A Josephson transmission line buffer for reducing leak current in a high-Tc superconductor sampler

2002 ◽  
Vol 378-381 ◽  
pp. 1435-1439 ◽  
Author(s):  
M Hidaka ◽  
M Maruyama ◽  
T Satoh
Author(s):  
H.-J. Ou ◽  
J. M. Cowley

Using the dedicate VG-HB5 STEM microscope, the crystal structure of high Tc superconductor of YBa2Cu3O7-x has been studied via high resolution STEM (HRSTEM) imaging and nanobeam (∽3A) diffraction patterns. Figure 1(a) and 2(a) illustrate the HRSTEM image taken at 10' times magnification along [001] direction and [100] direction, respectively. In figure 1(a), a grain boundary with strong field contrast is seen between two crystal regions A and B. The grain boundary appears to be parallel to a (110) plane, although it is not possible to determine [100] and [001] axes as it is in other regions which contain twin planes [3]. Following the horizontal lattice lines, from left to right across the grain boundary, a lattice bending of ∽4° is noticed. Three extra lattice planes, indicated by arrows, were found to terminate at the grain boundary and form dislocations. It is believed that due to different chemical composition, such structure defects occur during crystal growth. No bending is observed along the vertical lattice lines.


Author(s):  
R. B. Marinenko

Internally oxidized Ag-Mg alloys are used as sheaths for high Tc superconductor wires because of their superior mechanical properties. The preparation and characteristics of these materials have been reported. Performance of the sheaths depends on the concentration of the magnesium which generally is less than 0.5 wt. percent. The purpose of this work was to determine whether electron probe microanalysis using energy dispersive spectrometry (EDS) could be used to quantitate three different Ag-Mg alloys. Quantitative EDS analysis can be difficult because the AgL escape peak occurs at the same energy (1.25 keV) as the Mg Kα peak. An EDS spectrum of a Ag-Mg alloy wire is compared to a pure Ag spectrum in Fig. 1.


1987 ◽  
Vol 48 (10) ◽  
pp. 1623-1625 ◽  
Author(s):  
B. Farnoux ◽  
R. Kahn ◽  
A. Brulet ◽  
G. Collin ◽  
J.P. Pouget

2006 ◽  
Author(s):  
In-Gann Chen ◽  
Maw-Kuen Wu ◽  
Shih-Yun Chen

2019 ◽  
Vol 58 (22) ◽  
pp. 15401-15409 ◽  
Author(s):  
Dan Lin ◽  
Han-Shu Xu ◽  
Jingjing Luo ◽  
Haoliang Huang ◽  
Yalin Lu ◽  
...  

1990 ◽  
Vol 92 (11) ◽  
pp. 6794-6799 ◽  
Author(s):  
R. Shaviv ◽  
E. F. Westrum ◽  
R. J. C. Brown ◽  
M. Sayer ◽  
X. Yu ◽  
...  

1988 ◽  
Vol 35 (9) ◽  
pp. 959-964 ◽  
Author(s):  
Kiichi Oda ◽  
Hitoshi Kitaguchi ◽  
Jun Takada ◽  
Akiyoshi Osaka ◽  
Yoshinari Miura ◽  
...  

1994 ◽  
Vol 231 (3-4) ◽  
pp. 271-276
Author(s):  
Jianglin Wang ◽  
Donald P. Butler ◽  
Zeynep Celik-Butler

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