DC Leakage behavior and Conduction Mechanism in (BiFeO3)m(SrTiO3)m Superlattices

Details DC Leakage behavior and Conduction Mechanism in (BiFeO3)m(SrTiO3)m Superlattices DC Leakage behavior and Conduction Mechanism in (BiFeO3)m(SrTiO3)m Superlattices

2008-05-06

arxiv.org/abs/0805.0673v1

Appl. Phys. Lett. 92 (2008) 232905

Physics

Condensed Matter

Materials Science

Submitted to Applied Physics Letters

Scientific paper

10.1063/1.2937843

Leakage current behavior of (BiFeO3)m(SrTiO3)m superlattice structures was studied and analyzed at different temperatures (303-473K) in the light of various models. While bulk limited Poole-Frenkel emission was observed to dominate the leakage current in the temperature range of 303 - 383 K, the space charge limited conduction was observed up to 473 K. With a Poole-Frenkel emission type of conduction, the activation energy range of 0.06 - 0.2 eV was calculated. The physical parameters, calculated from the analysis correlates with the intrinsic properties. The analysis of leakage current facilitates, interface engineering of heterostructures for device applications.

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