Magnetic and transport properties of epitaxial stepped Fe3O4(100) thin films

Han Chun Wu; Askar Syrlybekov; Ozhet Mauit; Anas Mouti; C. Coileáin; Mourad Abid; Mohamed Abid; Igor V. Shvets

doi:10.1063/1.4897001

Magnetic and transport properties of epitaxial stepped Fe₃O₄(100) thin films

Han Chun Wu^*, Askar Syrlybekov, Ozhet Mauit, Anas Mouti, C. Coileáin, Mourad Abid, Mohamed Abid, Igor V. Shvets

^*Corresponding author for this work

School of Physics

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

11 Citations (Scopus)

Abstract

We investigate the magnetic and transport properties of epitaxial stepped Fe₃O₄ thin films grown with different thicknesses. Magnetization measurements suggest that the steps induce additional anisotropy, which has an easy axis perpendicular to steps and the hard axis along the steps. Separate local transport measurements, with nano-gap contacts along a single step and perpendicular to a single step, suggest the formation of a high density of anti-phase boundaries (APBs) at the step edges are responsible for the step induced anisotropy. Our local transport measurements also indicate that APBs distort the long range charge-ordering of magnetite.

Original language	English
Article number	132408
Journal	Applied Physics Letters
Volume	105
Issue number	13
DOIs	https://doi.org/10.1063/1.4897001
Publication status	Published - 29 Sept 2014

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title = "Magnetic and transport properties of epitaxial stepped Fe3O4(100) thin films",

abstract = "We investigate the magnetic and transport properties of epitaxial stepped Fe3O4 thin films grown with different thicknesses. Magnetization measurements suggest that the steps induce additional anisotropy, which has an easy axis perpendicular to steps and the hard axis along the steps. Separate local transport measurements, with nano-gap contacts along a single step and perpendicular to a single step, suggest the formation of a high density of anti-phase boundaries (APBs) at the step edges are responsible for the step induced anisotropy. Our local transport measurements also indicate that APBs distort the long range charge-ordering of magnetite.",

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AU - Wu, Han Chun

AU - Syrlybekov, Askar

AU - Mauit, Ozhet

AU - Mouti, Anas

AU - Coileáin, C.

AU - Abid, Mourad

AU - Abid, Mohamed

AU - Shvets, Igor V.

PY - 2014/9/29

Y1 - 2014/9/29

N2 - We investigate the magnetic and transport properties of epitaxial stepped Fe3O4 thin films grown with different thicknesses. Magnetization measurements suggest that the steps induce additional anisotropy, which has an easy axis perpendicular to steps and the hard axis along the steps. Separate local transport measurements, with nano-gap contacts along a single step and perpendicular to a single step, suggest the formation of a high density of anti-phase boundaries (APBs) at the step edges are responsible for the step induced anisotropy. Our local transport measurements also indicate that APBs distort the long range charge-ordering of magnetite.

AB - We investigate the magnetic and transport properties of epitaxial stepped Fe3O4 thin films grown with different thicknesses. Magnetization measurements suggest that the steps induce additional anisotropy, which has an easy axis perpendicular to steps and the hard axis along the steps. Separate local transport measurements, with nano-gap contacts along a single step and perpendicular to a single step, suggest the formation of a high density of anti-phase boundaries (APBs) at the step edges are responsible for the step induced anisotropy. Our local transport measurements also indicate that APBs distort the long range charge-ordering of magnetite.

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VL - 105

JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Magnetic and transport properties of epitaxial stepped Fe₃O₄(100) thin films

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