ISSN:
1572-9540
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Magnetic phase transitions in some new compounds of melilite structure $$(P\overline 4 2_1 m)$$ with extremely high iron content A2Fe2BO7 (A=Ba, Sr; B=Ge, Si) were observed at low temperatures by means of Mössbauer spectroscopy. It was found that Fe3+ magnetic moments are ordered by superexchange interaction in two sublattices with wide distributions of relatively low magnetic fields. The effect of Ba2+»Sr2+ and Ge4+»Si4+ cation substitutions on this magnetic ordering is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02407703
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