Persistent conductive footprints of 109o domain walls in bismuth ferrite films

I. Stolichnov, M. Iwanowska, E. Colla, B. Ziegler, I. Gaponenko, P. Paruch, Mark Huijben, Augustinus J.H.M. Rijnders, N. Setter

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Using conductive and piezoforce microscopy, we reveal a complex picture of electronic transport at weakly conductive 109° domain walls in bismuth ferrite films. Even once initial ferroelectric stripe domains are changed/erased, persistent conductive paths signal the original domain wall position. The conduction at such domain wall “footprints” is activated by domain movement and decays rapidly with time, but can be re-activated by opposite polarity voltage. The observed phenomena represent true leakage conduction rather than merely displacement currents. We propose a scenario of hopping transport in combination with thermionic injection over interfacial barriers controlled by the ferroelectric polarization.
Original languageUndefined
Article number132902
Pages (from-to)-
Number of pages5
JournalApplied physics letters
Issue number13
Publication statusPublished - 2014


  • METIS-306819
  • IR-94987

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