La-doped effect on the ferroelectric properties of Bi4Ti3O12–SrBi4Ti4O15 thin film fabricated by pulsed laser deposition

2002 ◽  
Vol 92 (9) ◽  
pp. 5420-5424 ◽  
Author(s):  
J. S. Zhu ◽  
D. Su ◽  
X. M. Lu ◽  
H. X. Qin ◽  
Y. N. Wang ◽  
...  
2014 ◽  
Vol 116 (12) ◽  
pp. 124105 ◽  
Author(s):  
Daniel J. R. Appleby ◽  
Nikhil K. Ponon ◽  
Kelvin S. K. Kwa ◽  
Srinivas Ganti ◽  
Ullrich Hannemann ◽  
...  

2011 ◽  
Vol 01 (01) ◽  
pp. 57-61 ◽  
Author(s):  
M. M. HEJAZI ◽  
A. SAFARI

We have developed a uniform and dense epitaxial thin film of 0.94( Bi 0.5 Na 0.5) TiO 3 - 0.004 × ( Bi 0.5 K 0.5) TiO 3 - 0.02 BaTiO 3 on a SrRuO 3 coated SrTiO 3 substrate by pulsed laser deposition method. The remnant polarization, coercive field and dielectric constant of the film with thickness of 315 nm, were measured to be 16.6 μC ⋅ cm−2, 147.5 kV ⋅ cm-1 and 640 (at 1 kHz), respectively. The film exhibited a high breakdown voltage and low leakage current of 1.1 × 10-5 A ⋅ cm-2 at 310 kV ⋅ cm-1. This ( Bi 0.5 Na 0.5) TiO 3-based thin film with a target composition in the rhombohedral side of the morphotropic phase boundary can be considered a potential candidate for relatively high power applications.


2007 ◽  
Vol 1034 ◽  
Author(s):  
Seiji Nakashima ◽  
Yoshitaka Nakamura ◽  
Masanori Okuyama

AbstractBi-layer-structured mutiferroic Bi5Ti3FeO15 (BTFO15) (m = 4) and natural-superlattice-structured Bi4Ti3O12- Bi5Ti3FeO15 (BIT-BTFO15) (m = 3-4) thin films have been prepared on (001) and (110) oriented SrTiO3 (STO) single crystal substrates by using pulsed laser deposition. X-ray diffraction patterns of these thin films on (00l) STO single crystals shows the obtained thin films were (00l)-oriented layer-perovskite single phase, and BIT-BTFO15 (m = 3-4) natural-superlattice-structure has also obtained. On (110) STO single crystal, layer perovskite (11l) oriented thin films have been also obtained. For characterizing ferroelectric properties, these thin films have been prepared on (001) and (110) oriented La-doped (3.73 wt%) STO single crystal substrates. From ferroelectric D-E hysteresis loops measurements, BTFO15 (m = 4) and BIT-BTFO (m = 3-4) thin films on (110) La-doped STO single crystals shows good ferroelectric hysteresis loops and their double remanent polarizations (2Pr) were 47 μC/cm2 and 44 μC/cm2, respectively. However, these thin films on (001) La-doped STO single crystals do not show ferroelectric characteristics.


2000 ◽  
Vol 76 (18) ◽  
pp. 2490-2492 ◽  
Author(s):  
P. A. Atanasov ◽  
R. I. Tomov ◽  
J. Perriére ◽  
R. W. Eason ◽  
N. Vainos ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document