Visualization of Grain Structure in HTS HoBCO Coated Conductor Using Laser Induced Thermoelectric Voltage
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概要
- 論文の詳細を見る
Grain structure imaging in high temperature superconductor coated conductor studies is crucial because its ability to carry current strongly depends on the microstructure. We have come with a novel method of imaging the CC grain structure using laser induced thermoelectric voltage in mm length with a resolution of 2 to 3μm on a textured metal based HoBCO CC microbridge. Due to anisotropic difference between the ab-plane and the c-axis of the CC, we are able to visualize its grain structure at high resolution. This responsive Seebeck voltage amplitude is proportionate to the tilting angle of the CuO_2 plane of the grains relative to the tape surface. From 2D map of voltage phase singnal, we can clearly visualize domain structure depending on the tilting direction of the grains. Further statistical analysis showed a good relationship with XRD crystal analysis in literature.
- 九州大学の論文
著者
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FUJIWARA Takashi
Department of Pediatrics, Yamada Red-Cross Hospital
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Zulkifli Zulistiana
Department Of Electrical And Electronic Systems Engineering Graduate School Of Information Science A
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SHOYAMA Toshihiro
Department of Electrical and Electronic Systems Engineering, Graduate School of Information Science
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Shoyama Toshihiro
Department Of Electrical And Electronic Systems Engineering Graduate School Of Information Science A
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Fujiwara Takashi
Department Of Electrical And Electronic Systems Engineering Graduate School Of Information Science A
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Fujiwara Takashi
Department of Cardiology, Iwakuni Clinical Center
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