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 language | English |
|---|---|
| Pages (from-to) | 138-141 |
| Number of pages | 4 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 209 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 2000 Jan 1 |
| Event | Proceedings of the 1999 International Symposium on Advanced Magnetic Technologies (ISAMT'99) - Taipei, Taiwan Duration: 1999 May 24 → 1999 May 25 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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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 journal › Conference 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
Y1 - 2000/1/1
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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U2 - 10.1016/S0304-8853(99)00668-X
DO - 10.1016/S0304-8853(99)00668-X
M3 - Conference article
AN - SCOPUS:0034135270
VL - 209
SP - 138
EP - 141
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
IS - 1-3
ER -