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자연과학대학
물리학전공
Journal papers
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Inhomogeneous barrier and hysteretic transport properties of Pt/SrTiO 3 junctions
Title
Inhomogeneous barrier and hysteretic transport properties of Pt/SrTiO 3 junctions
Authors
Kim H.
;
Park C.
;
Lee S.
;
Kim D.-W.
Ewha Authors
김동욱
SCOPUS Author ID
김동욱
Issue Date
2009
Journal Title
Journal of Physics D: Applied Physics
ISSN
0022-3727
Citation
Journal of Physics D: Applied Physics vol. 42, no. 5
Indexed
SCI; SCIE; SCOPUS
Document Type
Article
Abstract
We investigated the temperature-dependent transport properties of Pt/Nb-doped SrTiO3 junctions, exhibiting rectifying and hysteretic behaviours. The conventional Schottky diode model failed to explain the current-voltage characteristics, since the estimated Richardson constant was too small. The temperature dependence of the barrier height and the ideality factor showed that the inhomogeneous barrier model described the experimental data well. The estimated interfacial potential fluctuation was dependent on the resistance states. This suggested that the spatial inhomogeneity could affect the resistive switching phenomena. © 2009 IOP Publishing Ltd.
DOI
10.1088/0022-3727/42/5/055306
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