Abstract
The electrical, crystallographic, and magnetic properties of ultrathin magnetite (Fe3O4) have been studied in detail, by employing superlattice structures of Fe3O4/MgFe2O4 and Fe3O4/MgO on a variety of substrates. By careful analysis of their properties, the influence of substrate stoichiometry, Fe3O4 thin film thickness, antiphase boundaries on the magnetic properties can be separated. In particular, the controversial enhanced magnetic moment in ultrathin films (<5 nm) was confirmed to be related to the substrate stoichiometry, specifically the migration of oxygen vacancies into the Fe3O4 thin films. The multilayer concept can be employed with many other such systems and offers methods of tuning the properties of thin magnetic oxides.
| Original language | English |
|---|---|
| Article number | 125128 |
| Journal | Physical Review B |
| Volume | 95 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Mar 23 2017 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Ultrathin magnetite in Fe3 O4/MgO superlattices : Investigating the enhanced thin film magnetic moment. / Mauit, Ozhet; Fleischer, Karsten; Coileáin, Cormac; Bulfin, Brendan; Fox, Daniel S.; Smith, Christopher M.; Mullarkey, Daragh; Sugurbekova, Gulnar; Zhang, Hongzhou; Shvets, Igor V.
In: Physical Review B, Vol. 95, No. 12, 125128, 23.03.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ultrathin magnetite in Fe3 O4/MgO superlattices
T2 - Investigating the enhanced thin film magnetic moment
AU - Mauit, Ozhet
AU - Fleischer, Karsten
AU - Coileáin, Cormac
AU - Bulfin, Brendan
AU - Fox, Daniel S.
AU - Smith, Christopher M.
AU - Mullarkey, Daragh
AU - Sugurbekova, Gulnar
AU - Zhang, Hongzhou
AU - Shvets, Igor V.
PY - 2017/3/23
Y1 - 2017/3/23
N2 - The electrical, crystallographic, and magnetic properties of ultrathin magnetite (Fe3O4) have been studied in detail, by employing superlattice structures of Fe3O4/MgFe2O4 and Fe3O4/MgO on a variety of substrates. By careful analysis of their properties, the influence of substrate stoichiometry, Fe3O4 thin film thickness, antiphase boundaries on the magnetic properties can be separated. In particular, the controversial enhanced magnetic moment in ultrathin films (<5 nm) was confirmed to be related to the substrate stoichiometry, specifically the migration of oxygen vacancies into the Fe3O4 thin films. The multilayer concept can be employed with many other such systems and offers methods of tuning the properties of thin magnetic oxides.
AB - The electrical, crystallographic, and magnetic properties of ultrathin magnetite (Fe3O4) have been studied in detail, by employing superlattice structures of Fe3O4/MgFe2O4 and Fe3O4/MgO on a variety of substrates. By careful analysis of their properties, the influence of substrate stoichiometry, Fe3O4 thin film thickness, antiphase boundaries on the magnetic properties can be separated. In particular, the controversial enhanced magnetic moment in ultrathin films (<5 nm) was confirmed to be related to the substrate stoichiometry, specifically the migration of oxygen vacancies into the Fe3O4 thin films. The multilayer concept can be employed with many other such systems and offers methods of tuning the properties of thin magnetic oxides.
UR - http://www.scopus.com/inward/record.url?scp=85016302993&partnerID=8YFLogxK
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U2 - 10.1103/PhysRevB.95.125128
DO - 10.1103/PhysRevB.95.125128
M3 - Article
VL - 95
JO - Physical Review B
JF - Physical Review B
SN - 1098-0121
IS - 12
M1 - 125128
ER -