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Hyperfine interactions in MgF2:Fe2+ and ZnF2:Fe2+ by Mössbauer spectroscopy

✍ Scribed by C.R. Abeledo; R.B. Frankel; A.A. Misetich

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
316 KB
Volume
31
Category
Article
ISSN
0009-2614

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✦ Synopsis

Measurement of the magnetic hyperfine interaction in paramagneti: Fe '+ in ZnFz and MgF2 by hlijssbauer spectroscopy is deported. The r&Its, -275 f 3 kOe and -2i0 2 3 kG+ for ZnFz: Fe*+ and MgF2 : Fe*+ respectively are compkied with a previous analysis of hyperfme interactioni in the rutile fluorides. . we report the measorement.0: the.mametic hyperfine int&actions in Fe2+ in single crystals of MgF, '. Fe2'. The zero field Sp&a from 4.2 K to 300 k consist of qsladrupole doubl&.s (table 1) with appropriate * Towhdm tiorrespondence should @z addressed.' ** Supported by ihe National ,%ier.ce Foundation.

intensities for the G and c faces, providing-evidence-

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## Abstract SnO~2~–Fe~2~O~3~ nanopowders prepared by the polymeric precursor method were studied by combined conventional and high‐resolution techniques. The powders treated at 500 °C were analyzed by EDS local probe associated with HRTEM to directly detect surface segregation of Fe ions onto SnO~2