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Article
Electronic Properties of Fe2+ in Cubic KMgF3 from Mössbauer Spectroscopy
Physical Review B
  • Richard B. Frankel, Massachusetts Institute of Technology
  • J. Chappert, Centre d'Etudes Nucléaires de Grenoble, France
  • J. R. Regnard, Centre d'Etudes Nucléaires de Grenoble, France
  • A. Misetich, Massachusetts Institute of Technology
  • C. R. Abeledo, Brandeis University
Publication Date
4-1-1972
Abstract

Iron-doped KMgF3 single crystals have been studied by Mössbauer spectroscopy of Fe57. Single lines due to Fe2+ and Fe3+ are observed at room temperature. For TK, the Fe2+ line splits into a quadrupole doublet with a splitting ΔEQ=0.44±0.02 mm/sec. Comparison with a random-strain model due to Ham yields a value of 120 cm-1 for the position of the first excited spin-orbit split level. Magnetic hyperfine structure in external magnetic fields at low temperature is observed and analysis yields a value of -495 ±30 kOe for the corepolarization hyperfine field in Fe2+ and a value of 4.1 a.u. for〈1/r3〉.

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Publisher statement
This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Physical Society. The following article appeared in Physical Review B.
Citation Information
Richard B. Frankel, J. Chappert, J. R. Regnard, A. Misetich, et al.. "Electronic Properties of Fe2+ in Cubic KMgF3 from Mössbauer Spectroscopy" Physical Review B Vol. 5 Iss. 7 (1972) p. 2469 - 2474
Available at: http://works.bepress.com/rfrankel/62/