Reflection spectroscopy on the photoinduced local metallic phase of Pr0.7Ca0.3MnO3

被引：35

作者：

Fiebig, M ^{[1
]}

Miyano, K

Tomioka, Y

Tokura, Y

机构：

[1] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

[2] Japan Sci & Technol Corp, Tokyo 1710031, Japan

[3] Joint Res Ctr Atom Technol, Tsukuba, Ibaraki 3050046, Japan

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 16期

关键词：

D O I：

10.1063/1.123834

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 local photoinduced insulator-metal transition (IMT) in a Pr0.7Ca0.3MnO3 crystal. Although the change of reflectivity due to the transition exhibits features which are characteristic for the IMT, the spectrum reveals strong modifications as compared to the magnetic-field induced bulk IMT. The different nature of the photoinduced IMT is attributed to the competition of the ferromagnetic metallic region with its antiferromagnetic insulating surrounding, which possibly leads to a filamentary metallic phase. Modifications also include a pronounced broadband electrochromism in the >1.8 eV spectral range. (C) 1999 American Institute of Physics. [S0003-6951(99)04916-5].

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页码：2310 / 2312

页数：3

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