Magnetic properties of ultrathin Fe3O4 on GaAs(100)

Y X Lu; J S Claydon; Y B Xu; D M Schofield; S M Thompson

doi:10.1063/1.1669242

Magnetic properties of ultrathin Fe3O4 on GaAs(100)

Y X Lu, J S Claydon, Y B Xu, D M Schofield, S M Thompson

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

Abstract

The evolution of magnetic phase and anisotropy of epitaxial half-metallic Fe3O4 ultrathin films on GaAs(100) has been studied using magneto-optical Kerr effect (MOKE) measurements. While no magnetic signal was detected below 1 nm, the film shows a superparamagnetic response at a thickness of around 1.6 nm. Ferromagnetic MOKE loops with strong in-plane anisotropies were observed above 2.0 nm. The films show a magnetic uniaxial anisotropy in a thickness range of about 2.0-6.0 nm with the easy axis along the [0 (1) over bar1] direction. (C) 2004 American Institute of Physics.

Original language	English
Pages (from-to)	7228-7230
Number of pages	3
Journal	Journal of Applied Physics
Volume	95
Issue number	11
DOIs	https://doi.org/10.1063/1.1669242
Publication status	Published - 1 Jun 2004

Keywords

THIN-FILMS
ANISOTROPY
BEHAVIOR
DOMAINS

Access to Document

10.1063/1.1669242

Cite this

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title = "Magnetic properties of ultrathin Fe3O4 on GaAs(100)",

abstract = "The evolution of magnetic phase and anisotropy of epitaxial half-metallic Fe3O4 ultrathin films on GaAs(100) has been studied using magneto-optical Kerr effect (MOKE) measurements. While no magnetic signal was detected below 1 nm, the film shows a superparamagnetic response at a thickness of around 1.6 nm. Ferromagnetic MOKE loops with strong in-plane anisotropies were observed above 2.0 nm. The films show a magnetic uniaxial anisotropy in a thickness range of about 2.0-6.0 nm with the easy axis along the [0 (1) over bar1] direction. (C) 2004 American Institute of Physics.",

keywords = "THIN-FILMS, ANISOTROPY, BEHAVIOR, DOMAINS",

author = "Lu, {Y X} and Claydon, {J S} and Xu, {Y B} and Schofield, {D M} and Thompson, {S M}",

year = "2004",

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doi = "10.1063/1.1669242",

language = "English",

volume = "95",

pages = "7228--7230",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Magnetic properties of ultrathin Fe3O4 on GaAs(100)

AU - Lu, Y X

AU - Claydon, J S

AU - Xu, Y B

AU - Schofield, D M

AU - Thompson, S M

PY - 2004/6/1

Y1 - 2004/6/1

N2 - The evolution of magnetic phase and anisotropy of epitaxial half-metallic Fe3O4 ultrathin films on GaAs(100) has been studied using magneto-optical Kerr effect (MOKE) measurements. While no magnetic signal was detected below 1 nm, the film shows a superparamagnetic response at a thickness of around 1.6 nm. Ferromagnetic MOKE loops with strong in-plane anisotropies were observed above 2.0 nm. The films show a magnetic uniaxial anisotropy in a thickness range of about 2.0-6.0 nm with the easy axis along the [0 (1) over bar1] direction. (C) 2004 American Institute of Physics.

AB - The evolution of magnetic phase and anisotropy of epitaxial half-metallic Fe3O4 ultrathin films on GaAs(100) has been studied using magneto-optical Kerr effect (MOKE) measurements. While no magnetic signal was detected below 1 nm, the film shows a superparamagnetic response at a thickness of around 1.6 nm. Ferromagnetic MOKE loops with strong in-plane anisotropies were observed above 2.0 nm. The films show a magnetic uniaxial anisotropy in a thickness range of about 2.0-6.0 nm with the easy axis along the [0 (1) over bar1] direction. (C) 2004 American Institute of Physics.

KW - THIN-FILMS

KW - ANISOTROPY

KW - BEHAVIOR

KW - DOMAINS

U2 - 10.1063/1.1669242

DO - 10.1063/1.1669242

M3 - Article

SN - 0021-8979

VL - 95

SP - 7228

EP - 7230

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 11

ER -