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Types Of Superconductors01:28

Types Of Superconductors

A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
Superconductor01:24

Superconductor

A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
Magnetic Field Due to Two Straight Wires01:18

Magnetic Field Due to Two Straight Wires

Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.
Magnetic Field Of A Current Loop01:16

Magnetic Field Of A Current Loop

Consider a circular loop with a radius a, that carries a current I. The magnetic field due to the current at an arbitrary point P along the axis of the loop can be calculated using the Biot-Savart law.
Magnetic Force Between Two Parallel Currents01:13

Magnetic Force Between Two Parallel Currents

Two long, straight, and parallel current-carrying conductors exert a force of equal magnitude on one another. The direction of the force depends on the current direction in the conductors.
The force exerted by the magnetic field due to the first conductor over a finite length of the second conductor is given as the product of the current in the second conductor and  the vector product of the length vector along the current element and the field due to the first conductor. According to the...
Magnetic Force On Current-Carrying Wires: Example01:22

Magnetic Force On Current-Carrying Wires: Example

In a magnetic field, moving charges encounter a force. If a wire contains these moving charges, i.e., if the wire is carrying a current, then a force acts on the wire as well. Consider a pair of flexible leads holding a wire that is 40 cm long and 10 g in weight in a horizontal position. The wire is placed in a constant magnetic field of 0.40 T, as shown in Figure 1(a). Determine the magnitude and direction of the current flowing in the wire needed to remove the tension in the supporting leads.

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Dielectric properties of single crystals of barium titanate.

Nature·2010
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Superconductivity--the state that came in from the cold.

Science (New York, N.Y.)·1988
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Why is there no bulk specific heat anomaly at the superconducting transition temperature of BaPb(1-x) Bi(x) O(3)?

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Enhancement of Superconductivity through Lattice Softening.

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Related Experiment Video

Updated: Jul 12, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

High-field, high-current superconductors.

J K Hulm, B T Matthias

    Science (New York, N.Y.)
    |May 23, 1980
    PubMed
    Summary

    This study explores superconducting materials, crucial for creating high-field electromagnets used in advanced technologies like fusion reactors. These materials enable loss-free operation, advancing superconducting electrotechnology.

    Area of Science:

    • Materials Science
    • Condensed Matter Physics
    • Electrical Engineering

    Background:

    • Superconducting materials exhibit zero electrical resistance.
    • They can carry high current densities (approx. 10^6 A/cm²) in strong magnetic fields (up to 50 T).
    • These properties are vital for developing loss-free electromagnets.

    Purpose of the Study:

    • To examine the materials science aspects of high-performance superconducting materials.
    • To provide an overview of the physical principles behind superconductivity.
    • To discuss the technological adaptation of these materials for electromagnet applications.

    Main Methods:

    • Review of physical principles governing superconductivity.
    • Analysis of key superconducting material parameters.

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    High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
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    High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

    Published on: October 10, 2014

    Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride
    04:51

    Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride

    Published on: July 8, 2021

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    Last Updated: Jul 12, 2026

    Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
    05:39

    Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

    Published on: August 2, 2019

    High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
    08:42

    High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

    Published on: October 10, 2014

    Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride
    04:51

    Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride

    Published on: July 8, 2021

  • Discussion of technological requirements for electromagnet winding.

    • Main Results:

    • Superconducting materials are essential for high-magnetic-field generation.
    • Their application is foundational to superconducting electrotechnology.
    • The study covers materials, principles, and technological adaptation.

    Conclusions:

    • Superconducting materials are key to advancing electrotechnology.
    • Future possibilities exist for materials enabling even higher magnetic fields.
    • Continued materials research is critical for future applications.