Phase-controlled epitaxial growth of iron oxide thin films on MgO(001) and LaAlO 3(001) substrates

Zhiguang Wang; Ravindranath Viswan; Bolin Hu; V. G. Harris; Jie Fang Li; D. Viehland

doi:10.1002/pssr.201105458

Phase-controlled epitaxial growth of iron oxide thin films on MgO(001) and LaAlO ₃(001) substrates

Zhiguang Wang
, Ravindranath Viswan
, Bolin Hu
, V. G. Harris
, Jie Fang Li
, D. Viehland

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

2 Scopus citations

Abstract

We have deposited epitaxial iron oxide thin films on MgO(001) and LaAlO ₃(LAO)(001) substrates, resulting in different phase stabilities. Atomic force microscopy images revealed a smooth surface. Detailed X-ray diffraction (XRD) measurements were performed to confirm the epitaxial growth and to analyze the atomic growth configuration. We found that (00l) oriented γ-Fe ₂O ₃ was the stable phase on MgO(001) substrates, whereas (1 1̄02) oriented α-Fe ₂O ₃ was stable on LAO(001). Magnetic hysteresis loop measurements revealed typical ferrimagnetic behavior for γ-Fe ₂O ₃ on MgO, whereas the magnetization of α-Fe ₂O ₃ on LAO was relatively small and consistent with an antiferromagnetic order.

Original language	English
Pages (from-to)	89-91
Number of pages	3
Journal	Physica Status Solidi - Rapid Research Letters
Volume	6
Issue number	2
DOIs	https://doi.org/10.1002/pssr.201105458
State	Published - Feb 2012
Externally published	Yes

Keywords

Epitaxy
Iron oxides
Magnetism
Phase stability
Pulsed laser deposition

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10.1002/pssr.201105458

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title = "Phase-controlled epitaxial growth of iron oxide thin films on MgO(001) and LaAlO 3(001) substrates",

abstract = "We have deposited epitaxial iron oxide thin films on MgO(001) and LaAlO 3(LAO)(001) substrates, resulting in different phase stabilities. Atomic force microscopy images revealed a smooth surface. Detailed X-ray diffraction (XRD) measurements were performed to confirm the epitaxial growth and to analyze the atomic growth configuration. We found that (00l) oriented γ-Fe 2O 3 was the stable phase on MgO(001) substrates, whereas (1 {\=1}02) oriented α-Fe 2O 3 was stable on LAO(001). Magnetic hysteresis loop measurements revealed typical ferrimagnetic behavior for γ-Fe 2O 3 on MgO, whereas the magnetization of α-Fe 2O 3 on LAO was relatively small and consistent with an antiferromagnetic order.",

keywords = "Epitaxy, Iron oxides, Magnetism, Phase stability, Pulsed laser deposition",

author = "Zhiguang Wang and Ravindranath Viswan and Bolin Hu and Harris, \{V. G.\} and Li, \{Jie Fang\} and D. Viehland",

year = "2012",

month = feb,

doi = "10.1002/pssr.201105458",

language = "英语",

volume = "6",

pages = "89--91",

journal = "Physica Status Solidi - Rapid Research Letters",

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T1 - Phase-controlled epitaxial growth of iron oxide thin films on MgO(001) and LaAlO 3(001) substrates

AU - Wang, Zhiguang

AU - Viswan, Ravindranath

AU - Hu, Bolin

AU - Harris, V. G.

AU - Li, Jie Fang

AU - Viehland, D.

PY - 2012/2

Y1 - 2012/2

N2 - We have deposited epitaxial iron oxide thin films on MgO(001) and LaAlO 3(LAO)(001) substrates, resulting in different phase stabilities. Atomic force microscopy images revealed a smooth surface. Detailed X-ray diffraction (XRD) measurements were performed to confirm the epitaxial growth and to analyze the atomic growth configuration. We found that (00l) oriented γ-Fe 2O 3 was the stable phase on MgO(001) substrates, whereas (1 1̄02) oriented α-Fe 2O 3 was stable on LAO(001). Magnetic hysteresis loop measurements revealed typical ferrimagnetic behavior for γ-Fe 2O 3 on MgO, whereas the magnetization of α-Fe 2O 3 on LAO was relatively small and consistent with an antiferromagnetic order.

AB - We have deposited epitaxial iron oxide thin films on MgO(001) and LaAlO 3(LAO)(001) substrates, resulting in different phase stabilities. Atomic force microscopy images revealed a smooth surface. Detailed X-ray diffraction (XRD) measurements were performed to confirm the epitaxial growth and to analyze the atomic growth configuration. We found that (00l) oriented γ-Fe 2O 3 was the stable phase on MgO(001) substrates, whereas (1 1̄02) oriented α-Fe 2O 3 was stable on LAO(001). Magnetic hysteresis loop measurements revealed typical ferrimagnetic behavior for γ-Fe 2O 3 on MgO, whereas the magnetization of α-Fe 2O 3 on LAO was relatively small and consistent with an antiferromagnetic order.

KW - Epitaxy

KW - Iron oxides

KW - Magnetism

KW - Phase stability

KW - Pulsed laser deposition

UR - https://www.scopus.com/pages/publications/84863014984

U2 - 10.1002/pssr.201105458

DO - 10.1002/pssr.201105458

M3 - 文章

AN - SCOPUS:84863014984

SN - 1862-6254

VL - 6

SP - 89

EP - 91

JO - Physica Status Solidi - Rapid Research Letters

JF - Physica Status Solidi - Rapid Research Letters

IS - 2

ER -

Phase-controlled epitaxial growth of iron oxide thin films on MgO(001) and LaAlO ₃(001) substrates

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Keywords

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