Structural and magnetic characterization of Fe3O4/Mn3O4 superlattices

G. Chern, Lance Horng, M. Z. Lin, S. M. Li, D. S. Lee, T. Y. Hou, M. F. Tai, Te Ho Wu

Research output: Contribution to journalConference article

11 Citations (Scopus)

Abstract

High-quality ferrimagnetic superlattices Fe3O4/Mn3O4 were grown on MgO(0 0 1) substrates by molecular beam epitaxy. The modulation coherency and interface sharpness are characterized by reflection high-energy electron diffraction and X-ray diffraction. Magnetization as a function of the applied field (50 kOe) and temperature (20-300 K) was measured. The magnetic response shows strong dependence on the modulation wavelength. A combined single magnetic transition temperature is predicted to be approximately 600 K for samples with modulation wavelength <43 angstroms. An abrupt decrease of the magnetization is found below 50 K for some superlattices. This feature may be induced by the anisotropic energy related to the tetragonal symmetry of Mn3O4.

Original languageEnglish
Pages (from-to)138-141
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Volume209
Issue number1-3
DOIs
Publication statusPublished - 2000 Jan 1
EventProceedings of the 1999 International Symposium on Advanced Magnetic Technologies (ISAMT'99) - Taipei, Taiwan
Duration: 1999 May 241999 May 25

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Superlattices
superlattices
Modulation
modulation
Magnetization
Wavelength
magnetization
Reflection high energy electron diffraction
sharpness
Molecular beam epitaxy
wavelengths
high energy electrons
Superconducting transition temperature
molecular beam epitaxy
electron diffraction
transition temperature
X ray diffraction
symmetry
Substrates
diffraction

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Chern, G. ; Horng, Lance ; Lin, M. Z. ; Li, S. M. ; Lee, D. S. ; Hou, T. Y. ; Tai, M. F. ; Wu, Te Ho. / Structural and magnetic characterization of Fe3O4/Mn3O4 superlattices. In: Journal of Magnetism and Magnetic Materials. 2000 ; Vol. 209, No. 1-3. pp. 138-141.
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Structural and magnetic characterization of Fe3O4/Mn3O4 superlattices. / Chern, G.; Horng, Lance; Lin, M. Z.; Li, S. M.; Lee, D. S.; Hou, T. Y.; Tai, M. F.; Wu, Te Ho.

In: Journal of Magnetism and Magnetic Materials, Vol. 209, No. 1-3, 01.01.2000, p. 138-141.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Structural and magnetic characterization of Fe3O4/Mn3O4 superlattices

AU - Chern, G.

AU - Horng, Lance

AU - Lin, M. Z.

AU - Li, S. M.

AU - Lee, D. S.

AU - Hou, T. Y.

AU - Tai, M. F.

AU - Wu, Te Ho

PY - 2000/1/1

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N2 - High-quality ferrimagnetic superlattices Fe3O4/Mn3O4 were grown on MgO(0 0 1) substrates by molecular beam epitaxy. The modulation coherency and interface sharpness are characterized by reflection high-energy electron diffraction and X-ray diffraction. Magnetization as a function of the applied field (50 kOe) and temperature (20-300 K) was measured. The magnetic response shows strong dependence on the modulation wavelength. A combined single magnetic transition temperature is predicted to be approximately 600 K for samples with modulation wavelength <43 angstroms. An abrupt decrease of the magnetization is found below 50 K for some superlattices. This feature may be induced by the anisotropic energy related to the tetragonal symmetry of Mn3O4.

AB - High-quality ferrimagnetic superlattices Fe3O4/Mn3O4 were grown on MgO(0 0 1) substrates by molecular beam epitaxy. The modulation coherency and interface sharpness are characterized by reflection high-energy electron diffraction and X-ray diffraction. Magnetization as a function of the applied field (50 kOe) and temperature (20-300 K) was measured. The magnetic response shows strong dependence on the modulation wavelength. A combined single magnetic transition temperature is predicted to be approximately 600 K for samples with modulation wavelength <43 angstroms. An abrupt decrease of the magnetization is found below 50 K for some superlattices. This feature may be induced by the anisotropic energy related to the tetragonal symmetry of Mn3O4.

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