Coexistence of metallic and insulating phases in epitaxial CaRuO3 thin films observed by scanning microwave microscopy

被引：22

作者：

Hyun, S

Cho, JH

Kim, A

Kim, J

Kim, T

Char, K ^{[1
]}

机构：

[1] Seoul Natl Univ, Ctr Strongly Correlated Mat Res, Seoul 151742, South Korea

[2] Seoul Natl Univ, Sch Phys, Seoul 151742, South Korea

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 09期

关键词：

D O I：

10.1063/1.1448391

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using a scanning microwave microscope, we investigated the local electrical properties of epitaxial CaRuO3 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 degreesC, which showed insulating behavior. The conduction in the CaRuO3 thin films with insulating behavior is percolative through the highly conducting regions and is closely related to this two-phase behavior. (C) 2002 American Institute of Physics.

引用

页码：1574 / 1576

页数：3

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