Improved leakage and ferroelectric properties of Mn and Ti codoped BiFeO3 thin films

By T. Kawae, Yuki Terauchi, H. Tsuda, M. Kumeda, A. Morimoto. 2009

230 citations recorded by the source corpus.

Polycrystalline BiFeO3 (BFO), Ti-doped BFO, Mn-doped BFO, and (Mn, Ti)-codoped BFO (BFMT) thin films were fabricated on Pt/SrTiO3 (100) substrate by pulsed laser deposition. Observed leakage current behavior in those ion-doped BFO films indicated the dominance of space-charge-limited current in the high electric field region. The leakage current of the BFMT film was much reduced in relation to the other films due to the formation of deep traps. In the BFMT film, well saturated P-E hysteresis curves were observed. Remanent polarization and coercive field for maximum electric field of 2100 kV/cm were 75 μC/cm2 and 310 kV/cm, respectively.

Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/3fb38ce8b5168e82b9231ea76a78faea9744da14

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Citations in the corpus

• Investigation of transport behavior in Ba doped BiFeO3 (2012, methodology): “[13] codoped BiFeO3 with Mn and Ti and found greatly reduced leakage current and high remnant polarization of 75 mC/cm when they applied an electric field of 2100 kV/ cm.”