This title appears in the Scientific Report : 2013 

Effect of resistive switching and electrically driven insulator-conductor transition in PbZrO $_{3}$ single crystals
Jankowska-Sumara, Irena (Corresponding author)
Szot, Krzysztof / Majchrowski, Andrzej / Roleder, Krystian
Elektronische Materialien; PGI-7
Physica status solidi / A, 210 (2013) 3, S. 507 - 512
Weinheim Wiley-VCH 2013
10.1002/pssa.201228586
Journal Article
Controlling Electron Charge-Based Phenomena
Please use the identifier: http://dx.doi.org/10.1002/pssa.201228586 in citations.
In this work, the results of detailed investigations of classical current–voltage characteristics measured both on the macro- and nanoscale with the use of LC-AFM microscopy are presented. With decreasing frequencies abnormal hysteresis I(V) loops in a PbZrO3 single crystal were observed, showing a bipolar resistive switching behavior. The observed phenomena have been accounted for by the nonstoichiometry and defects produced electrochemically in the surface layers. Due to the nonstoichiometric composition of the crystal surface we showed the possibility of reversible transformation from an insulating to a conducting state in an antiferroelectric crystal by an electroforming process. The model of filamentary structure produced by extended defects and an electrochemical process is applied here to explain the data.