scholarly journals Crystalline Structure, Defect Chemistry and Room Temperature Colossal Permittivity of Nd-doped Barium Titanate

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Qiaomei Sun ◽  
Qilin Gu ◽  
Kongjun Zhu ◽  
Rongying Jin ◽  
Jinsong Liu ◽  
...  
Keyword(s):  
Barium Titanate ◽  
Crystalline Structure ◽  
Room Temperature ◽  
Defect Chemistry ◽  
Structure Defect ◽  
Colossal Permittivity ◽  
Doped Barium Titanate

scholarly journals Dielectric studies of cerium doped barium titanate at different frequencies

1970 ◽  
Vol 32 (1) ◽  
pp. 79-85
Author(s):  
SN Rahman ◽  
N Khatun ◽  
Md Tofazzal Hossain ◽  
AH Khan
Keyword(s):  
Barium Titanate ◽  
Room Temperature ◽  
Dielectric Constants ◽  
Relaxation Phenomena ◽  
Dielectric Studies ◽  
Frequency Range ◽  
Ceramic Method ◽  
Dipole Oscillator ◽  
Doped Barium Titanate ◽  
Academy Of Sciences

Cerium doped barium titanate is prepared by conventional ceramic method. The dielectric studies of Ba1-x Cex TiO3 have been accomplished at room temperature over a frequency range 75 KHz to 30 MHz for x = 0.1 to 0.4 with pure BaTiO3. The measurements of the real and imaginary part of dielectric constants show strong frequency dependence. The relaxation phenomena that take place cane be attributable to the damping of dipole oscillator due to the application of external field. In the present experiment relaxation occurs at the frequency of about - 1MHZ. doi: 10.3329/jbas.v32i1.2445 Journal of Bangladesh Academy of Sciences, Vol. 32, No. 1, 79-85, 2008

Defect controlled room temperature ferromagnetism in Co-doped barium titanate nanocrystals

2011 ◽  
Vol 23 (2) ◽  
pp. 025702 ◽  
Author(s):  
Sugata Ray ◽  
Yury V Kolen’ko ◽  
Kirill A Kovnir ◽  
Oleg I Lebedev ◽  
Stuart Turner ◽  
...  
Keyword(s):  
Barium Titanate ◽  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Doped Barium Titanate ◽  
Co Doped

Up-Conversion Luminescence in Thulium Doped Barium Titanate Inverted Opal

2007 ◽  
Vol 336-338 ◽  
pp. 561-563
Author(s):  
Jing Cao ◽  
Ji Zhou ◽  
Bo Li ◽  
Ming Fu ◽  
Rui Long Zong
Keyword(s):  
Barium Titanate ◽  
Room Temperature ◽  
Photonic Band Gap ◽  
Reference Sample ◽  
Laser Source ◽  
Luminescence Spectroscopy ◽  
Temperature Changes ◽  
Light Inhibition ◽  
Doped Barium Titanate ◽  
Photonic Band

The synthesis, infiltration into a polystyrene opal and luminescence spectroscopy of BaTiO3: Tm3+ were reported in this paper. A photonic band gap and blue up-conversion photoluminescence were achieved in the synthesized inverted opal, respectively demonstrated by reflection spectrum and emission spectrum excited by 650nm laser source at room temperature. Changes of the emission spectroscopy compared with the thulium doped barium titanate reference sample were observed and thus provided evidence for the light inhibition effect of the photonic structure.

scholarly journals Structural, Dielectric and Electrical Properties of Zirconium Doped Barium Titanate Perovskite

1970 ◽  
Vol 32 (2) ◽  
Author(s):  
Shamima Choudhury ◽  
Shurayya Akter ◽  
MJ Rahman ◽  
AH Bhuiyan ◽  
SN Rahman ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Barium Titanate ◽  
Loss Factor ◽  
Room Temperature ◽  
Sintering Temperature ◽  
Small Addition ◽  
Dielectric Study ◽  
Frequency Range ◽  
Doped Barium Titanate ◽  
Academy Of Sciences

The microstructural and electrical properties of pure and Zirconium (Zr) doped Barium titanate (BT) samples with general formula Ba(Ti1-xZrx)O3 (where x=0.0, 0.1, 0.2 and 0.3), prepared by high temperature solid state reaction at a sintering temperature of 1250° C, were investigated. Dielectric and structural properties of BT ceramics is influenced significantly by small addition of ZrO2. Scanning Electron Microscope (SEM) observations revealed enhanced microstructural uniformity and retarded grain growth with increasing Zr content. The dielectric study with frequency at room temperature in the frequency range 75 kHz to 30 MHz shows that dielectric constant decreases with increasing frequency. The resistivity of the samples shows asymptotic behavior with the variation of frequency and was found to be of the order of ~103 Ω-m. Loss factor of the grown materials decreased with increasing frequency but it became independent at higher frequency range. doi: 10.3329/jbas.v32i2.2434 Journal of Bangladesh Academy of Sciences Vol.32(2) 2008 151-159

Improved room temperature dielectric properties of Gd3+ and Nb5+ co-doped Barium Titanate ceramics

2021 ◽  
pp. 160836
Author(s):  
Khalid Mujasam Batoo ◽  
Ritesh Verma ◽  
Ankush Chauhan ◽  
Rajesh Kumar ◽  
Muhammad Hadi ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Barium Titanate ◽  
Room Temperature ◽  
Doped Barium Titanate ◽  
Titanate Ceramics ◽  
Co Doped

scholarly journals Effects of Ca substitution on room temperature resistivity of donor-doped barium titanate based PTCR ceramics

2014 ◽  
Vol 122 (1426) ◽  
pp. 402-405 ◽  
Author(s):  
Kohei MATSUURA ◽  
Takuya HOSHINA ◽  
Hiroaki TAKEDA ◽  
Yukio SAKABE ◽  
Takaaki TSURUMI
Keyword(s):  
Barium Titanate ◽  
Room Temperature ◽  
Room Temperature Resistivity ◽  
Ca Substitution ◽  
Doped Barium Titanate ◽  
Temperature Resistivity

Luminescence of Pr-Doped Barium Titanate-Calcium Titanate Material

2010 ◽  
Vol 411 (1) ◽  
pp. 52-57 ◽  
Author(s):  
Xiaoyan Wang ◽  
Yanxue Tang ◽  
Xiyun He ◽  
Xia Zeng ◽  
Qizhuang He ◽  
...  
Keyword(s):  
Barium Titanate ◽  
Calcium Titanate ◽  
Doped Barium Titanate
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