Magnetic and transport properties of epitaxial thin film MgFe2O4 grown on MgO (100) by molecular beam epitaxy

Han Chun Wu; Ozhet Mauit; Cormac Coileáin; Askar Syrlybekov; Abbas Khalid; Anas Mouti; Mourad Abid; Hong Zhou Zhang; Mohamed Abid; Igor V. Shvets

doi:10.1038/srep07012

Magnetic and transport properties of epitaxial thin film MgFe₂O₄ grown on MgO (100) by molecular beam epitaxy

Han Chun Wu^*, Ozhet Mauit, Cormac Coileáin, Askar Syrlybekov, Abbas Khalid, Anas Mouti, Mourad Abid, Hong Zhou Zhang, Mohamed Abid, Igor V. Shvets

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article › peer-review

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Abstract

Magnesium ferrite is a very important magnetic material due to its interesting magnetic and electrical properties and its chemical and thermal stability. Here we report on the magnetic and transport properties of epitaxial MgFe₂O₄ thin films grown on MgO (001) by molecular beam epitaxy. The structural properties and chemical composition of the MgFe₂O₄ films were characterized by X-Ray diffraction and X-Ray photoelectron spectroscopy, respectively. The nonsaturation of the magnetization in high magnetic fields observed for M (H) measurements and the linear negative magnetoresistance (MR) curves indicate the presence of anti-phase boundaries (APBs) in MgFe₂O₄. The presence of APBs was confirmed by transmission electron microscopy. Moreover, post annealing decreases the resistance and enhances the MR of the film, suggesting migration of the APBs. Our results may be valuable for the application of MgFe₂O₄ in spintronics.

Original language	English
Article number	7012
Journal	Scientific Reports
Volume	4
DOIs	https://doi.org/10.1038/srep07012
Publication status	Published - 12 Nov 2014

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title = "Magnetic and transport properties of epitaxial thin film MgFe2O4 grown on MgO (100) by molecular beam epitaxy",

abstract = "Magnesium ferrite is a very important magnetic material due to its interesting magnetic and electrical properties and its chemical and thermal stability. Here we report on the magnetic and transport properties of epitaxial MgFe2O4 thin films grown on MgO (001) by molecular beam epitaxy. The structural properties and chemical composition of the MgFe2O4 films were characterized by X-Ray diffraction and X-Ray photoelectron spectroscopy, respectively. The nonsaturation of the magnetization in high magnetic fields observed for M (H) measurements and the linear negative magnetoresistance (MR) curves indicate the presence of anti-phase boundaries (APBs) in MgFe2O4. The presence of APBs was confirmed by transmission electron microscopy. Moreover, post annealing decreases the resistance and enhances the MR of the film, suggesting migration of the APBs. Our results may be valuable for the application of MgFe2O4 in spintronics.",

author = "Wu, {Han Chun} and Ozhet Mauit and Cormac Coile{\'a}in and Askar Syrlybekov and Abbas Khalid and Anas Mouti and Mourad Abid and Zhang, {Hong Zhou} and Mohamed Abid and Shvets, {Igor V.}",

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T1 - Magnetic and transport properties of epitaxial thin film MgFe2O4 grown on MgO (100) by molecular beam epitaxy

AU - Wu, Han Chun

AU - Mauit, Ozhet

AU - Coileáin, Cormac

AU - Syrlybekov, Askar

AU - Khalid, Abbas

AU - Mouti, Anas

AU - Abid, Mourad

AU - Zhang, Hong Zhou

AU - Abid, Mohamed

AU - Shvets, Igor V.

PY - 2014/11/12

Y1 - 2014/11/12

N2 - Magnesium ferrite is a very important magnetic material due to its interesting magnetic and electrical properties and its chemical and thermal stability. Here we report on the magnetic and transport properties of epitaxial MgFe2O4 thin films grown on MgO (001) by molecular beam epitaxy. The structural properties and chemical composition of the MgFe2O4 films were characterized by X-Ray diffraction and X-Ray photoelectron spectroscopy, respectively. The nonsaturation of the magnetization in high magnetic fields observed for M (H) measurements and the linear negative magnetoresistance (MR) curves indicate the presence of anti-phase boundaries (APBs) in MgFe2O4. The presence of APBs was confirmed by transmission electron microscopy. Moreover, post annealing decreases the resistance and enhances the MR of the film, suggesting migration of the APBs. Our results may be valuable for the application of MgFe2O4 in spintronics.

AB - Magnesium ferrite is a very important magnetic material due to its interesting magnetic and electrical properties and its chemical and thermal stability. Here we report on the magnetic and transport properties of epitaxial MgFe2O4 thin films grown on MgO (001) by molecular beam epitaxy. The structural properties and chemical composition of the MgFe2O4 films were characterized by X-Ray diffraction and X-Ray photoelectron spectroscopy, respectively. The nonsaturation of the magnetization in high magnetic fields observed for M (H) measurements and the linear negative magnetoresistance (MR) curves indicate the presence of anti-phase boundaries (APBs) in MgFe2O4. The presence of APBs was confirmed by transmission electron microscopy. Moreover, post annealing decreases the resistance and enhances the MR of the film, suggesting migration of the APBs. Our results may be valuable for the application of MgFe2O4 in spintronics.

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U2 - 10.1038/srep07012

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VL - 4

JO - Scientific Reports

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M1 - 7012

ER -

Magnetic and transport properties of epitaxial thin film MgFe₂O₄ grown on MgO (100) by molecular beam epitaxy

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