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Related Concept Videos

Superconductor01:24

Superconductor

1.2K
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...
1.2K
Types Of Superconductors01:28

Types Of Superconductors

1.0K
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...
1.0K
Theory of Metallic Conduction01:17

Theory of Metallic Conduction

1.4K
The conduction of free electrons inside a conductor is best described by quantum mechanics. However, a classical model makes predictions close to the results of quantum mechanics. It is called the theory of metallic conduction.
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
1.4K
Ferromagnetism01:31

Ferromagnetism

2.4K
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
2.4K
Equipotential Surfaces and Conductors01:16

Equipotential Surfaces and Conductors

3.5K
For a conductor in which all charges are at rest, the conductor's surface is equipotential. The electric field is always perpendicular to equipotential surfaces. Therefore, in a conductor with static charges, the electric field just outside the conductor is always perpendicular to the conductor's surface. Any tangential component of the electric field will cause charges to move inside the conductor, which will violate the electrostatic nature of the system. In an electrostatic...
3.5K
Network Covalent Solids02:18

Network Covalent Solids

13.5K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
13.5K

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Updated: Jul 18, 2025

Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride
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Topological Superconductors from a Materials Perspective.

Manasi Mandal1,2, Nathan C Drucker1,3, Phum Siriviboon4

  • 1Quantum Measurement Group, MIT, Cambridge, Massachusetts 02139, United States.

Chemistry of Materials : a Publication of the American Chemical Society
|August 28, 2023
PubMed
Summary
This summary is machine-generated.

Topological superconductors (TSCs) are promising for quantum computation due to their robust Majorana bound states. However, identifying new TSC candidates and their properties remains challenging, requiring new experimental and computational approaches.

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Area of Science:

  • Condensed Matter Physics
  • Quantum Computing
  • Materials Science

Background:

  • Topological superconductors (TSCs) are of significant interest for topological quantum computation.
  • They host Majorana bound states, which are robust against local perturbations, making them ideal qubits.
  • A major challenge is the limited number of known TSC candidates and elusive experimental signatures.

Purpose of the Study:

  • To provide a comprehensive overview of topological superconductor basics, theories, and material candidates.
  • To review experimental techniques used to identify and probe TSCs.
  • To highlight the challenges in conclusively identifying TSC candidates and to call for advancements.

Main Methods:

  • Review of existing literature on topological superconductor theory and experimental findings.
  • Overview of natural and synthetic material systems proposed as TSC candidates.
  • Discussion of various experimental techniques for probing topological superconductivity.

Main Results:

  • Identified a scarcity of topological superconductor candidates.
  • Highlighted the difficulty in obtaining conclusive experimental evidence for TSCs.
  • Presented a range of material candidates and probing techniques.

Conclusions:

  • The search for new topological superconductor candidates requires novel experimental signatures.
  • Enhanced computational support is crucial for accelerating the discovery of TSCs.
  • Overcoming current challenges will advance the field of topological quantum computation.