Hyperfine Interactions

, Volume 163, Issue 1, pp 73–88

Mössbauer Spectra of Noninteracting Single-Domain Ferromagnetic Particles Including Superparamagnetic Relaxation: Simplification of the Multilevel Method

  • P. M. Déjardin
  • W. T. Coffey

DOI: 10.1007/s10751-004-5451-x

Cite this article as:
Déjardin, P.M. & Coffey, W.T. Hyperfine Interact (2005) 163: 73. doi:10.1007/s10751-004-5451-x


A simple method of calculation of Mössbauer relaxation spectra of single-domain ferromagnetic particle assemblies is developed from Brown's model of coherent rotation of the magnetization utilizing matrix continued fractions to compute the lineshape. The method allows one to obtain a simple analytical formula for the lineshape in the strong relaxation limit, which provides results in agreement with numerical calculations and radically simplifies analysis of the spectra.


Mössbauer relaxation spectrasuperparamagnetic relaxationsingle-domain ferromagnetic particlesmultilevel methodmatrix continued fraction method

Copyright information

© Springer 2006

Authors and Affiliations

  • P. M. Déjardin
    • 1
  • W. T. Coffey
    • 2
  1. 1.Lab. de Mathématiques et Physique pour les Systémes, Groupe de Physique MoléculaireUniversité de PerpignanPerpignan CedexFrance
  2. 2.Department of Electronics and Electrical EngineeringTrinity CollegeDublin 2Ireland