superconducting material

superconducting material

[¦sü·pər·kən′dəkt·iŋ mə′tir·ē·əl]
(solid-state physics)
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Traditional analytical and microscopy tools reveal the microstructure and composition of a superconducting material, but they aren't sensitive to superconducting performance and thus do not pinpoint failure modes.
One beam deposits atoms of the superconducting material, while the second one aligns the crystals as they form.
Applying a new imaging technique, researchers in Japan have for the first time directly observed the movement of tiny whirlpools of magnetism trapped in a superconducting material. Their observations help settle a long-standing debate concerning the behavior of these vortices as the temperature of an oxide superconductor -- placed in a magetic field -- is varied.
Up to date, no theory exists which would allow for a rational design of a superconducting material with a transition temperature above room temperature.
To make a superconductor with the same characteristics as a P-N semiconductor junction, Chu needs to find a superconducting material with two types of charge carriers.
They had detected irregularities in electron micrographs of one sample, and closer investigation revealed tiny, isolated regions of superconducting material embedded in the semiconductor film.
A fine wire made from a superconducting material and stretched along the cylinder's central axis served as a sensor, allowing the researchers to measure the flow of liquid helium-3 within the rotating cylinder.
When an electric current courses through such a superconducting material, it pushes against the fluxoids.
Scientists at NASA's Lewis Research Center in Cleveland have used the superconducting material yttrium-barium-copper sulfate to make a simple experimental circuit, which operates in the 33- to 37-gigahertz frequency range.
However, because the superconducting material contains impurities, these currents and the magnetic field they generate somehow become trapped.
It follows from the above relations that such parameters as the size of the magnetic system, the total toroidal current, the volume of the superconducting material are determined not only by the stored energy of the magnetic field, but also by the dimensionless characteristics of the magnetic system [k.sub.W], [k.sub.B], [k.sub.l] and related characteristics [k.sub.R], [k.sub.I], [k.sub.sc].
A thin film of YBCO (superconducting material) layer was deposited on un-doped silicon by sputtering.

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