English

Stroboscopic detection of nuclear resonance in an arbitrary scattering channel

Materials Science 2015-03-04 v2 Mesoscale and Nanoscale Physics

Abstract

The theory of heterodyne/stroboscopic detection of nuclear resonance scattering is developed, starting from the total scattering matrix as a product of the matrix of the reference sample and the sample under study. This general approach holds for any dynamical scattering channel. The forward channel, which is discussed in detail in the literature, reveals the speciality that electronic scattering causes only an energy independent diminution of the intensity. For all other channels, complex resonance line shapes in the heterodyne/stroboscopic spectra - as a result of interference of electronic and nuclear scattering - is encountered. The grazing incidence case is evaluated and described in detail. Experimetal data of classical grazing incidence reflection and their stroboscopic detection on [natFe/57Fe]10 and antiferromagnetic [57Fe/Cr]20 multilayers are fitted simultaneously.

Keywords

Cite

@article{arxiv.1408.4326,
  title  = {Stroboscopic detection of nuclear resonance in an arbitrary scattering channel},
  author = {L. Deák and L. Bottyán and R. Callens and R. Coussement and M. Major and S. Nasu and I. Serdons and H. Spiering and Y. Yoda},
  journal= {arXiv preprint arXiv:1408.4326},
  year   = {2015}
}

Comments

23 pages, 4 Postscript figures, uses iucr.sty