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Related Concept Videos

Types Of Superconductors01:28

Types Of Superconductors

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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...
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An electric field suffers a discontinuity at a surface charge. Similarly, a magnetic field is discontinuous at a surface current. The perpendicular component of a magnetic field is continuous across the interface of two magnetic mediums. In contrast, its parallel component, perpendicular to the current, is discontinuous by the amount equal to the product of the vacuum permeability and the surface current. Like the scalar potential in electrostatics, the vector potential is also continuous...
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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...
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A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
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Related Experiment Video

Updated: Jun 29, 2025

Radio Frequency Magnetron Sputtering of GdBa2Cu3O7âˆ'ÃŽ ´/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 STO Single-crystal Substrates
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Radio Frequency Magnetron Sputtering of GdBa2Cu3O7âˆ'ÃŽ ´/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 STO Single-crystal Substrates

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CrSBr: An Air-Stable, Two-Dimensional Magnetic Semiconductor.

Michael E Ziebel1, Margalit L Feuer1, Jordan Cox1

  • 1Columbia University, Department of Chemistry, New York, New York 10027, United States.

Nano Letters
|April 3, 2024
PubMed
Summary
This summary is machine-generated.

Chromium sulfobromide (CrSBr) is an air-stable, two-dimensional magnetic semiconductor. This material exhibits promising properties for spintronics and quantum applications, with potential for device fabrication.

Keywords:
2D materialsexcitonsmagnetic semiconductorsmagnons

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Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Solid-State Chemistry

Background:

  • Two-dimensional (2D) van der Waals magnets are crucial for next-generation spintronics, magnonics, and quantum information technologies.
  • Challenges with 2D magnets include low magnetic ordering temperatures and poor air stability, hindering practical device integration.
  • CrSBr emerges as a notable exception, offering air stability and unique magnetic and electronic characteristics.

Purpose of the Study:

  • To review the experimental findings on chromium sulfobromide (CrSBr), a promising air-stable 2D magnetic semiconductor.
  • To highlight the material's properties relevant for fundamental research and potential device applications.
  • To provide a perspective on future research directions for CrSBr.

Main Methods:

  • Experimental characterization of bulk CrSBr.
  • Investigation of monolayer and few-layer CrSBr flakes.
  • Analysis of electronic and magnetic properties, including magnetic ordering temperature and coupling effects.

Main Results:

  • CrSBr exhibits quasi-1D semiconducting behavior in its bulk form.
  • The material displays A-type antiferromagnetic order with a Néel temperature (TN) of 132 K.
  • Strong coupling observed between the electronic and magnetic properties of CrSBr.
  • Monolayer and few-layer flakes retain key magnetic and electronic characteristics.

Conclusions:

  • CrSBr is a highly promising air-stable 2D magnetic semiconductor with significant potential for spintronic and quantum applications.
  • Its unique combination of properties, including tunable magnetism and electronic behavior, warrants further in-depth investigation.
  • Future research should focus on device fabrication and exploring novel quantum phenomena in CrSBr-based heterostructures.