Development of a high speed imaging system combined with pulse magnets
| Project/Area Number |
25610087
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics II
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Research Collaborator |
SHIBUYA Jumpei
KAWACHI Shiro
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | マルチフェロイクス / 磁性 / メモリー効果 / イメージング / ビスマスフェライト / 強磁場 / フラストレーション |
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| Outline of Final Research Achievements |
We developed a high speed imaging system, which can be combined with pulse magnets. This new system enables us to observe microscope images of the sample in wide range of magnetic field and temperature and also in the transmission configuration. In evaluation of the basic properties of the target multiferroic materials, we found novel field-induced ferroelectric phase in a chiral antiferromagnet and non-volatile magnetoelectric memory effects in bismuth ferrite. High field imaging of the bismuth ferrite with using the newly developed system revealed that domain structures visible in the near infrared light were irrelevant to the magnetoelectric domains that were expected to play the key role in the memory effect.
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Report
(4 results)
Research Products
(27 results)
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[Presentation] Co2Cr(Ga,Si)合金におけるリエントラントマルテンサイト変態のエントロピー変化2016
Author(s)
許キョウ, 木原工, 三宅厚志, 徳永将史, 長迫実, 片岡光生, 大森俊洋, 梅津理恵, 鹿又武, 貝沼亮介
Organizer
日本物理学会 第71回年次大会
Place of Presentation
東北学院大学（宮城県・仙台市）
Year and Date
2016-03-21
Related Report
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