Pure nuclear Bragg reflection of a periodic 56Fe/57Fe multilayer

L. Deák, G. Bayreuther, L. Bottyán, E. Gerdau, J. Korecki, E. I. Kornilov, H. J. Lauter, O. Leupold, D. L. Nagy, A. V. Petrenko, V. V. Pasyuk-Lauter, H. Reuther, E. Richter, R. Röhloberger, E. Szilágyi

Research output: Contribution to journalArticle

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Abstract

Grazing incidence nuclear multilayer diffraction of synchrotron radiation from a periodic stack of alternating 56Fe and 57Fe layers was observed. Resonant layer fraction, substrate size, flatness, and surface roughness limits were optimized by previous simulations. The isotopic multilayer (ML) sample of float glass/57Fe(2.25nm)/[56Fe(2.25nm)/ 57Fe(2.25nm)]×15/Al(9.0nm) nominal composition was prepared by molecular beam epitaxy at room temperature. Purity structure and lateral homogenity of the isotopic ML film was characterized by magnetometry, Auger electron, Rutherford backscattering, and conversion electron Mössbauer spectroscopies. The isotopic ML structure was investigated by neutron and synchrotron Mössbauer reflectometry. Surface roughness of about 1 nm of the flat substrate (curvature radius >57 m) was measured by scanning tunneling microscopy and profilometry. A pure nuclear Bragg peak appeared in synchrotron Mössbauer reflectometry at the angle expected from neutron reflectometry while no electronic Bragg peak was found at the same position by x-ray reflectometry. The measured width of the Bragg peak is in accordance with theoretical expectations.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalJournal of Applied Physics
Volume85
Issue number1
DOIs
Publication statusPublished - 1999

Fingerprint

surface roughness
synchrotrons
roughness
neutrons
floats
flatness
grazing incidence
laminates
magnetic measurement
electron spectroscopy
scanning tunneling microscopy
backscattering
synchrotron radiation
purity
molecular beam epitaxy
curvature
radii
glass
room temperature
electronics

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Deák, L., Bayreuther, G., Bottyán, L., Gerdau, E., Korecki, J., Kornilov, E. I., ... Szilágyi, E. (1999). Pure nuclear Bragg reflection of a periodic 56Fe/57Fe multilayer. Journal of Applied Physics, 85(1), 1-7. https://doi.org/10.1063/1.369470

Pure nuclear Bragg reflection of a periodic 56Fe/57Fe multilayer. / Deák, L.; Bayreuther, G.; Bottyán, L.; Gerdau, E.; Korecki, J.; Kornilov, E. I.; Lauter, H. J.; Leupold, O.; Nagy, D. L.; Petrenko, A. V.; Pasyuk-Lauter, V. V.; Reuther, H.; Richter, E.; Röhloberger, R.; Szilágyi, E.

In: Journal of Applied Physics, Vol. 85, No. 1, 1999, p. 1-7.

Research output: Contribution to journalArticle

Deák, L, Bayreuther, G, Bottyán, L, Gerdau, E, Korecki, J, Kornilov, EI, Lauter, HJ, Leupold, O, Nagy, DL, Petrenko, AV, Pasyuk-Lauter, VV, Reuther, H, Richter, E, Röhloberger, R & Szilágyi, E 1999, 'Pure nuclear Bragg reflection of a periodic 56Fe/57Fe multilayer', Journal of Applied Physics, vol. 85, no. 1, pp. 1-7. https://doi.org/10.1063/1.369470
Deák L, Bayreuther G, Bottyán L, Gerdau E, Korecki J, Kornilov EI et al. Pure nuclear Bragg reflection of a periodic 56Fe/57Fe multilayer. Journal of Applied Physics. 1999;85(1):1-7. https://doi.org/10.1063/1.369470
Deák, L. ; Bayreuther, G. ; Bottyán, L. ; Gerdau, E. ; Korecki, J. ; Kornilov, E. I. ; Lauter, H. J. ; Leupold, O. ; Nagy, D. L. ; Petrenko, A. V. ; Pasyuk-Lauter, V. V. ; Reuther, H. ; Richter, E. ; Röhloberger, R. ; Szilágyi, E. / Pure nuclear Bragg reflection of a periodic 56Fe/57Fe multilayer. In: Journal of Applied Physics. 1999 ; Vol. 85, No. 1. pp. 1-7.
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