The Discovery of Type II Superconductors Part 8 pot
The Discovery of Type II Superconductors Part 8 pot
... slowly in case of B implying lower slope of J
c
-B
curve for sample B. The lower values of the exponents k and m of the irradiated sample
show that there is reduction of the distance of the pinning ... originated during the texturing process, were concentrated.
27 .8
28. 0
28. 2
28. 4
28. 6
28. 8
29.0
0 1020304050607 080
Resistance (mΩ)
t (s)
1 A
1,5 A
2 A...
The Discovery of Type II Superconductors Part 2 pot
... reversible, the hysteresis rather small.
5. The difference in free energy of magnetized and normal superconductors was given by
the area of the curve:
ΔF = ∫МdH,
The Discovery of Type II Superconductors ... superconductivity, the experimental side of the
discovery of these superconductors, as far as the author knows, having been discussed only
fragmen...
The Discovery of Type II Superconductors Part 4 potx
... raises the question of whether the Josephson transitions dominate in the transfer of the
pair of 2D holes in the plane of the nanostructured δ - barriers and in the proximity effect
due to the ... restricted to 2 nm. Therefore, the distribution of the microdefects
created at the initial stage of the oxidation seems to represent the fractal of the S...
The Discovery of Type II Superconductors Part 9 potx
...
0
100
200
300
400
500
600
65 K
68 K
70 K
73 K
75 K
77 K
80 K
82 K
84 K
86 K
88 K
90 K
J
c
(kA cm
-2
)
0.1 mol% TiO
2
0
100
200
01234567
65 K
68 K
70 K
73 K
75 K
77 K
80 K
82 K
84 K
86 K
88 K
90 K
J
c
(kA/cm
2
)
H
a
...
0
50
100
150
01234567
65 K
68 K
70 K
73 K
75 K
77 K
80 K
82 K
84 K
86 K
88 K
90 K
H
a
(T)
μ
0
0.35 mol% TiO
2
Fig. 9. Field dependence of th...
The Discovery of Type II Superconductors Part 11 pot
... to study the Figure of
merit of the ceramic superconductors.
One of the important thermomagnetic transport quantities is the electrothermal conductivity
and is shown to be one of the powerful ... al., 20 08;
Maqsood et al., 1992 ). It was reported that the superconducting properties of these
materials are affected with increase of the amount of doping, regard...
The Discovery of Type II Superconductors Part 1 pdf
... Cu(+III) ions. For the other elements in Table 3, we have
considered the following stable oxidation states: La(+III), Y(+III), Ba( +II) , Sr( +II) , Bi(+III),
Ca( +II) , Tl(+III), Hg( +II) and O( -II) . ... x
Ba
x
CuO
4
1 986 30 Bednorz & Müller, 1 986
(6) YBa
2
Cu
3
O
7 - x
1 987 90 Wu et al., 1 987
(7) Ba
1 - x
K
x
BiO
3
1 988 30 Cava et al.,1 988
(8) BiSrCaCu
2
O
6 + x
1...
The Discovery of Type II Superconductors Part 6 doc
...
MgB
2
.
The parameters of Raman spectra vary with the composition
of MgB
2
crystals and the
influence of their surroundings, which
depends on both the connectivity and the disorder of
the
...
On the contrary,
the ω
3
FWHM increases with SiC addition
and becomes narrow with more addition of Mg.
The Raman scattering
properties are the direct reflection...
The Discovery of Type II Superconductors Part 7 pptx
... Energies of particles were selected
considering the optimisation of nuclear reaction of the projectile with the sample and the
range of particles in the sample. In case of HTSC Bi-cuprates, the ... Fig. 6b. The contribution of the Cu-O
2
planes was considered,
taking together the effects on the oxygen and the copper atoms in those sites. The results
sh...
The Discovery of Type II Superconductors Part 10 ppt
... K
86 K
88 K
90 K
0
0.2
0.4
0.6
0 .8
1
0 0.2 0.4 0.6 0 .8 1
65 K
68 K
70 K
73 K
75 K
77 K
80 K
82 K
84 K
86 K
88 K
90 K
0
0.2
0.4
0.6
0 .8
1
65 K
68 K
70 K
73 K
75 K
77 K
80 K
82 K
84 K
86 K
88 K
90 ... uniformity or on the shapes,
packing and alignment of the regions and/or pores of the size larger than the resolution.
Further development of the technique...
The Discovery of Type II Superconductors Part 12 docx
... on the PVA concentration, which was in the range between 0 and 5 wt%, and the
average T
c
of all samples was 88 .3±3 K.
89 .5 K 86 .2 K 86 .3 K
88 .3 K 88 .5 K
88 .3 K
85 .4 K 88 .5 K
(a)
88 .4 ... size of
the superconductors and the length of the c-axis of the unit cell of the system are highly
effective on both of the first and second chaot...
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