Enhanced electrical polarization and ferromagnetic moment in a multiferroic BiFe O 3 Bi 3.25 Sm 0.75 Ti 2.98 V 0.02 O 12 double-layered thin film

Zhenxiang Cheng, Xiaolin Wang, Chinna Venkatasamy Kannan, Kyoshi Ozawa, Hideo Kimura, Takashi Nishida, Shujun Zhang, Thomas R. Shrout

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Abstract

Multiferroic BiFe O3 Bi3.25 Sm0.75 Ti2.98 V0.02 O12 double-layered thin films on PtTiSi O2 Si were fabricated using the pulsed-laser deposition technique. The films showed greatly enhanced ferroelectric and ferromagnetic properties. The values of the remanent polarization (2 Pr) and coercive field (Ec) were 71.8 μC cm2 and 148 kVcm at a maximum applied voltage of 13 V, respectively. The value of the magnetic moment was found to be 17.5 emu cm3. The enhancement of the polarization originated from the BiFe O3 with Bi3.25 Sm0.75 Ti2.98 V0.02 O12 working as a barrier layer. The enhancement of the magnetization is from the structural distortion of BiFe O3, due to partial epitaxial growth on the bismuth titanate surface.

Original languageEnglish (US)
Article number132909
JournalApplied Physics Letters
Volume88
Issue number13
DOIs
StatePublished - 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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