Fabrication of Bi2Sr2Can-1CunOy / Al2O3-Particles on MgO Films by rf Magnetron Sputtering Method

2006 ◽  
Vol 47 ◽  
pp. 159-164
Author(s):  
T. Yamane ◽  
Satoru Kishida ◽  
H. Tanaka ◽  
Hideki Yoshikawa ◽  
Hiroya Imao
Keyword(s):  
Thin Films ◽  
Particle Size ◽  
Magnetron Sputtering ◽  
Single Phase ◽  
Distribution Density ◽  
Annealing Temperature ◽  
Rf Magnetron Sputtering ◽  
Superconducting Thin Films ◽  
Substrate Distance ◽  
Zero Resistance

We deposited Bi2Sr2Ca1Cu2Oy (Bi-2212) superconducting thin films on MgO substrates with or without Al2O3 particles by the rf magnetron sputtering method. From the results, we found that optimum target-substrate distance, rf powers and substrate temperature for obtaining the Bi-2212 films on the MgO substrates were 5mm, 150W and 830°C, respectively. The Bi-2212 films were Bi-2212 single-phase and had the Tc of about 54K . The particle size and the distribution density of Al2O3 were controlled by annealing temperature. The Bi-2212/Al2O3/MgO film showed Bi-2212 single-phase, whereas did not show zero-resistance.

Ferroelectric Properties and Microstructures of Tb4O7-Doped Bi4Ti3O12 Thin Films

2010 ◽  
Vol 105-106 ◽  
pp. 259-262 ◽  
Author(s):  
X.A. Mei ◽  
Min Chen ◽  
A.H. Cai ◽  
K.L. Su ◽  
Chong Qing Huang ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
Layered Structure ◽  
Remanent Polarization ◽  
Single Phase ◽  
Bismuth Titanate ◽  
Ferroelectric Properties ◽  
Rf Magnetron Sputtering ◽  
Si Substrates ◽  
Remarkable Improvement

Tb4O7-doped bismuth titanate (BixTbyTi3O12 BTT) thin films were fabricated on Pt/Ti/SiO2/Si substrates by rf magnetron sputtering technique, and the microstructures and ferroelectric properties of the films were investigated. Microstructure studies indicate that all of BTT films with well-developed rod-like grains consist of single phase of a bismuth-layered structure without preferred orientation. The experimental results indicate that Tb doping into Bi4Ti3O12 results in a remarkable improvement in ferroelectric properties. The remanent polarization (Pr) and coercive field (Ec) of the BTT film with y=0.6 were 22 μC/cm2 and 85 kV/cm, respectively.

SPUTTERING DEPOSITION OF Tl–Ca–Ba–Cu–O THIN FILMS WITH ZERO RESISTANCE AT 101 K

1989 ◽  
Vol 03 (13) ◽  
pp. 1013-1016 ◽  
Author(s):  
S. L. YAN ◽  
X. J. HU ◽  
Q. X. SONG ◽  
H. L. CAO ◽  
J. YAN ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
Surface Structure ◽  
Single Phase ◽  
Xrd Analysis ◽  
Dc Magnetron Sputtering ◽  
Ceramic Substrates ◽  
Sputtering Deposition ◽  
Post Annealing ◽  
Zero Resistance

Superconducting Tl–Ca–Ba–Cu–O thin films have been prepared by dc magnetron sputtering from a pair of Tl 2 Ca 1 Ba 3 Cu 4 O y bulk targets. The post-annealing films on ZrO 2 ceramic substrates exhibit an onset temperature of about 125 K and zero resistance as high as 101 K. SEM showed a smooth terraced surface structure. The XRD analysis proved that the films were polycrystalline and were not single phase superconducting material.

scholarly journals Preparation of Bi-based Superconducting Thin Films by RF Magnetron Sputtering under Magnetic Field

Shinku ◽  
2004 ◽  
Vol 47 (3) ◽  
pp. 194-196
Author(s):  
Naoki FUJIWARA ◽  
Takahiro ONISHI ◽  
Kouji KATSURAHARA ◽  
Satoru KISHIDA
Keyword(s):  
Magnetic Field ◽  
Thin Films ◽  
Magnetron Sputtering ◽  
Rf Magnetron Sputtering ◽  
Superconducting Thin Films

Effect of annealing temperature on properties of MgxZn1−xO thin films deposited by RF magnetron sputtering

2005 ◽  
Vol 357 (3-4) ◽  
pp. 428-432 ◽  
Author(s):  
Xijian Zhang ◽  
Honglei Ma ◽  
Jin Ma ◽  
Fujian Zong ◽  
Hongdi Xiao ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
Annealing Temperature ◽  
Rf Magnetron Sputtering
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