Investigation of the stoichiometry of MBE-grown Fe3O4 layers by magneto-optical Kerr spectroscopy

W.F.J. Fontijn; R.M. Wolf; R. Metselaar; P.J. Zaag, van der

doi:10.1016/S0040-6090(96)08910-9

Investigation of the stoichiometry of MBE-grown Fe3O4 layers by magneto-optical Kerr spectroscopy

W.F.J. Fontijn, R.M. Wolf, R. Metselaar, P.J. Zaag, van der

Materials and Interface Chemistry

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Abstract

The polar Kerr spectra between 0.7 and 4.0 eV of single-crystalline layers of Fe3O4 grownepitaxially on MgAl2O4, SrTiO3 and MgO (100) substrates by meansof oxidic molecular beam epitaxy are compared to the spectrum of a bulk synthetic single crystal of magnetite to asses the stoichiometry of the layers. Model calculations of the magneto-optical spectra of thin layers are used to explain the differences between the spectra of bulk Fe3O 4and thin layers of Fe3O4. The observed differences are attributed to interference effects and oxidation of the surface of the thin layers. The results are compared to magnetisation and Verwey transition data.

Original language	English
Pages (from-to)	270-276
Number of pages	6
Journal	Thin Solid Films
Volume	292
Issue number	1-2
DOIs	https://doi.org/10.1016/S0040-6090(96)08910-9
Publication status	Published - 1997

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title = "Investigation of the stoichiometry of MBE-grown Fe3O4 layers by magneto-optical Kerr spectroscopy",

abstract = "The polar Kerr spectra between 0.7 and 4.0 eV of single-crystalline layers of Fe3O4 grownepitaxially on MgAl2O4, SrTiO3 and MgO (100) substrates by meansof oxidic molecular beam epitaxy are compared to the spectrum of a bulk synthetic single crystal of magnetite to asses the stoichiometry of the layers. Model calculations of the magneto-optical spectra of thin layers are used to explain the differences between the spectra of bulk Fe3O 4and thin layers of Fe3O4. The observed differences are attributed to interference effects and oxidation of the surface of the thin layers. The results are compared to magnetisation and Verwey transition data.",

author = "W.F.J. Fontijn and R.M. Wolf and R. Metselaar and {Zaag, van der}, P.J.",

year = "1997",

doi = "10.1016/S0040-6090(96)08910-9",

language = "English",

volume = "292",

pages = "270--276",

journal = "Thin Solid Films",

issn = "0040-6090",

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T1 - Investigation of the stoichiometry of MBE-grown Fe3O4 layers by magneto-optical Kerr spectroscopy

AU - Fontijn, W.F.J.

AU - Wolf, R.M.

AU - Metselaar, R.

AU - Zaag, van der, P.J.

PY - 1997

Y1 - 1997

N2 - The polar Kerr spectra between 0.7 and 4.0 eV of single-crystalline layers of Fe3O4 grownepitaxially on MgAl2O4, SrTiO3 and MgO (100) substrates by meansof oxidic molecular beam epitaxy are compared to the spectrum of a bulk synthetic single crystal of magnetite to asses the stoichiometry of the layers. Model calculations of the magneto-optical spectra of thin layers are used to explain the differences between the spectra of bulk Fe3O 4and thin layers of Fe3O4. The observed differences are attributed to interference effects and oxidation of the surface of the thin layers. The results are compared to magnetisation and Verwey transition data.

AB - The polar Kerr spectra between 0.7 and 4.0 eV of single-crystalline layers of Fe3O4 grownepitaxially on MgAl2O4, SrTiO3 and MgO (100) substrates by meansof oxidic molecular beam epitaxy are compared to the spectrum of a bulk synthetic single crystal of magnetite to asses the stoichiometry of the layers. Model calculations of the magneto-optical spectra of thin layers are used to explain the differences between the spectra of bulk Fe3O 4and thin layers of Fe3O4. The observed differences are attributed to interference effects and oxidation of the surface of the thin layers. The results are compared to magnetisation and Verwey transition data.

U2 - 10.1016/S0040-6090(96)08910-9

DO - 10.1016/S0040-6090(96)08910-9

M3 - Article

SN - 0040-6090

VL - 292

SP - 270

EP - 276

JO - Thin Solid Films

JF - Thin Solid Films

IS - 1-2

ER -

Investigation of the stoichiometry of MBE-grown Fe3O4 layers by magneto-optical Kerr spectroscopy

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