by Pilar Prieto, Juan de la Figuera, Laura Martín-García, José Emilio Prieto and José F. Marco
Abstract:
Highly oriented magnetite thin films showing well-defined fourfold in-plane magnetic anisotropy have been grown on TiN buffered Si(001) substrates by ion beam sputtering assisted by a second ion beam containing a controlled mixture of Ar+ and O2+ ions. The structure and composition of stoichiometric Fe3O4 and non-stoichiometric Fe3−δO4 magnetite thin films have been characterized by X-ray diffraction, Rutherford backscattering spectroscopy and Mössbauer spectroscopy. Magneto-optical Kerr effect measurements show that the maxima of the remanence and coercivity of all these films lie along the Si[010] and [100] directions. The introduction of Fe vacancies in magnetite does not alter the well-defined fourfold in-plane anisotropy but induces a decrease of the coercive field as the number of vacancies increases. Furthermore, the results indicate that a 5 nm TiN thick buffer layer is enough to maintain the Fe3O4[100]/TiN[100]/Si[100] epitaxial relationship.
Reference:
Pilar Prieto, Juan de la Figuera, Laura Martín-García, José Emilio Prieto and José F. Marco, “Fourfold in-plane magnetic anisotropy of magnetite thin films grown on TiN buffered Si(001) by ion-assisted sputtering”, Journal of Materials Chemistry C, vol. 4, no. 32, pp. 7632–7639.
Bibtex Entry:
@article{prieto_fourfold_2016,
title = {Fourfold in-plane magnetic anisotropy of magnetite thin films grown on {TiN} buffered {Si}(001) by ion-assisted sputtering},
volume = {4},
issn = {2050-7534},
url = {http://pubs.rsc.org/en/content/articlelanding/2016/tc/c6tc02152b},
doi = {10.1039/C6TC02152B},
abstract = {Highly oriented magnetite thin films showing well-defined fourfold in-plane magnetic anisotropy have been grown on TiN buffered Si(001) substrates by ion beam sputtering assisted by a second ion beam containing a controlled mixture of Ar+ and O2+ ions. The structure and composition of stoichiometric Fe3O4 and non-stoichiometric Fe3−δO4 magnetite thin films have been characterized by X-ray diffraction, Rutherford backscattering spectroscopy and Mössbauer spectroscopy. Magneto-optical Kerr effect measurements show that the maxima of the remanence and coercivity of all these films lie along the Si[010] and [100] directions. The introduction of Fe vacancies in magnetite does not alter the well-defined fourfold in-plane anisotropy but induces a decrease of the coercive field as the number of vacancies increases. Furthermore, the results indicate that a 5 nm TiN thick buffer layer is enough to maintain the Fe3O4[100]/TiN[100]/Si[100] epitaxial relationship.},
language = {en},
number = {32},
urldate = {2017-11-03},
journal = {Journal of Materials Chemistry C},
author = {Prieto, Pilar and Figuera, Juan de la and Martín-García, Laura and Prieto, José Emilio and Marco, José F.},
month = aug,
year = {2016},
pages = {7632--7639},
file = {Full Text PDF:E:\cmam_papers\files\1519\Prieto et al. - 2016 - Fourfold in-plane magnetic anisotropy of magnetite.pdf:application/pdf;Full Text PDF:E:\Usuarios\Administrator\Zotero\storage\Y53QQ2S8\Prieto et al. - 2016 - Fourfold in-plane magnetic anisotropy of magnetite.pdf:application/pdf;Snapshot:E:\cmam_papers\files\1522\C6TC02152B.html:text/html;Snapshot:E:\Usuarios\Administrator\Zotero\storage\7M3CI3XF\C6TC02152B.html:text/html},
}