Visualization of the Local Insulator-Metal Transition in Pr 0.7 Ca 0.3 MnO 3-Reference-Cited by-同舟云学术

Visualization of the Local Insulator-Metal Transition in Pr 0.7 Ca 0.3 MnO 3

Published:1998-06-19 Issue:5371 Volume:280 Page:1925-1928
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Fiebig Manfred¹²³⁴,Miyano Kenjiro¹²³⁴,Tomioka Yasuhide¹²³⁴,Tokura Yoshinori¹²³⁴

Affiliation:

1. M. Fiebig, Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan, and Japan Science and Technology Corporation (JST), Tokyo 171-0031, Japan.

2. K. Miyano, Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan.

3. Y. Tomioka, Joint Research Center for Atomic Technology (JRCAT), Tsukuba 305-0046, Japan.

4. Y. Tokura, Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan, and JRCAT, Tsukuba 305-0046, Japan.

Abstract

The light-induced insulator-metal transition in the “colossal magnetoresistance” compound Pr 0.7 Ca 0.3 MnO 3 is shown to generate a well-localized conducting path while the bulk of the sample remains insulating. The path can be visualized through a change of reflectivity that accompanies the phase transition. Its visibility provides a tool for gaining insight into electronic transport in materials with strong magnetic correlations. For example, a conducting path can be generated or removed at an arbitrary position just because of the presence of another path. Such manipulation may be useful in the construction of optical switches.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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