| Project/Area Number |
20740196
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | Osaka University |
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Principal Investigator |
SEGAWA Koji Osaka University, 産業科学研究所, 准教授 (20371297)
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| Project Period (FY) |
2008 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 強相関電子系 / 結晶成長 / モット絶縁体 / 銅酸化物高温超伝導体 / 高品質単結晶 / 輸送特性 / PIN接合 |
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| Research Abstract |
The present research aimed at creating the PIN junction in "ambipolar" cuprate systems, which was recently discovered in high-temperature cuprate superconductors. The PIN junction was not successfully created because of a difficulty to grow large single crystals of the "ambipolar" cuprate systems. However, as for the physical properties in the "ambipolar" cuprates, two important results are elucidated : One is the jump of the chemical potential, and the other is that the magnetic structure changes upon changing the sign of the charge carriers.
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