Visualization and switching of the local insulator-metal transition in Pr0.7Ca0.3MnO3

被引：6
作者：
Fiebig, M [1 ]
Miyano, K
Tomioka, Y
Tokura, Y
机构：
[1] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan
[2] Joint Res Ctr Atom Technol, Tsukuba, Ibaraki 3050046, Japan
[3] Japan Sci & Technol Corp, Tokyo 1710031, Japan
[4] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan
来源：
JOURNAL OF APPLIED PHYSICS | 1999年 / 85卷 / 08期
关键词：
D O I：
10.1063/1.369895
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Optical spectroscopy and topography techniques were used to study the photoinduced insulator-metal transition in the "colossal magnetoresistance'' compound Pr0.7Ca0.3MnO3. The transition is shown to generate a well-localized conducting path while the bulk of the sample remains insulating. A change of reflectivity with a characteristic spectral dependence allows for its visualization. A two-stage mechanism is proposed for the local phase transition. Switching experiments with two competing paths are discussed. (C) 1999 American Institute of Physics. [S0021-8979(99)25808-2].
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页码：5561 / 5563
页数：3
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