Crystal structure and ferroelectric properties of rare-earth substituted BiFeO3 thin films

2006 ◽  
Vol 100 (1) ◽  
pp. 014106 ◽  
Author(s):  
Hiroshi Uchida ◽  
Risako Ueno ◽  
Hiroshi Funakubo ◽  
Seiichiro Koda
2004 ◽  
Vol 830 ◽  
Author(s):  
Hiroshi Nakaki ◽  
Hiroshi Uchida ◽  
Shoji Okamoto ◽  
Shintaro Yokoyama ◽  
Hiroshi Funakubo ◽  
...  

ABSTRACTRare-earth-substituted tetragonal lead zirconate titanate thin films were synthesized for improving the ferroelectric property of conventional lead zirconate titanate. Thin films of Pb1.00REx (Zr0.40Ti0.60)1-(3x /4)O3 (x = 0.02, RE = Y, Dy, Er and Yb) were deposited on (111)Pt/Ti/SiO2/(100)Si substrates by a chemical solution deposition (CSD). B-site substitution using rare-earth cations described above enhanced the crystal anisotropy, i.e., ratio of PZT lattice parameters c/a. Remanent polarization (Pr) of PZT film was enhanced by Y3+-, Dy3+- and Er3+-substitution from 20 μC/cm2 up to 26, 25 and 26 μC/cm2 respectively, while ion substitution using Yb3+ degraded the Pr value down to 16 μC/cm2. These films had similar coercive fields (Ec) of around 100 kV/cm. Improving the ferroelectric property of PZT film by rare-earth-substitution would be ascribed to the enhancement of the crystal anisotropy. We concluded that ion substitution using some rare-earth cations, such as Y3+, Dy3+ or Er3+, is one of promising technique for improving the ferroelectric property of PZT film.


2010 ◽  
Vol 57 (6(1)) ◽  
pp. 1875-1878 ◽  
Author(s):  
Sang Su KIm ◽  
Dalhyun Do ◽  
JIn Won Kim ◽  
Won-Jeong Kim ◽  
Myang Hwan Lee ◽  
...  

2007 ◽  
Vol 94 (1) ◽  
pp. 23-30 ◽  
Author(s):  
ZHENG CHAODAN ◽  
ZHANG DUANMING ◽  
YU JUN ◽  
YANG BIN ◽  
WU YUNYI ◽  
...  

2015 ◽  
Vol 355 ◽  
pp. 1007-1012 ◽  
Author(s):  
Chinnambedu Murugesan Raghavan ◽  
Jin Won Kim ◽  
Tae Kwon Song ◽  
Sang Su Kim

2012 ◽  
Vol 22 (9) ◽  
pp. 2153-2157
Author(s):  
Chuan-pin CHENG ◽  
Bo JIANG ◽  
Ming-hua TANG ◽  
Song-bo YANG ◽  
Yong-guang XIAO ◽  
...  

2018 ◽  
Vol 746 ◽  
pp. 677-687 ◽  
Author(s):  
Zhengjun Chai ◽  
Guoqiang Tan ◽  
Zhongwei Yue ◽  
Wei Yang ◽  
Meiyou Guo ◽  
...  

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