Study of the Verwey transition in magnetite by low field and magnetically modulated non-resonant microwave absorption

We have investigated the Verwey phase transition (VPT) by two novel non-resonant microwave absorption techniques: low-field absorption (LFA) and magnetically modulated microwave absorption spectroscopy (MAMMAS). Measurements were carried out on sintered polycrystalline samples of Fe 3O 4, in the 77–...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2007-09, Vol.316 (2), p.e738-e740
Main Authors: Gutiérrez, M.P., Alvarez, G., Montiel, H., Zamorano, R., Valenzuela, R.
Format: Article
Language:English
Subjects:
Magnetite
Non-resonant absorption technique
Verwey phase transition
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Summary:We have investigated the Verwey phase transition (VPT) by two novel non-resonant microwave absorption techniques: low-field absorption (LFA) and magnetically modulated microwave absorption spectroscopy (MAMMAS). Measurements were carried out on sintered polycrystalline samples of Fe 3O 4, in the 77–300 K temperature range. LFA refers to the microwave absorption around the zero DC field range (−1000< H DC
ISSN:0304-8853
DOI:10.1016/j.jmmm.2007.03.080