X-ray magnetic circular dichroism study of epitaxial magnetite ultrathin film on MgO(100)

Wenqing Liu

doi:10.1063/1.4916296

X-ray magnetic circular dichroism study of epitaxial magnetite ultrathin film on MgO(100)

Wenqing Liu

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Abstract

The spin and orbital magnetic moments of the Fe3O4 epitaxial ultrathin film synthesized by plasma assisted simultaneous oxidization on MgO(100) have been studied with X-ray magnetic circular dichroism. The ultrathin film retains a rather large total magnetic moment, i.e., (2.73 ± 0.15) μ B/f.u., which is ∼70% of that for the bulk-like Fe3O4. A significant unquenched orbital moment up to 0.54 ± 0.05 μ B/f.u. was observed, which could come from the symmetry breaking at the Fe3O4/MgO interface. Such sizable orbital moment will add capacities to the Fe3O4-based spintronics devices in the magnetization reversal by the electric field.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	Journal of Applied Physics
Volume	117
DOIs	https://doi.org/10.1063/1.4916296
Publication status	Published - 26 Mar 2015

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10.1063/1.4916296

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http://scitation.aip.org/content/aip/journal/jap/117/17/10.1063/1.4916296

Cite this

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title = "X-ray magnetic circular dichroism study of epitaxial magnetite ultrathin film on MgO(100)",

abstract = "The spin and orbital magnetic moments of the Fe3O4 epitaxial ultrathin film synthesized by plasma assisted simultaneous oxidization on MgO(100) have been studied with X-ray magnetic circular dichroism. The ultrathin film retains a rather large total magnetic moment, i.e., (2.73 ± 0.15) μ B/f.u., which is ∼70% of that for the bulk-like Fe3O4. A significant unquenched orbital moment up to 0.54 ± 0.05 μ B/f.u. was observed, which could come from the symmetry breaking at the Fe3O4/MgO interface. Such sizable orbital moment will add capacities to the Fe3O4-based spintronics devices in the magnetization reversal by the electric field.",

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T1 - X-ray magnetic circular dichroism study of epitaxial magnetite ultrathin film on MgO(100)

AU - Liu, Wenqing

PY - 2015/3/26

Y1 - 2015/3/26

N2 - The spin and orbital magnetic moments of the Fe3O4 epitaxial ultrathin film synthesized by plasma assisted simultaneous oxidization on MgO(100) have been studied with X-ray magnetic circular dichroism. The ultrathin film retains a rather large total magnetic moment, i.e., (2.73 ± 0.15) μ B/f.u., which is ∼70% of that for the bulk-like Fe3O4. A significant unquenched orbital moment up to 0.54 ± 0.05 μ B/f.u. was observed, which could come from the symmetry breaking at the Fe3O4/MgO interface. Such sizable orbital moment will add capacities to the Fe3O4-based spintronics devices in the magnetization reversal by the electric field.

AB - The spin and orbital magnetic moments of the Fe3O4 epitaxial ultrathin film synthesized by plasma assisted simultaneous oxidization on MgO(100) have been studied with X-ray magnetic circular dichroism. The ultrathin film retains a rather large total magnetic moment, i.e., (2.73 ± 0.15) μ B/f.u., which is ∼70% of that for the bulk-like Fe3O4. A significant unquenched orbital moment up to 0.54 ± 0.05 μ B/f.u. was observed, which could come from the symmetry breaking at the Fe3O4/MgO interface. Such sizable orbital moment will add capacities to the Fe3O4-based spintronics devices in the magnetization reversal by the electric field.

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DO - 10.1063/1.4916296

M3 - Letter

SN - 0021-8979

VL - 117

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EP - 5

JO - Journal of Applied Physics

JF - Journal of Applied Physics

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