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Valence averaging and phase transitions in europium (Eu2VO4) and iron (RSr2Fe3O9) compounds

✍ Scribed by I. Nowik; R.H. Herber; I. Felner; V.P.S. Awana


Book ID
110315280
Publisher
Springer
Year
2000
Tongue
English
Weight
84 KB
Volume
126
Category
Article
ISSN
0304-3843

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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