On the surface gyromagnetic plasmons in a metal sphere

Sergey Bastrukov, Pik Yin Lap

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


It is argued that in the long wavelength limit of electromagnetic, far infrared, field optical response of an ultrafine metal particle threaded by uniform magnetic field can be properly modeled by equations of semiclassical electron theory in terms of the surface inertial-wave-like oscillations of free electrons driven by Lorentz restoring force. The detailed calculation of the frequency of size-independent gyromagnetic plasmon resonances computed as a function of multipole degree of electron cyclotron oscillations is presented. This spectrum is derived in juxtaposition with the canonical Mie's spectral formula for the surface plasmon resonances caused by the Coulomb-force-driven plasma oscillations of conduction electrons.

Original languageEnglish
Pages (from-to)81-86
Number of pages6
JournalSurface Review and Letters
Issue number1
StatePublished - Feb 2006


  • Electron cyclotron oscillations
  • Gyromagnetic plasmons
  • Metal nanoparticles


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