Hybrid Fe3O4 /GaAs (100) structure for spintronics

Y.X. Lu; J.S. Claydon; E. Ahmad; Y.B. Xu; M. Ali; B.J. Hickey; S.M. Thompson; J.A.D. Matthew; K. Wilson

doi:10.1063/1.1857432

Hybrid Fe₃O₄ /GaAs (100) structure for spintronics

Y.X. Lu, J.S. Claydon, E. Ahmad, Y.B. Xu, M. Ali, B.J. Hickey, S.M. Thompson, J.A.D. Matthew, K. Wilson

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

Abstract

Fe₃O₄ GaAs hybrid structures have been studied using reflection high-energy electron diffraction (RHEED), x-ray photoelectron spectroscopy (XPS), x-ray magnetic circular dichroism (XMCD), and low-temperature vibrating-sample magnetometry (VSM). The samples were prepared by oxidizing epitaxial Fe thin films in a partial pressure of 5× 10^-5 mbar of oxygen at 500 K for 180 s. Clear RHEED patterns were observed, suggesting the epitaxial growth of Fe oxides with a cubic structure. The XPS spectra show that the oxides were Fe₃O₄ rather than γ- Fe₂O₃, as there were no shake-up satellites between the two Fe 2p peaks. This was further confirmed by the XMCD measurements, which show ferromagnetic coupling between the Fe cations, with no evidence of intermixing at the interface. The VSM measurements show that the films have a magnetic uniaxial anisotropy and a "quick" saturation property, with the easy axes along the [011] direction. This detailed study offers further insight into the structure, interface, and magnetic properties of this hybrid Fe₃O₄ GaAs (100) structure as a promising system for spintronic application.

Original language	English
Article number	10C313
Number of pages	4
Journal	Journal of Applied Physics
Volume	97
Early online date	4 May 2005
DOIs	https://doi.org/10.1063/1.1857432
Publication status	Published - 15 May 2005

Bibliographical note

Copyright © 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Hybrid Fe3O4∕GaAs(100) structure for spintronics
Journal of Applied Physics 97, 10C313 (2005) and may be found at https://doi.org/10.1063/1.1857432

Access to Document

10.1063/1.1857432

Hybrid Fe3O4∕GaAs(100) structure for spintronics
Copyright © 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Hybrid Fe3O4∕GaAs(100) structure for spintronics Journal of Applied Physics 97, 10C313 (2005) and may be found at https://doi.org/10.1063/1.1857432
Final published version, 611 KB

Cite this

@article{81bb672cf4f54b47bd0cbe83f22e9e71,

title = "Hybrid Fe3O4 /GaAs (100) structure for spintronics",

abstract = "Fe3O4 GaAs hybrid structures have been studied using reflection high-energy electron diffraction (RHEED), x-ray photoelectron spectroscopy (XPS), x-ray magnetic circular dichroism (XMCD), and low-temperature vibrating-sample magnetometry (VSM). The samples were prepared by oxidizing epitaxial Fe thin films in a partial pressure of 5× 10-5 mbar of oxygen at 500 K for 180 s. Clear RHEED patterns were observed, suggesting the epitaxial growth of Fe oxides with a cubic structure. The XPS spectra show that the oxides were Fe3O4 rather than γ- Fe2O3, as there were no shake-up satellites between the two Fe 2p peaks. This was further confirmed by the XMCD measurements, which show ferromagnetic coupling between the Fe cations, with no evidence of intermixing at the interface. The VSM measurements show that the films have a magnetic uniaxial anisotropy and a {"}quick{"} saturation property, with the easy axes along the [011] direction. This detailed study offers further insight into the structure, interface, and magnetic properties of this hybrid Fe3O4 GaAs (100) structure as a promising system for spintronic application.",

author = "Y.X. Lu and J.S. Claydon and E. Ahmad and Y.B. Xu and M. Ali and B.J. Hickey and S.M. Thompson and J.A.D. Matthew and K. Wilson",

note = "Copyright {\textcopyright} 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Hybrid Fe3O4∕GaAs(100) structure for spintronics Journal of Applied Physics 97, 10C313 (2005) and may be found at https://doi.org/10.1063/1.1857432",

year = "2005",

month = may,

day = "15",

doi = "10.1063/1.1857432",

language = "English",

volume = "97",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics Publising LLC",

}

TY - JOUR

T1 - Hybrid Fe3O4 /GaAs (100) structure for spintronics

AU - Lu, Y.X.

AU - Claydon, J.S.

AU - Ahmad, E.

AU - Xu, Y.B.

AU - Ali, M.

AU - Hickey, B.J.

AU - Thompson, S.M.

AU - Matthew, J.A.D.

AU - Wilson, K.

N1 - Copyright © 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Hybrid Fe3O4∕GaAs(100) structure for spintronics Journal of Applied Physics 97, 10C313 (2005) and may be found at https://doi.org/10.1063/1.1857432

PY - 2005/5/15

Y1 - 2005/5/15

N2 - Fe3O4 GaAs hybrid structures have been studied using reflection high-energy electron diffraction (RHEED), x-ray photoelectron spectroscopy (XPS), x-ray magnetic circular dichroism (XMCD), and low-temperature vibrating-sample magnetometry (VSM). The samples were prepared by oxidizing epitaxial Fe thin films in a partial pressure of 5× 10-5 mbar of oxygen at 500 K for 180 s. Clear RHEED patterns were observed, suggesting the epitaxial growth of Fe oxides with a cubic structure. The XPS spectra show that the oxides were Fe3O4 rather than γ- Fe2O3, as there were no shake-up satellites between the two Fe 2p peaks. This was further confirmed by the XMCD measurements, which show ferromagnetic coupling between the Fe cations, with no evidence of intermixing at the interface. The VSM measurements show that the films have a magnetic uniaxial anisotropy and a "quick" saturation property, with the easy axes along the [011] direction. This detailed study offers further insight into the structure, interface, and magnetic properties of this hybrid Fe3O4 GaAs (100) structure as a promising system for spintronic application.

AB - Fe3O4 GaAs hybrid structures have been studied using reflection high-energy electron diffraction (RHEED), x-ray photoelectron spectroscopy (XPS), x-ray magnetic circular dichroism (XMCD), and low-temperature vibrating-sample magnetometry (VSM). The samples were prepared by oxidizing epitaxial Fe thin films in a partial pressure of 5× 10-5 mbar of oxygen at 500 K for 180 s. Clear RHEED patterns were observed, suggesting the epitaxial growth of Fe oxides with a cubic structure. The XPS spectra show that the oxides were Fe3O4 rather than γ- Fe2O3, as there were no shake-up satellites between the two Fe 2p peaks. This was further confirmed by the XMCD measurements, which show ferromagnetic coupling between the Fe cations, with no evidence of intermixing at the interface. The VSM measurements show that the films have a magnetic uniaxial anisotropy and a "quick" saturation property, with the easy axes along the [011] direction. This detailed study offers further insight into the structure, interface, and magnetic properties of this hybrid Fe3O4 GaAs (100) structure as a promising system for spintronic application.

UR - http://www.scopus.com/inward/record.url?scp=20944434203&partnerID=8YFLogxK

UR - http://scitation.aip.org/content/aip/journal/jap/97/10/10.1063/1.1857432

U2 - 10.1063/1.1857432

DO - 10.1063/1.1857432

M3 - Article

AN - SCOPUS:20944434203

SN - 0021-8979

VL - 97

JO - Journal of Applied Physics

JF - Journal of Applied Physics

M1 - 10C313

ER -

Hybrid Fe₃O₄ /GaAs (100) structure for spintronics

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this