Regensburg 2007 – scientific programme

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DF: Fachverband Dielektrische Festkörper

DF 11: Poster Session

DF 11.13: Poster

Thursday, March 29, 2007, 14:30–18:00, Poster C

Local distribution of resistive switching channels in Nb-doped SrTiO3 — •Ruth Münstermann, Regina Dittmann, Krzysztof Szot, Chun-Lin Jia, Shaobo Mi, Paul Meuffels, and Rainer Waser — Institut für Festkörperforschung and Center of Nanoelectronic Systems for Information Technology, Forschungszentrum Jülich, 52425 Jülich, Germany

We have investigated the local current distribution in Nb-doped SrTiO3 (STO) single crystals and thin films by conductive AFM. STO films with 1 wtWe will discuss the influence of the Nb-rich nanoclusters on the current distribution and the switching phenomena and compare the data to self-doped, oxygen deficient STO [1]. [1] K. Szot, W. Speier, G. Bihlmayer and R. Waser, Switching the electrical resistance of individual dislocations in single-crystalline SrTiO3, Nature Materials 5 (4), 312-320, April 2006