Magnetic behavior and role of the antiphase boundaries in Fe3O4 epitaxial films sputtered on MgO (001)

被引：0
|
作者：
J.F. Bobo
D. Basso
E. Snoeck
C. Gatel
D. Hrabovsky
J.L. Gauffier
L. Ressier
R. Mamy
S. Visnovsky
J. Hamrle
J. Teillet
A.R. Fert
机构：
[1] Laboratoire de Physique de la Matière Condensée,
[2] 135 avenue de Rangueil,undefined
[3] 31077 Toulouse Cedex 4,undefined
[4] France,undefined
[5] CEMES CNRS,undefined
[6] 29 rue Jeanne Marvig,undefined
[7] 31055 Toulouse Cedex 4,undefined
[8] France,undefined
[9] Groupe de Physique des Matériaux,undefined
[10] Faculté des Sciences de Rouen,undefined
[11] 76821 Mont Saint Aignan Cedex,undefined
[12] France,undefined
[13] Faculty of Mathematics and Physics,undefined
[14] Charles University,undefined
[15] Ke Karlovu 3,undefined
[16] 121 16 Prague 2,undefined
[17] Czech Republic,undefined
来源：
The European Physical Journal B - Condensed Matter and Complex Systems | 2001年 / 24卷
关键词：
PACS. 75.70.-i Magnetic properties of thin films, surfaces, and interfaces – 75.60.-d Domain effects, magnetization curves, and hysteresis – 78.20.Ls Magnetooptical effects;
D O I：
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中图分类号：
学科分类号：
摘要：
Magnetite Fe3O4 films were grown on single crystal MgO (001) substrates using facing target sputtering technique. Conversion Electron Mössbauer Spectroscopy and magneto optical polar Kerr spectra have confirmed the stoichiometric repartition of Fe cations corresponding to the inverse spinel structure and the electronic structure characteristic of bulk Fe3O4. Hysteresis loops carried out at room temperature show that, in a 1 T applied magnetic field, only 60% of the saturation magnetization is detected. This behavior is discussed in correlation to the antiphase boundaries (APBs) observed by electron microscopy. Magnetic force microscopy studies show that magnetic domains are larger than the mean distance between APBs.
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页码：43 / 49
页数：6
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