Interfacial stability of ultrathin films of magnetite Fe3O4 (111) on Al2O3(001) grown by ozone-assisted molecular-beam epitaxy

Hong, Hawoong; Kim, Jongjin; Fang, Xinyue; Hong, Seungbum; Chiang, T. -C.

doi:10.1063/1.4973808

Title: Interfacial stability of ultrathin films of magnetite Fe₃O₄ (111) on Al₂O₃(001) grown by ozone-assisted molecular-beam epitaxy

Abstract

Thin films of iron oxides including magnetite (Fe₃O₄) and hematite (α-Fe₂O₃) have many important applications. Both forms of oxide can occur naturally during film growth by iron deposition under various oxidation environment; an important issue is to understand and control the process resulting in a single-phase film. We have performed in-situ real-time studies using x-ray diffraction of such film growth on sapphire (001) under pure ozone by monitoring the (00L) rod. Stable magnetite growth can be maintained at growth temperatures below 600° C up to a certain critical film thickness, beyond which the growth becomes hematite. The results demonstrate the importance of interfacial interaction in stabilizing the magnetite phase.

Authors:

Hong, Hawoong ^[1]; Kim, Jongjin ^[1]; Fang, Xinyue ^[2];

^[3]; Chiang, T. -C. ^[2]

Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Univ. of Illinois at Urbana-Champaign, IL (United States)
National Univ. in Daejeon (KAIST) (South Korea) Dept. of Materials Science and Engineering; Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division

Publication Date:: Mon Jan 09 00:00:00 EST 2017

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division

OSTI Identifier:: 1395890

Alternate Identifier(s):: OSTI ID: 1361731

Grant/Contract Number:: AC02- 06CH11357; FG02-07ER46383

Resource Type:: Accepted Manuscript

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Volume: 110; Journal Issue: 2; Journal ID: ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Gemstones; X-ray diffraction; Crystal lattices; Minerals; Epitaxy; Diffractometers; Plasma processing; Thin films; Ozone; Optical interference

Citation Formats


                    Hong, Hawoong, Kim, Jongjin, Fang, Xinyue, Hong, Seungbum, and Chiang, T. -C. Interfacial stability of ultrathin films of magnetite Fe3O4 (111) on Al2O3(001) grown by ozone-assisted molecular-beam epitaxy.  United States: N. p., 2017. 
Web.  doi:10.1063/1.4973808.

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                    Hong, Hawoong, Kim, Jongjin, Fang, Xinyue, Hong, Seungbum, & Chiang, T. -C. Interfacial stability of ultrathin films of magnetite Fe3O4 (111) on Al2O3(001) grown by ozone-assisted molecular-beam epitaxy.  United States.  https://doi.org/10.1063/1.4973808

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                    Hong, Hawoong, Kim, Jongjin, Fang, Xinyue, Hong, Seungbum, and Chiang, T. -C. Mon .  
"Interfacial stability of ultrathin films of magnetite Fe3O4 (111) on Al2O3(001) grown by ozone-assisted molecular-beam epitaxy".  United States.  https://doi.org/10.1063/1.4973808.  https://www.osti.gov/servlets/purl/1395890.

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@article{osti_1395890,

  title        = {Interfacial stability of ultrathin films of magnetite Fe3O4 (111) on Al2O3(001) grown by ozone-assisted molecular-beam epitaxy},

  author       = {Hong, Hawoong and Kim, Jongjin and Fang, Xinyue and Hong, Seungbum and Chiang, T. -C.},

  abstractNote = {Thin films of iron oxides including magnetite (Fe3O4) and hematite (α-Fe2O3) have many important applications. Both forms of oxide can occur naturally during film growth by iron deposition under various oxidation environment; an important issue is to understand and control the process resulting in a single-phase film. We have performed in-situ real-time studies using x-ray diffraction of such film growth on sapphire (001) under pure ozone by monitoring the (00L) rod. Stable magnetite growth can be maintained at growth temperatures below 600° C up to a certain critical film thickness, beyond which the growth becomes hematite. The results demonstrate the importance of interfacial interaction in stabilizing the magnetite phase.},

  doi          = {10.1063/1.4973808},

  journal      = {Applied Physics Letters},

  number       = 2,

  volume       = 110,

  place        = {United States},

  year         = {Mon Jan 09 00:00:00 EST 2017},

  month        = {Mon Jan 09 00:00:00 EST 2017}

}

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Works referencing / citing this record:

Dual Lewis site creation for activation of methanol on Fe ₃ O ₄ (111) thin films
journal, January 2020

Xu, Fang; Chen, Wei; Walenta, Constantin A.
Chemical Science, Vol. 11, Issue 9
DOI: 10.1039/c9sc06149e

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Title: Interfacial stability of ultrathin films of magnetite Fe3O4 (111) on Al2O3(001) grown by ozone-assisted molecular-beam epitaxy

Abstract

Citation Formats

Insight into Magnetite’s Redox Catalysis from Observing Surface Morphology during Oxidation journal, June 2013

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New Benchmark for Water Photooxidation by Nanostructured α-Fe 2 O 3 Films journal, December 2006

In situ surface/interface x-ray diffractometer for oxide molecular beam epitaxy journal, January 2016

In situ RHEED and XPS studies of epitaxial thin α-Fe2O3(0001) films on sapphire journal, November 1996

Heteroepitaxial growth of α-Fe2O3, γ-Fe2O3 and Fe3O4 thin films by oxygen-plasma-assisted molecular beam epitaxy journal, April 1997

Oxide Spintronics journal, May 2007

Spin-Polarized Transport across Sharp Antiferromagnetic Boundaries journal, June 2002

Growth of iron oxides on Ag(111) — Reversible Fe2O3/Fe3O4 transformation journal, December 2011

A six-circle diffractometer system for synchrotron X-ray studies of surfaces and thin film growth by molecular beam epitaxy journal, March 2007

Time-resolved reflection surface x-ray diffraction journal, April 2002

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Effect of growth rate on the nucleation of α-Fe2O3 on α-Al2O3(0001) by oxygen-plasma-assisted molecular beam epitaxy journal, July 1999

Synthesis of epitaxial films of Fe3O4 and α-Fe2O3 with various low-index orientations by oxygen-plasma-assisted molecular beam epitaxy journal, March 1997

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Title: Interfacial stability of ultrathin films of magnetite Fe₃O₄ (111) on Al₂O₃(001) grown by ozone-assisted molecular-beam epitaxy

Insight into Magnetite’s Redox Catalysis from Observing Surface Morphology during Oxidation
journal, June 2013

Selective growth and characterization of pure, epitaxial α-Fe2O3(0001) and Fe3O4(001) films by plasma-assisted molecular beam epitaxy
journal, February 1997

Substrate pre-treatment and initial growth: Strategies towards high-quality III-nitride growth on sapphire by molecular beam epitaxy
journal, October 2006

New Benchmark for Water Photooxidation by Nanostructured α-Fe ₂ O ₃ Films
journal, December 2006

In situ surface/interface x-ray diffractometer for oxide molecular beam epitaxy
journal, January 2016

In situ RHEED and XPS studies of epitaxial thin α-Fe2O3(0001) films on sapphire
journal, November 1996

Heteroepitaxial growth of α-Fe2O3, γ-Fe2O3 and Fe3O4 thin films by oxygen-plasma-assisted molecular beam epitaxy
journal, April 1997

Oxide Spintronics
journal, May 2007

Spin-Polarized Transport across Sharp Antiferromagnetic Boundaries
journal, June 2002

Growth of iron oxides on Ag(111) — Reversible Fe2O3/Fe3O4 transformation
journal, December 2011

A six-circle diffractometer system for synchrotron X-ray studies of surfaces and thin film growth by molecular beam epitaxy
journal, March 2007

Time-resolved reflection surface x-ray diffraction
journal, April 2002

Epitaxial growth and properties of thin film oxides
journal, August 2000

Ultrathin oxide films and interfaces for electronics and spintronics
journal, February 2011

Effect of growth rate on the nucleation of α-Fe2O3 on α-Al2O3(0001) by oxygen-plasma-assisted molecular beam epitaxy
journal, July 1999

Synthesis of epitaxial films of Fe3O4 and α-Fe2O3 with various low-index orientations by oxygen-plasma-assisted molecular beam epitaxy
journal, March 1997

Preparation and characterization of (111)‐oriented Fe ₃ O ₄ films deposited on sapphire
journal, October 1989

Dual Lewis site creation for activation of methanol on Fe ₃ O ₄ (111) thin films
journal, January 2020