scholarly journals The Dependence on Deposition Conditions related to High Tc of Deposited YBCO Thin Films by Oxygen ion assisted Deposition.

Shinku ◽  
1993 ◽  
Vol 36 (3) ◽  
pp. 226-229
Author(s):  
Masao NOMA ◽  
Masami NAKASONE ◽  
Souichi OGAWA ◽  
Tsutom Yotsuya ◽  
Yoshihiko SUZUKI
Keyword(s):  
Thin Films ◽  
High Tc ◽  
Oxygen Ion ◽  
Ybco Thin Films ◽  
Deposition Conditions

STUDY OF THE PREPARATION OF HIGH Tc SUPERCONDUCTING YBCO THIN FILMS BY A PLASMA-ASSISTED MOCVD PROCESS

1989 ◽  
Vol 50 (C5) ◽  
pp. C5-149-C5-153
Author(s):  
DING-KUN PENG ◽  
GUANG-YAO MENG ◽  
CHUN-BAO CAO ◽  
CHUN-LIN WANG ◽  
QI FANG ◽  
...  
Keyword(s):  
Thin Films ◽  
High Tc ◽  
Ybco Thin Films

Electrodeposition of High-Tc Superconductor Material for Microsensor Fabrication

1996 ◽  
Vol 451 ◽  
Author(s):  
A. Natarajan ◽  
W. Wang ◽  
E. Ma ◽  
R. N. Bhattacharya ◽  
C. Khan-Malek ◽  
...  
Keyword(s):  
Thin Films ◽  
Reference Electrode ◽  
Ybco Superconductor ◽  
X Rays ◽  
High Tc ◽  
High Tc Superconductor ◽  
Weak Magnetic Fields ◽  
Micro Sensor ◽  
Superconductor Material ◽  
Deposition Conditions

ABSTRACTThin-films of YBa2Cu3O7 (YBCO) superconductor precursor were synthesized using an electrodeposition process. The YBCO precursor thin films were deposited on Ag foils using pulsed potential deposition conditions of 10 s at - 4 V and 10 s at -1 V (versus Ag reference electrode). The post-annealed films showed zero electrical resistance at 60 K. The procedures for the fabrication of a high precision micro-sensor using YBCO superconductor for measurement of weak magnetic fields are outlined. The micro-sensor templates were patterned using X-rays and precursor films were deposited into the features.

Scanning probe microscopy study of the growth of YBa2Cu3O7 thin films

1995 ◽  
Vol 53 ◽  
pp. 380-381
Author(s):  
M. Grant Norton ◽  
Rand R. Biggers ◽  
E.K. Moser ◽  
T.L. Peterson ◽  
I. Maartense
Keyword(s):  
Thin Films ◽  
Scanning Probe Microscopy ◽  
Substrate Surface ◽  
Microscopy Study ◽  
Scanning Probe ◽  
Probe Microscopy ◽  
Ybco Thin Films ◽  
Nucleation Sites ◽  
Step Flow Growth ◽  
Deposition Conditions

Previous work in our laboratory has demonstrated the use of scanning probe microscopy (SPM) techniques in the study of microstructure development in YBa2Cu3O7 (YBCO) thin films formed by pulsed-laser deposition (PLD) [e.g., Ref. 1]. Under certain deposition conditions a high density of surface outgrowths was observed. These outgrowths have been identified as a-axis-oriented YBCO grains nucleated at the substrate surface which grow in concert with the c-axis-oriented YBCO grains. This growth mechanism differs from that previously suggested for the formation of mixed a-axis-oriented/c-axis-oriented YBCO films. The microstructure of YBCO thin films deposited on vicinal substrates by PLD is very different from that observed for films grown on oriented substrates (even under equivalent deposition conditions). Films grown on vicinal LaA1O3 substrates consisted of elongated granular features oriented along common directions. The shape of these features is the result of step-flow growth where the ledges on the miscut substrates provide aligned and enhanced nucleation sites. Such features have been observed on films grown using several different deposition conditions: only the width of the features changed.

HIGH Tc SUPERCONDUCTING THIN FILMS BY CHEMICAL SPRAY DEPOSITION

1987 ◽  
Vol 01 (02) ◽  
pp. 579-582
Author(s):  
Guang-yao Meng ◽  
Xian-dong Wang ◽  
Xue-jun Chen ◽  
Pei-zhen Fu ◽  
Pinghua Yang ◽  
...  
Keyword(s):  
Thin Films ◽  
Spray Deposition ◽  
Nitrate Solution ◽  
Deposition Process ◽  
Superconducting Thin Films ◽  
High Tc ◽  
Chemical Spray ◽  
Zero Resistance ◽  
Super Conducting ◽  
Deposition Conditions

A Chemical spray deposition process with mixed nitrate solution as source was developed to prepare thin films of Ba-Y-Cu oxide on sapphire substrate. By adjusting the source composition and deposition conditions, we have successfully obtained the films in thickness of 2–15μm with essentially orthorhombic Ba2YCu3O7 phase. The films behave super conducting transition with onset above 90K and zero resistance at 68.4K to date. It is believed that the tails in the resistance transition can be improved by searching proper heat treatment and using suitable substrates such as ZrO2 and SrTiO3.

scholarly journals The Dependence on Substrate Temperature related to Metal Composition of Deposited YBCO Thin Films by Oxygen Ion Irradiation.

Shinku ◽  
1993 ◽  
Vol 36 (3) ◽  
pp. 285-288
Author(s):  
Masami NAKASONE ◽  
Masao NOMA ◽  
Soucihi OGAWA ◽  
Tsutom Yotsuya ◽  
Yoshihiko SUZUKI
Keyword(s):  
Thin Films ◽  
Substrate Temperature ◽  
Ion Irradiation ◽  
Oxygen Ion ◽  
Ybco Thin Films ◽  
Metal Composition

DC-sputtered high tc superconducting YBCO thin films on silicon substrates

1993 ◽  
Vol 1 (3-6) ◽  
pp. 853-857
Author(s):  
Lelia Ciontea ◽  
Traian Petrisor ◽  
Alin Giurgiu
Keyword(s):  
Thin Films ◽  
Silicon Substrates ◽  
High Tc ◽  
Ybco Thin Films

scholarly journals Possibility of Low Temperature Growth of YBCO Thin Films with Low Energy Oxygen Ion Irradiation.

Shinku ◽  
1992 ◽  
Vol 35 (3) ◽  
pp. 207-210 ◽  
Author(s):  
Masao NOMA ◽  
Masami NAKASONE ◽  
Souichi OGAWA ◽  
Tsutomu YOTSUYA ◽  
Yoshihiko SUZUKI
Keyword(s):  
Thin Films ◽  
Low Temperature ◽  
Ion Irradiation ◽  
Low Energy ◽  
Temperature Growth ◽  
Low Temperature Growth ◽  
Oxygen Ion ◽  
Ybco Thin Films
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