Study of multi-dynamics of electronic degrees of freedom in high-Tc cuprate superconductor
Project/Area Number |
23340093
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Condensed matter physics II
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Research Institution | Tohoku University |
Principal Investigator |
FUJITA Masaki 東北大学, 金属材料研究所, 教授 (20303894)
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Co-Investigator(Kenkyū-buntansha) |
YAMASE Hiroyuki 国立研究開発法人物質・材料研究機構, 環境・エネルギー材料部門 超伝導物性ユニット, 主任研究員 (10342867)
MORI Michiyasu 国立研究開発法人日本原子力研究開発機構, 先端基礎研究センター, 副主任研究員 (30396519)
ADACHI Tadashi 上智大学, 理工学部, 准教授 (40333843)
ISHII Kenji 国立研究開発法人日本原子力研究開発機構, 量子ビーム応用研究部門 構造物性研究ユニット, 研究副主任 (40343933)
|
Project Period (FY) |
2011-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2014: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2012: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2011: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
|
Keywords | 高温超伝導 / 中性子散乱 / 結晶作成 / 放射光X線散乱 / 単結晶作成 / 量子ビーム / 単結晶育成 |
Outline of Final Research Achievements |
This research aims to clarify an existence of complex excitation composed of spin, charge and phonon degrees of freedom in high-Tc cuprate superconductor, with utilizing quantum beams such as neutron, synchrotron X-ray and muon. The hierarchical spin excitation attributed to the localized and itinerant nature of electron was found in the hole-doped system. Furthermore, we clarified an enhancement of spin-phonon coupling by the hole-doping. On the other hand, in the electron-doped system, the evidence of spin-charge coupling was seen in the high-energy excitation. The most important result of this research is that we clarified an existence of electron-hole asymmetry in the spin and charge correlations in cuprate superconductors. The coupling among spin change and phonon is also different in the hole and electron doped systems.
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Report
(5 results)
Research Products
(72 results)
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[Journal Article] Unscalling Superconducting Parameters with Tc for Bi-2212 and Bi-2223: A Magnetotransport Study in the Superconductive Fluctuation Regime2015
Author(s)
S. Adachi, T. Usui, Y. Ito, H. Kudo, H. Kushibiki, K. Murata, T. Watanabe, K. Kudo, T. Nishizaki, N. Kobayashi, S. Kimura, M. Fujita, K. Yamada, T. Noji, Y. Koike, T. Fujii,
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Journal Title
J. Phys. Soc. Jpn.
Volume: 84
Pages: 0247061-0247066
DOI
Related Report
Peer Reviewed
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[Journal Article] High-Energy Spin and Charge Excitations in Electron-Doped Copper Oxide Superconductors2014
Author(s)
K. Ishii, M. Fujita, T. Sasaki, M. Minola, G. Dellea, C. Mazzoli, K. Kummer, G. Ghiringhelli, L. Braicovich, T. Tohyama, K. Tsutsumi, K. Sato, R. Kajimoto, K. Ikeuchi, K. Yamada, M. Yoshida, M. Kurooka, and J. Mizuki,
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Journal Title
Nature Communications
Volume: 5
Pages: 4714/1-8
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Itinerant Effects and Enhanced Magnetic Interactions in Bi-Based Multilayer Cuprates2014
Author(s)
M. P. M. Dean, A. J. A. James, A. C. Walters, V. Bisogni, I. Jarrige, M. Hucker, E. Giannini, M. Fujita, J. Pelliciari, Y. B. Huang, R. M. Konik, T. Schmitt, and J. P. Hill
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Journal Title
Phys. Rev. B.
Volume: 90
Pages: 220506/1-6
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Temperature Dependence of Spin Fluctuations in Underdoped La1.90Sr0.10CuO42014
Author(s)
K. Sato, M. Matsuura, M. Fujita, R. Kajimoto, S. Ji, K. Ikeuchi, M. Nakamura, Y. Inamura, M. Arai, M. Enoki, and K. Yamada
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Journal Title
JPS Conf. Proc.
Volume: 3
Pages: 017010/1-6
DOI
Related Report
Peer Reviewed
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[Journal Article] Neutron Brillouin Scattering Experiments with Pulsed Neutrons on High Resolution Chopper Spectrometer HRC2014
Author(s)
S. Itoh, T. Yokoo, D. Kawana, Y. Kaneko, Y. Tokura, M. Fujita, K. Yoshida, K. Saito, N. Inami, Y. Takeichi, K. Ono, and Y. Endoh
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Journal Title
Journal of Physics: Conference Series
Volume: 502
Pages: 012043/1-5
DOI
Related Report
Peer Reviewed
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[Journal Article] Construction of Polarized Inelastic Neutron Spectrometer in J-PARC2014
Author(s)
T. Yokoo, K. Ohoyama , S. Itoh, J. Suzuki, K. Iwasa, T. J. Sato, H. Kira, Y. Sakaguchi, T. Ino, T. Oku, K. Tomiyasu, M. Matsuura, H. Hiraka, M. Fujita, H. Kimura, T. Sato, J. Suzuki, M. Takeda, K. Kaneko, M. Hino, and S. Muto
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Journal Title
Journal of Physics: Conference Series
Volume: 502
Pages: 012046/1-4
DOI
Related Report
Peer Reviewed
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[Journal Article] Temperature Dependence of Spin Fluctuations in Underdoped La1.90Sr0.10CuO42014
Author(s)
K. Sato, M. Matsuura, M. Fujita, R. Kajimoto, S. Ji, K. Ikeuchi, M. Nakamura, Y. Inamura, M. Arai, M. Enoki, and K. Yamada
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Journal Title
J. Phys. Soc. Jpn.
Volume: accepted
Pages: accepted
Related Report
Peer Reviewed
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[Journal Article] Temperature Dependence of Spin Excitations in the Frustrated Spin Chain System CuGeO32013
Author(s)
M. Fujita, C. D. Frost, S. M. Bennington, R. Kajimoto, M. Nakamura, Y. Inamura, F. Mizuno, K. Ikeuchi, and M. Arai,
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Journal Title
J. Phys, Soc. Jpn.
Volume: 82
Pages: 084708
DOI
Related Report
Peer Reviewed
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[Journal Article] Resonant inelastic X-ray scattering study of intra-band charge excitation in hole-doped high-Tc cuprates2013
Author(s)
S. Wakimoto, K. Ishii, H. Kimura, K. Ikeuchi, Y. Yoshida, T. Adachi, D. Case, M. Fujita, Y. Fukunaga, T. Gog, Y. Koike, J. Mizuki, and K. Yamada
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Journal Title
Phys. Rev. B.
Volume: 87
Pages: 104511
DOI
Related Report
Peer Reviewed
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[Presentation] Single-crystal growth of underdoped Bi-22232014
Author(s)
S. Adachi, T. Usui, K. Takahashi, K. Kosugi, T. Watanabe, T. Nishizaki, T. Adachi, S. Kimura, K. Sato, K. M. Suzuki, M. Fujita, K. Yamada, T. Fujii
Organizer
27th International Symposium on Superconductivity
Place of Presentation
船橋(東京都)
Year and Date
2014-11-25 – 2014-11-27
Related Report
Int'l Joint Research
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[Presentation] Single-crystal growth of underdoped Bi-22232014
Author(s)
S. Adachi, T. Usui, K. Takahashi, K. Kosugi, T. Watanabe, T. Nishizaki, T. Adachi, S. Kimura, K. Sato, K. M. Suzuki, M. Fujita, K. Yamada, T. Fujii
Organizer
27th International Symposium on Superconductivity
Place of Presentation
タワーホール船堀(東京都)
Year and Date
2014-11-25 – 2014-11-27
Related Report
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[Presentation] Science from the Initial Operation of HRC2014
Author(s)
S. Itoh, T. Yokoo, T. Masuda, H. Yoshizawa, M. Soda, Y. Ikeda, S. Ibuka, D. Kawana, T. J. Sato, Y. Nambu, K. Kuwahara, S. Yano, J. Akimitsu, Y. Kaneko, Y. Tokura, M. Fujita, M. Hase, K. Iwasa, H. Hiraka, T. Fukuda, K. Ikeuchi, K. Yoshida, T. Yamaguchi, K. Ono, Y. Endoh
Organizer
The 2nd International Symposium on Science at J-PARC 2014
Place of Presentation
つくば国際会議場(茨城県つくば市)
Year and Date
2014-07-14 – 2014-07-15
Related Report
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[Presentation] Science from the Initial Operation of HRC2014
Author(s)
S. Itoh, T. Yokoo, T. Masuda, H. Yoshizawa, M. Soda, Y. Ikeda, S. Ibuka, D. Kawana, T. J. Sato, Y. Nambu, K. Kuwahara, S. Yano, J. Akimitsu, Y. Kaneko, Y. Tokura, M. Fujita, M. Hase, K. Iwasa, H. Hiraka, T. Fukuda, K. Ikeuchi, K. Yoshida, T. Yamaguchi, K. Ono, Y. Endoh
Organizer
The 2nd International Symposium on Science at J-PARC 2014
Place of Presentation
エポカル国際会議場(つくば市)
Year and Date
2014-07-13 – 2014-07-15
Related Report
Int'l Joint Research
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