A high-speed polarizing microscope system combined with a 37 T pulse magnet has been developed. This system was applied to successfully visualize the field-induced collapse of charge-orbital ordering in a layered manganite . Quantitative analyses of the obtained polarizing microscope images provided clear evidence of this transition in contrast to rather moderate changes in magnetization and magnetoresistance. The ability of this system to carry out quantitative analysis was further tested through the observation of Faraday rotation in a crystal. The Verdet constant determined from the polarizing images is in reasonable agreement with that in literature. Local intensity analyses of the images indicate that we can investigate magneto-optical signals within an accuracy of 0.85% in an area of .
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April 2010
Research Article|
April 12 2010
Development of high-speed polarizing imaging system for operation in high pulsed magnetic field
I. Katakura;
I. Katakura
1The Institute for Solid State Physics,
The University of Tokyo
, Kashiwa 277-8581, Japan
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M. Tokunaga;
M. Tokunaga
a)
1The Institute for Solid State Physics,
The University of Tokyo
, Kashiwa 277-8581, Japan
2JST,
TRIP
, Sanbancho, Chiyoda, Tokyo 102-0075, Japan
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A. Matsuo;
A. Matsuo
1The Institute for Solid State Physics,
The University of Tokyo
, Kashiwa 277-8581, Japan
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K. Kawaguchi;
K. Kawaguchi
1The Institute for Solid State Physics,
The University of Tokyo
, Kashiwa 277-8581, Japan
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K. Kindo;
K. Kindo
1The Institute for Solid State Physics,
The University of Tokyo
, Kashiwa 277-8581, Japan
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M. Hitomi;
M. Hitomi
3Department of Physics,
Sophia University
, Chiyoda, Tokyo 102-8554, Japan
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D. Akahoshi;
D. Akahoshi
3Department of Physics,
Sophia University
, Chiyoda, Tokyo 102-8554, Japan
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H. Kuwahara
H. Kuwahara
3Department of Physics,
Sophia University
, Chiyoda, Tokyo 102-8554, Japan
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a)
Electronic mail: ineko@issp.u-tokyo.ac.jp.
Rev. Sci. Instrum. 81, 043701 (2010)
Article history
Received:
December 03 2009
Accepted:
February 19 2010
Citation
I. Katakura, M. Tokunaga, A. Matsuo, K. Kawaguchi, K. Kindo, M. Hitomi, D. Akahoshi, H. Kuwahara; Development of high-speed polarizing imaging system for operation in high pulsed magnetic field. Rev. Sci. Instrum. 1 April 2010; 81 (4): 043701. https://doi.org/10.1063/1.3359954
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