Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

The Hall Effect01:30

The Hall Effect

4.1K
Edwin H. Hall, in the year 1879, devised an experiment that could be used to identify the polarity of the predominant charge carriers in a conducting material. From a historical perspective, this experiment was the first to demonstrate that the charge carriers in most metals are negative.
4.1K
Magnetic Fields01:27

Magnetic Fields

7.1K
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...
7.1K
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

1.9K
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 one, the...
1.9K
Diamagnetism01:26

Diamagnetism

2.9K
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....
2.9K
Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

1.2K
In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis.
1.2K
Magnetic Field Of A Current Loop01:16

Magnetic Field Of A Current Loop

6.2K
Consider a circular loop with a radius a, that carries a current I. The magnetic field due to the current at an arbitrary point P along the axis of the loop can be calculated using the Biot-Savart law.
6.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Topology-guided rotational dynamics of magnetic soliton assemblies under pulsed current.

Nature communications·2026
Same author

Dynamical Superconducting Parity Effect in a Coulomb Pb Island.

Physical review letters·2026
Same author

Emergent reactance induced by the deformation of a current-driven skyrmion lattice.

Nature communications·2026
Same author

Wave-Function-Free Approach for Predicting Nonlinear Responses in Weyl Semimetals.

Physical review letters·2026
Same author

Nanosculpted 3D helices of a magnetic Weyl semimetal with switchable non-reciprocal electron transport.

Nature nanotechnology·2026
Same author

Nonreciprocal transport in a room-temperature chiral magnet.

Science advances·2025

Related Experiment Video

Updated: Jan 19, 2026

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

3.3K

Spin current and accumulation generated by the spin Hall insulator.

Masaru Onoda1, Naoto Nagaosa

  • 1Correlated Electron Research Center (CERC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan. m.onoda@aist,go.jp

Physical Review Letters
|October 4, 2005
PubMed
Summary

This study theoretically investigates spin current and accumulation in spin Hall insulators (SHI). Researchers found that leakage current breaking time-reversal symmetry can generate usable spin current and accumulation in attached conductors.

More Related Videos

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

10.2K
Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
15:58

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

Published on: December 3, 2013

6.1K

Related Experiment Videos

Last Updated: Jan 19, 2026

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

3.3K
Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

10.2K
Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
15:58

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

Published on: December 3, 2013

6.1K

Area of Science:

  • Condensed matter physics
  • Spintronics
  • Theoretical physics

Background:

  • Spin Hall insulators (SHI) are materials exhibiting the spin Hall effect.
  • Understanding spin current generation and accumulation in SHIs is crucial for spintronic device applications.
  • Previous theoretical frameworks often simplify the complex interplay of electronic states.

Purpose of the Study:

  • To theoretically investigate the generation of spin current and accumulation in spin Hall insulators (SHI) under an electric field.
  • To analyze the role of hybridization between metallic contacts and SHI bands.
  • To explore mechanisms for producing net spin current and accumulation in attached conductors.

Main Methods:

  • Utilizing the Keldysh formalism for theoretical investigation.
  • Analyzing the electronic band structure and hybridization effects.
  • Modeling spin current and accumulation dynamics near contacts and in attached conductors.

Main Results:

  • Spin current generation is primarily localized near contacts due to hybridization.
  • Massless edge modes, unlike in quantum Hall systems, are generally absent.
  • Leakage charge current, by breaking time-reversal symmetry, enables spin current and accumulation in attached conductors.

Conclusions:

  • Spin current and accumulation in SHIs are significantly influenced by contact hybridization and symmetry breaking.
  • The Keldysh formalism provides a robust framework for studying these phenomena.
  • Practical spintronic applications may be feasible by exploiting leakage currents in SHI-conductor systems.