Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Ferromagnetism01:31

Ferromagnetism

2.7K
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...
2.7K
Paramagnetism01:30

Paramagnetism

2.8K
Paramagnets are materials with unpaired electrons that possess a finite magnetic moment. In the absence of a magnetic field, these moments are randomly oriented, and thus the net moment is zero. Under an external field, a torque acting on the moments tends to align them along the field's direction. However, the random thermal motion of electrons produces a torque opposite to the external field and tries to disorient the moments. These two competing effects align only a few moments along the...
2.8K
Types Of Superconductors01:28

Types Of Superconductors

1.4K
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...
1.4K
Magnetostatic Boundary Conditions01:28

Magnetostatic Boundary Conditions

1.4K
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...
1.4K
Diamagnetism01:26

Diamagnetism

2.7K
Materials consisting of paired electrons have zero net magnetic moments. However, when these materials are placed under an external magnetic field, the moments opposite to the field are induced. Such materials are called diamagnets. Diamagnetism is the response of the diamagnets when placed in an external magnetic field.
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets....
2.7K
Magnetic Susceptibility and Permeability01:31

Magnetic Susceptibility and Permeability

1.8K
In linear magnetic materials, like paramagnets and diamagnets, magnetization is proportional to the magnetic field intensity. The constant of proportionality, a dimensionless number, is called magnetic susceptibility. The value of the susceptibility depends on the type of material.
When diamagnetic materials are placed under an external magnetic field, the moments opposite to the field are induced. Hence, the susceptibility for diamagnets has a minimal negative value of 10-5–10-6. Since...
1.8K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Improper geometric ferroelectricity at the monolayer limit.

Science advances·2026
Same author

Evolution and Suppression of Spin Cycloid in Epitaxial BiFeO<sub>3</sub> Thin Films.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Superconducting phase diagram of multilayer square-planar nickelates.

Science (New York, N.Y.)·2026
Same author

Polar nano-regions enable large spin Hall conductivity in metallic PtCoO<sub>2</sub>.

Nature materials·2026
Same author

Topochemical Fluorination Yields Long-Range Superlattice in Epitaxial La<sub>2</sub>NiO<sub>4</sub> Thin Films.

ACS nano·2026
Same author

Enamel nanocrystal misorientation increased with meat-eating and agriculture.

Nature·2026

Video Experimental Relacionado

Updated: Nov 9, 2025

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
07:03

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

9.0K

Las capas ferrosas de ingeniería atómica producen un multiferroico magnetoeléctrico a temperatura ambiente

Julia A Mundy1, Charles M Brooks2, Megan E Holtz1

  • 1School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA.

Nature
|September 23, 2016
PubMed
Resumen

Los investigadores desarrollaron un nuevo método para crear materiales multiferroicos monofásicos con ferroelectricidad acoplada y un fuerte magnetismo cerca de la temperatura ambiente, lo que permite el control del magnetismo por campo eléctrico para dispositivos de memoria avanzados.

Más Videos Relacionados

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
10:40

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

Published on: April 8, 2018

8.4K
Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
12:20

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

Published on: October 5, 2013

14.9K

Videos de Experimentos Relacionados

Last Updated: Nov 9, 2025

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
07:03

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

9.0K
A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
10:40

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

Published on: April 8, 2018

8.4K
Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
12:20

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

Published on: October 5, 2013

14.9K

Área de la Ciencia:

  • Física de la materia condensada
  • Ciencias de los materiales
  • Química del estado sólido

Sus antecedentes:

  • Los materiales multiferroicos, que exhiben ordenamiento eléctrico y magnético simultáneos, son clave para los dispositivos de memoria de próxima generación.
  • Los multiferroicos monofásicos conocidos son raros debido a los requisitos ferroeléctricos y magnéticos que compiten, a menudo muestran un magnetismo débil o bajas temperaturas de funcionamiento.

Objetivo del estudio:

  • Presentar una nueva metodología para la construcción de materiales multiferoicos monofásicos con ferroelectricidad acoplada y ordenamiento magnético fuerte cerca de la temperatura ambiente.
  • Para permitir el control de campo eléctrico del magnetismo para aplicaciones potenciales del dispositivo.

Principales métodos:

  • Sintetización de superredes (LuFeO3) m/LuFe2O4) 1 mediante la introducción de monocapas de FeO en una matriz hexagonal de LuFeO3.
  • Utilizando el rumble plano del ferroeléctrico geométrico LuFeO3 para inducir la ferroelectricidad en las capas ferrimagnéticas de LuFe2O4.
  • Empleando ingeniería epitaxial y explotando distorsiones de celosía.

Principales resultados:

  • Se crearon con éxito materiales multiferoicos monofásicos con órdenes ferroeléctricas y ferrimagnéticas acopladas cerca de la temperatura ambiente.
  • Aumentó la temperatura de transición magnética de LuFe2O4 de 240 K a 281 K en la estructura de la superred.
  • Se ha demostrado el control directo del campo eléctrico del magnetismo a 200 K.

Conclusiones:

  • La metodología desarrollada permite el diseño de multiferroicos magnetoeléctricos de mayor temperatura.
  • Este enfoque combina frustración geométrica, distorsiones de celosía e ingeniería epitaxial para propiedades de materiales novedosos.
  • Los hallazgos allanan el camino para dispositivos de memoria avanzados con magnetismo sintonizable de campo eléctrico.