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

Valence Bond Theory02:42

Valence Bond Theory

8.3K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.3K
Colors and Magnetism03:02

Colors and Magnetism

11.3K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
11.3K
Ferromagnetism01:31

Ferromagnetism

2.3K
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...
2.3K
π Electron Effects on Chemical Shift: Overview01:27

π Electron Effects on Chemical Shift: Overview

1.0K
An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0,...
1.0K
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

808
NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of...
808
Diamagnetism01:26

Diamagnetism

2.3K
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....
2.3K

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

Anchoring-Induced Interphase via Dual Mortise-Tenon Interactions for Synergistic Stabilization of Surface Co and O in High-Voltage LiCoO<sub>2</sub> Cathodes.

Angewandte Chemie (International ed. in English)·2026
Same author

High-Spin Pt Sites of Intermetallic Compound via Pinning Effect Boost Oxygen Reduction Performance.

Angewandte Chemie (International ed. in English)·2026
Same author

Inverse Design of Anthraquinone-Mimicking COFs via Electronic Fingerprints for Sacrificial-Agent-Free Photocatalytic H<sub>2</sub>O<sub>2</sub> Production under Visible Light.

Journal of the American Chemical Society·2026
Same author

Theoretical Perspectives of Precision Chemistry.

Precision chemistry·2026
Same author

KSSOLV Toolbox: A MATLAB Graphical User Interface for Plane-Wave Density Functional Theory Calculations.

Journal of chemical theory and computation·2026
Same author

Surface Gradient Doping Enables High-Capacity and Long-Life Manganese-Based Prussian Blue Cathodes for Sodium-Ion Batteries.

Angewandte Chemie (International ed. in English)·2026

Video Experimental Relacionado

Updated: May 11, 2025

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
09:06

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

Published on: March 24, 2019

8.0K

Alternadores de marco metálico-orgánico con valles de división de espín electricamente sintonizables

Yixuan Che1, Haifeng Lv2, Xiaojun Wu2,3

  • 1Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China.

Journal of the American Chemical Society
|April 19, 2025
PubMed
Resumen

Los altermagnetos Bilayer ofrecen nuevas posibilidades para la espíntrónica y la valleytrónica. Este estudio identifica nuevos materiales con control de espín, valle y capa integrados, lo que permite la división de espín ajustable para dispositivos electrónicos avanzados.

Más Videos Relacionados

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
07:42

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Published on: July 20, 2022

2.6K
Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

1.8K

Videos de Experimentos Relacionados

Last Updated: May 11, 2025

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
09:06

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

Published on: March 24, 2019

8.0K
Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
07:42

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Published on: July 20, 2022

2.6K
Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

1.8K

Área de la Ciencia:

  • Física de la materia condensada
  • Ciencias de los materiales
  • Mecánica Cuántica

Sus antecedentes:

  • Los altermagnetos Bilayer exhiben un bloqueo de valle de espín mediado por capas, crucial para la espíntrónica y la valleytrónica.
  • Comprender las propiedades de simetría de estos materiales es clave para desbloquear su potencial.

Objetivo del estudio:

  • Para llevar a cabo un análisis de simetría integral de los altermagnetos de dos capas.
  • Para identificar materiales candidatos con acoplamiento de la capa del valle de espín.
  • Explorar el diseño de materiales con división de espín ajustable.

Principales métodos:

  • Análisis de simetría de los altermagnetos de dos capas.
  • Diseño teórico de materiales que utilizan estructuras metálicas orgánicas de dos capas.
  • Modificación química para lograr simetrías específicas (por ejemplo, S4).

Principales resultados:

  • Se han identificado siete grupos candidatos de puntos de giro con acoplamiento de la capa del valle de giro.
  • Las estructuras metálicas orgánicas de doble capa con simetría S4 diseñadas teóricamente.
  • Se logró la división del espín en la banda de valencia con respuestas sintonizables a los campos eléctricos.

Conclusiones:

  • Se estableció un marco que integra los grados de libertad de espín, valle y capa en altermagnetos de dos capas.
  • Los hallazgos allanan el camino para las aplicaciones de espíntrónica y valleytrónica a nanoescala.
  • La división de giro ajustable ofrece un control preciso para futuros dispositivos electrónicos.