Applied physics

, Volume 21, Issue 4, pp 361–367 | Cite as

Influence of uniaxial stress on the Mössbauer spectrum of α-iron

  • J. H. Kjeldgaard
  • G. Trumpy
Contributed Papers


The Mössbauer spectrum of a 20 μm rolled foil of α-iron has been studied as a function of an applied tensile stress. A constant velocity spectrometer was used in transmission geometry. A method involving three-point observations on single lines combined with chopping between two absorbers was used to minimize and evaluate effects of drift. Line displacements amount to approximately one percent of the line width and vary reversibly and linearly with stress. They can be interpreted in terms of changes in isomer shift ΔI, magnetic splitting ΔH and quadrupole shift ΔQ. Comparison with data from hydrostatic pressure experiments indicate that ΔI and ΔH are mainly influenced by volume changes. Observed variations in the area ratio of lines 6 and 5 amount to a few percent and reflect that changes in the magnetization direction are caused by stress. The complicated, irreversible behaviour is interpreted in terms of magnetization rotation and domain wall motion.


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Copyright information

© Springer-Verlag 1980

Authors and Affiliations

  • J. H. Kjeldgaard
    • 1
  • G. Trumpy
    • 1
  1. 1.Laboratory of Applied Physics IITechnical University of DenmarkLyngbyDenmark

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