Nonlinear response of permanent dipoles in a uniaxial potential to alternating fields

W.T. Coffey, Derrick Crothers, Y.P. Kalmykov, P.M. Dejardin

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

It is shown how the existing theory of the dynamic Kerr effect and nonlinear dielectric relaxation based on the noninertial Brownian rotation of noninteracting rigid dipolar particles may be generalized to take into account interparticle interactions using the Maier-Saupe mean field potential. The results (available in simple closed form) suggest that the frequency dependent nonlinear response provides a method of measuring the Kramers escape rate (or in the analogous problem of magnetic relaxation of fine single domain ferromagnetic particles, the superparamagnetic relaxation time).
Original languageEnglish
Article number062102
Pages (from-to)062102-062102
Number of pages1
JournalPhysical Review E
Volume71
Issue number6
Publication statusPublished - Jun 2005

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Condensed Matter Physics
  • Statistical and Nonlinear Physics
  • Mathematical Physics

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