The Discovery of Type II Superconductors Part 11 pot
The Discovery of Type II Superconductors Part 11 pot
... was reported that the superconducting properties of these
materials are affected with increase of the amount of doping, regardless of the nature of the
dopants. The repression of superconductivity ... to study the Figure of
merit of the ceramic superconductors.
One of the important thermomagnetic transport quantities is the electrothermal conductivity...
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 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 ... matrix of intensity values, I(r), associated
with the intensity of the interference at each point of the image. The characteristics of the
CCD camera...
The Discovery of Type II Superconductors Part 9 potx
... micrograph of the NEG-123 + 35 mol% Gd- 211 (70 nm) with 0.1
mol% TiO
2
. Besides the rather large precipitate of NEG- 211 seen in the right figure, two
types of nanoparticles appear in the product, ... deformation of 2.2
μm (8 fringes) and a minimum one of
approximately 0.56
μm (2 fringes) in the right part of the sample. In the rest of the images,
the...
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) . ... coherence length is of the order of
the distance between two atoms, the order of magnitude of the width of the insulator film
should be about one angstrom, and...
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
... −−
⎣
⎦
(7)
with Z
k
being the atomic number of the k-atom, r
0
is the electron classic radius, α = Z
k
/137, β
is the ratio of the electron velocity to the...
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 purpose ... 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 res...
The Discovery of Type II Superconductors Part 10 ppt
... 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 and improvement of the resolution is ... the sample D. The white ‘spots’ of
the high density material in this sample are of regular sphere- and ellipsoidal- like or of the
irregular shape. One can appre...
The Discovery of Type II Superconductors Part 12 docx
... 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 chaotic points of the superconducting system.
2. The ... Determination of the chaotic points
3.1 The analysis of temperature dependence of magnetization
The concept of chaos can be defined as the transitio...
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