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Formation of Ferromagnetic/Ferroelectric Superlattices by a Laser MBE and Their Electric & Magnetic Properties

Published online by Cambridge University Press:  10 February 2011

Hitoshi Tabata ,
Kenji Ueda  and
Tomoji Kawai
Hitoshi Tabata
Affiliation:
ISIR-Sanken, Osaka University, 8–1 Mihogaoka, Ibaraki, Osaka 567, Japan, [email protected]
Kenji Ueda
Affiliation:
ISIR-Sanken, Osaka University, 8–1 Mihogaoka, Ibaraki, Osaka 567, Japan, [email protected]
Tomoji Kawai
Affiliation:
ISIR-Sanken, Osaka University, 8–1 Mihogaoka, Ibaraki, Osaka 567, Japan, [email protected]
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Abstract

We have constructed artificial superlattices with a combination of magnetic/magnetic and ferroelectric/ferromagnetic materials using a laser ablation technique. An ideal hetero-epitaxy can be obtained due to the similar crystal structure of the perovskite type di/ferroelectric BaTiO3, Pb(Zr,Ti)O3 (so-called PZT), SrTiO3 and ferro/antiferromagnetic LaFeO3, LaCrO3, (La,Sr)MnO3. First of all, we have controlled ferromagnetic order on LaFeO3/LaCrO3 superlattices formed on SrTiO3(l11) substrate. Such a spin structure(ferromagnetic order) can't be got in bulk condition. In the heterostructured ferromagnetic /ferroelectric devices, (La,Sr)MnO3/PZT there are remarkable and interesting phenomena. The electric properties of the ferromagnetic material can be controlled by the piezoelectric effect via distortion of the crystal structure.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 494: Symposium V – Science & Technology of Magnetic Oxides , 1997 , 201
Copyright
Copyright © Materials Research Society 1998

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References

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