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

Takeshi Kawae | Zendy; Yuki Terauchi | Zendy; H. Tsuda | Zendy; Minoru Kumeda | Zendy; Akira Morimoto | Zendy

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

Author(s) -

Takeshi Kawae,

Yuki Terauchi,

H. Tsuda,

Minoru Kumeda,

Akira Morimoto

Publication year - 2009

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3098408

Subject(s) - materials science , ferroelectricity , thin film , pulsed laser deposition , electric field , coercivity , doping , crystallite , analytical chemistry (journal) , space charge , polarization (electrochemistry) , leakage (economics) , condensed matter physics , optoelectronics , dielectric , nanotechnology , electron , chemistry , metallurgy , economics , macroeconomics , physics , quantum mechanics , chromatography

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. © 2009 American Institute of Physics

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