Sol-gel preparation of La-doped bismuth ferrite thin film and its low-temperature ferromagnetic and ferroelectric properties

2013 ◽  
Vol 31 (1) ◽  
pp. 60-64 ◽  
Author(s):  
Fuxue YAN ◽  
Gaoyang ZHAO ◽  
Na SONG
1996 ◽  
Vol 446 ◽  
Author(s):  
YongSoo Choi ◽  
SooDoo Choe ◽  
SeungHyun Kim ◽  
ChangEun Kim ◽  
DooYoung Yang

AbstractA new sol‐gel route to obtain PLZT thin film was developed by combining the advantage of 2‐methoxyethanol as a solvent and acetylacetone as a chelating agent. The sol maintained the same stable state as that of fresh synthesized sol even after 60 days of aging. The PLZT films spin coated onto a Pt/Ti/SiO2 substrate with 15% Pb excess and 7.5% La added sol showed well developed rosette microstructure of uniform grain sizes(0.3 ‐ 0.5 μm) and gave well behaved ferroelectric properties with the values of Ps, Pr, and Ec of 40 μC/cm2, 15 μ C/cm2, and 20 kV/cm respectively at 5V after 650 °C and above annealing. The degradation in polarization of 2.5% La doped PLZT thin film was found to be less than 20% up to 1012 cycles


ACS Omega ◽  
2017 ◽  
Vol 2 (10) ◽  
pp. 6968-6974 ◽  
Author(s):  
Clemente G. Alvarado-Beltrán ◽  
Jorge L. Almaral-Sánchez ◽  
Israel Mejia ◽  
Manuel A. Quevedo-López ◽  
Rafael Ramirez-Bon

2002 ◽  
Vol 92 (9) ◽  
pp. 5420-5424 ◽  
Author(s):  
J. S. Zhu ◽  
D. Su ◽  
X. M. Lu ◽  
H. X. Qin ◽  
Y. N. Wang ◽  
...  

2002 ◽  
Vol 189 (3-4) ◽  
pp. 300-306 ◽  
Author(s):  
Kazunori Takada ◽  
Kenjiro Fujimoto ◽  
Taro Inada ◽  
Akihisa Kajiyama ◽  
Masaru Kouguchi ◽  
...  
Keyword(s):  
Sol Gel ◽  
Li Ion ◽  

2010 ◽  
Vol 10 (1) ◽  
pp. 45-50 ◽  
Author(s):  
K. K. Banger ◽  
Y. Yamashita ◽  
K. Mori ◽  
R. L. Peterson ◽  
T. Leedham ◽  
...  

2011 ◽  
Vol 687 ◽  
pp. 391-395
Author(s):  
Shu Xia Zhang ◽  
Yan Wei Ma

Rare-earth ion La is doped at the bismuth site in BiFeO3 to produce Bi0.8La0.2FeO3 polycrystalline ceramics via a sol-gel auto-combustion synthesis method. For comparison, the similar experiments are also carried out for the non-doped BiFeO3 at the same time. It is found that both non-doped and La doped BiFeO3 are composed of nanoscale crystallites (~50 nm). Furthermore, La doping suppresses the formation of the secondary phase and leads to a structural phase transition from a rhombohedral to an orthorhombic or a pseudotetragonal structure. More importantly, the magnetic and ferroelectric properties in La doped ceramics were both enhanced, as evidenced by the typical electric and magnetic hysteresis loops. These property evolutions can be attributed to the elimination of the secondary phase and the structural distortion caused by La doping.


2012 ◽  
Vol 24 (1) ◽  
pp. 423-430 ◽  
Author(s):  
Chi-Chang Wu ◽  
Yi-Jen Tsai ◽  
Pin-Lin Liu ◽  
Wen-Luh Yang ◽  
Fu-Hsiang Ko

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