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Electron delocalization and magnetic behavior in a single crystal of ilvaite, a mixed valence iron silicate

✍ Scribed by D. Ghosh; T. Kundu; S. Dasgupta; Subralā Ghose

Publisher
Springer-Verlag
Year
1987
Tongue
English
Weight
567 KB
Volume
14
Category
Article
ISSN
0342-1791

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llvaite, Ca (Fe 2 +,Fe 3 +)Fez + Si208(OH) shows two magnetic phase transitions, which have been studied by M6ssbauer spectroscopy within the temperature range 120-4 K. The continued charge localization between Fe 2+ and Fe 3 + ions in octahedral A-sites causes the Fe 2 + -Fe 3 + interaction to be f