TITLE

Coexistence of metallic and insulating phases in epitaxial CaRuO[sub 3] thin films observed by scanning microwave microscopy

AUTHOR(S)
Hyun, S.; Cho, J. H.; Kim, A.; Kim, J.; Kim, T.; Char, K.
PUB. DATE
March 2002
SOURCE
Applied Physics Letters;3/4/2002, Vol. 80 Issue 9, p1574
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Using a scanning microwave microscope, we investigated the local electrical properties of epitaxial CaRuO[sub 3] thin films. The films showed a metal-insulator transition depending on the growth temperature and their thickness. We observed spatially separated highly conducting and poorly conducting regions in the films grown at a high temperature of 800 °C, which showed insulating behavior. The conduction in the CaRuO[sub 3] thin films with insulating behavior is percolative through the highly conducting regions and is closely related to this two-phase behavior.
ACCESSION #
6220568

 

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