| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
In this research, I performed two powerful spectroscopy measurements (terahertz time-domain spectroscopy and angle-resolved photoemission spectroscopy (ARPES)) on charge-spin stripe ordered high-Tc cuprates to clarify the intrinsic electronic structure of stripe order. From terahertz time-domain spectroscopy, I found that the superconducting signal still survives in the extremely low energy region, where the conventional far-infrared spectroscopy can not detect. ARPES measurements reveals that the superconducting pair strength observed as a superconducting energy gap, is getting smaller with stabilizing stripe order. Our finding settle down the longstanding problem if the stripe order enhance or suppress the superconducting gap.
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