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 Experiment Videos

High frequency modes in vortex-state nanomagnets.

B A Ivanov1, C E Zaspel

  • 1Institute of Magnetism, NASU, Kiev 03142, Ukraine.

Physical Review Letters
|February 9, 2005
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Empowering Control of Antiferromagnets by THz-Induced Spin Coherence.

Physical review letters·2023
Same author

Coherent spin-wave transport in an antiferromagnet.

Nature physics·2021
Same author

Ultrafast control of magnetic interactions via light-driven phonons.

Nature materials·2021
Same author

Giant nonlinear damping in nanoscale ferromagnets.

Science advances·2019
Same author

Excitation of coupled spin-orbit dynamics in cobalt oxide by femtosecond laser pulses.

Nature communications·2017
Same author

Femtosecond single-shot imaging and control of a laser-induced first-order phase transition in HoFeO<sub>3</sub>.

Journal of physics. Condensed matter : an Institute of Physics journal·2017

Researchers studied magnon excitation spectra in nanomagnets using Landau-Lifshitz equations. They discovered rich doublet states whose splitting is amplified by external magnetic fields, offering insights into magnetic behavior.

Area of Science:

  • Condensed Matter Physics
  • Magnetism and Magnetic Materials

Background:

  • Understanding magnetic excitations in nanomaterials is crucial for developing advanced magnetic devices.
  • Vortex ground states in cylindrical nanomagnets exhibit complex dynamic behaviors.

Purpose of the Study:

  • To investigate the magnon mode excitation spectrum in vortex state cylindrical nanomagnets.
  • To analyze the influence of external magnetic fields on these excitation modes.

Main Methods:

  • Linearized Landau-Lifshitz equations were employed to model the system.
  • Calculations focused on the dynamic response of nanomagnets in an external magnetic field.

Main Results:

  • A rich spectrum of doublet states was identified in the magnon excitation spectrum.

Related Experiment Videos

  • The splitting of these doublet states was found to be amplified by the application of an external magnetic field.

    • Conclusions:

    • The study reveals complex magnetic excitation dynamics in nanomagnets.
    • External magnetic fields provide a tunable mechanism to modify magnon mode splitting, impacting potential applications.