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Related Concept Videos

Magnetostatic Boundary Conditions01:28

Magnetostatic Boundary Conditions

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...
Potential Due to a Magnetized Object01:24

Potential Due to a Magnetized Object

Magnetic dipoles in magnetic materials are aligned when placed under an external magnetic field. For paramagnets and ferromagnets, dipole alignment occurs in the direction of the magnetic field. However, the dipoles align opposite to the field in the case of diamagnets. This state of magnetic polarization due to the external field is called magnetization. Magnetization is defined as the dipole moment per unit volume. It plays a similar role to polarization in electrostatics.
The vector...
Magnetic Vector Potential01:15

Magnetic Vector Potential

In electrostatics, the electric field can be written as the negative gradient of the potential. In magnetostatics, the zero divergence of the magnetic field ensures that the magnetic field can be expressed as the curl of a vector potential. This potential is known as the magnetic vector potential.
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Magnetism01:30

Magnetism

Magnets are commonly found in everyday objects, such as toys, hangers, elevators, doorbells, and computer devices. Experimentation on these magnets shows that all magnets have two poles: one is labeled north (N) and the other south (S). Magnetic poles repel if they are alike and attract if unlike. Moreover, both poles of a magnet attract unmagnetized pieces of iron.
An individual magnetic pole cannot be isolated. No matter how small, every piece of a magnet contains a north pole and a south...
Magnetic Fields01:27

Magnetic Fields

A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on any other moving charge or current that is present in the field. Like an electric field, the magnetic field is also a vector field. At any position, the direction of the magnetic field is defined as the direction in which the north pole of a compass needle points.
A magnetic field is defined by the force that a charged particle experiences...
Ferromagnetism01:31

Ferromagnetism

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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Related Experiment Video

Updated: Jun 3, 2026

Radio Frequency Magnetron Sputtering of GdBa2Cu3O7&#8722;&#948;/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 (STO) Single-crystal Substrates
06:49

Radio Frequency Magnetron Sputtering of GdBa2Cu3O7−δ/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 (STO) Single-crystal Substrates

Published on: April 12, 2019

Magnetism at the V/Gd interface.

L Mouketo1, N Binggeli, B M'Passi-Mabiala

  • 1Groupe de Simulations Numériques en Magnétisme et Catalyse, Département de Physique, Université Marien NGouabi, BP 69, Brazzaville, Congo.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|March 12, 2011
PubMed
Summary
This summary is machine-generated.

Vanadium (V) gains a magnetic moment in vanadium/gadolinium (V/Gd) bilayers, aligning antiparallel to Gd. Atomic intermixing at the interface significantly enhances the V magnetic moment, matching experimental findings.

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Chemical Vapor Deposition of an Organic Magnet, Vanadium Tetracyanoethylene
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Chemical Vapor Deposition of an Organic Magnet, Vanadium Tetracyanoethylene

Published on: July 3, 2015

Related Experiment Videos

Last Updated: Jun 3, 2026

Radio Frequency Magnetron Sputtering of GdBa2Cu3O7&#8722;&#948;/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 (STO) Single-crystal Substrates
06:49

Radio Frequency Magnetron Sputtering of GdBa2Cu3O7−δ/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 (STO) Single-crystal Substrates

Published on: April 12, 2019

Chemical Vapor Deposition of an Organic Magnet, Vanadium Tetracyanoethylene
08:25

Chemical Vapor Deposition of an Organic Magnet, Vanadium Tetracyanoethylene

Published on: July 3, 2015

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Surface Science

Background:

  • Bulk vanadium is nonmagnetic, but experimental studies show it acquires a magnetic moment in V/Gd bilayers.
  • Understanding interfacial magnetism is crucial for spintronic applications.

Purpose of the Study:

  • To investigate the magnetic behavior of V/Gd bilayers using ab initio calculations.
  • To explore the influence of interface structure (abrupt vs. intermixed) on V magnetic moments.
  • To elucidate the mechanism behind Gd-V antiferromagnetic coupling.

Main Methods:

  • Ab initio pseudopotential calculations.
  • Modeling V(110)/Gd(0001) bilayers with V layer thicknesses up to 4 monolayers.
  • Analysis of atomic and spin-resolved density of states.

Main Results:

  • Calculations confirm V magnetic moment alignment antiparallel to Gd moment in V/Gd bilayers.
  • Abrupt V/Gd interfaces yield smaller V magnetic moments than experimentally observed.
  • Atomic intermixing at the V/Gd interface leads to significantly larger V magnetic moments, closer to experimental values.

Conclusions:

  • Atomic intermixing plays a critical role in enhancing the V magnetic moment in V/Gd bilayers.
  • The findings provide insights into the mechanism driving the observed Gd-V antiferromagnetic coupling.
  • Theoretical results support experimental observations and offer a deeper understanding of interfacial magnetism.