Annotation
The Mössbauer spectra of nickel ferrite NiGa$_x$Al$_x$Fe$_{2-2x}$O$_4$ were measured with significant dilution by nonmagnetic ions (with ${x=0.5}$, 0.7, and 0.8). In the temperature range of 90–295 K, the ratio of the near- and long-range forces was experimentally found and the Curie temperatures were determined.
Received: 2010 March 9
Approved: 2010 November 13
PACS:
75.50.Gg Ferrimagnetics
76.80.+y Mössbauer effect; other γ-ray spectroscopy
75.30.Et Exchange and superexchange interactions
76.80.+y Mössbauer effect; other γ-ray spectroscopy
75.30.Et Exchange and superexchange interactions
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
A.A. Opalenko$^1$, A.I. Firov$^1$, A.B. Korshak$^2$, L.G. Antoshina$^2$
$^1$Department of Solid State Physics, Faculty of Physics, Moscow State University, Moscow, 119991, Russia
$^2$Department of General Physics and Magneto-Ordered Media Faculty of Physics, Moscow State University, Moscow, 119991, Russia
$^1$Department of Solid State Physics, Faculty of Physics, Moscow State University, Moscow, 119991, Russia
$^2$Department of General Physics and Magneto-Ordered Media Faculty of Physics, Moscow State University, Moscow, 119991, Russia
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