Mossbauer and magnetization studies of Fe2BO4
| dc.contributor.author | Douvalis, A. P. | en |
| dc.contributor.author | Papaefthymiou, V. | en |
| dc.contributor.author | Moukarika, A. | en |
| dc.contributor.author | Bakas, T. | en |
| dc.contributor.author | Kallias, G. | en |
| dc.date.accessioned | 2015-11-24T18:40:24Z | |
| dc.date.available | 2015-11-24T18:40:24Z | |
| dc.identifier.issn | 0953-8984 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/17614 | |
| dc.rights | Default Licence | - |
| dc.subject | iron | en |
| dc.title | Mossbauer and magnetization studies of Fe2BO4 | en |
| heal.abstract | Polycrystalline Fe2BO4 prepared by solid-state reaction was investigated over a wide temperature range using Mossbauer spectroscopy and magnetization and resistivity measurements. The Mossbauer data below 270 K reveal four iron sites (two Fe2+ and two Fe3+) in a 1:1:1:1 ratio. Above this temperature, electron delocalization sets in between the divalent-trivalent iron ions and up to 400 K both delocalized and localized iron states are observed. The magnetization and Mossbauer data indicate that this oxoborate mixed-valence system is an L-type ferrimagnet below T-c = 155 K, with the iron atoms in each sublattice having different point symmetries and different magnetic interactions. The resistivity data show the first-order nature of the charge-ordering transition (T-co = 316 K). | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.secondary | <Go to ISI>://000085908500008 | - |
| heal.identifier.secondary | http://iopscience.iop.org/0953-8984/12/2/307/pdf/0953-8984_12_2_307.pdf | - |
| heal.journalName | Journal of Physics-Condensed Matter | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2000 | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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