2009 Fiscal Year Final Research Report
Study on the PIN junction in the parent material of the high-temperature cuprate superconductors
| 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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| Keywords | 強相関電子系 / 結晶成長 / モット絶縁体 |
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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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[Journal Article] Possibility of magnetic-field-induced reconstruction of the Fermi surface in underdoped cuprates: Constraints from infrared magneto-optics2010
Author(s)
A.D. LaForge, A.A. Schafgans, S.V. Dordevic, W.J. Padilla, K.S. Burch, Z.Q. Li, Kouji Segawa, Seiki Komiya, Yoichi Ando, J.M. Tranquada, D.N. Basov
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Journal Title
Physical Review B 81巻
Pages: 064510-(1-7)
Peer Reviewed
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