=Nd, Sm, Eu and Gd Materials Letters. ,vol. 54, pp. 238- 243 ,(2002) , 10.1016/S0167-577X(01)00569-9
V. Yu. Ivanov, A. A. Mukhin, A. S. Prokhorov, A. M. Balbashov, L. D. Iskhakova, Magnetic Properties and Phase Transitions in Hexagonal DyMnO 3 Single Crystals Physics of the Solid State. ,vol. 48, pp. 1726- 1729 ,(2006) , 10.1134/S1063783406090186