Spin fluctuation of iron-based superconductors studied by neutron scattering
Project/Area Number |
24340090
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Condensed matter physics II
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Research Institution | National Institute of Advanced Industrial Science and Technology |
Principal Investigator |
CHUL-HO Lee 独立行政法人産業技術総合研究所, 省エネルギー研究部門, 研究グループ付 (80358358)
|
Co-Investigator(Renkei-kenkyūsha) |
EISAKI Hiroshi 産業技術総合研究所, 電子光技術研究部門, 首席研究員 (20242018)
IYO Akira 産業技術総合研究所, 電子光技術研究部門, 上級主任研究員 (50356523)
KAZUMASA Horigane 岡山大学, 大学院自然科学研究科, 准教授 (10406829)
|
Project Period (FY) |
2012-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2014: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2013: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2012: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
|
Keywords | 鉄系超伝導体 / 中性子非弾性散乱 / スピン揺動 / レゾナンスモード / スピンギャップ |
Outline of Final Research Achievements |
We studied spin fluctuations of iron-based superconductors using neutron scattering technique. Especially, we have examined the magnetic signal, so called spin resonance, which is enhanced strongly in superconducting phase. As results, strong relationship between magnetsim and superconductivity has been demonstrated. The spin resonance disappears in a certain carrier concentration range, which suggests that other interactions rather than magnetism play an essential role in the appearance of superconductivity. Various interactions might cooperate for inducing the superconductivity in iron-based superconductors.
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Report
(4 results)
Research Products
(52 results)
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[Journal Article] Identifying the 'fingerprint' of antiferromagnetic spin fluctuations in iron pnictide superconductors2015
Author(s)
M. P. Allan, Kyungmin Lee, A. W. Rost, M. H. Fischer, F. Massee, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, T-M. Chuang, J. C. Davis, and Eun-Ah Kim
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Journal Title
Nature Phys.
Volume: 11
Issue: 2
Pages: 177-182
DOI
Related Report
Peer Reviewed
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[Journal Article] Superconductivity at 4.4 K in Ba2Bi32014
Author(s)
A. Iyo, Y. Yanagi, S. Ishida, K. Oka, Y. Yoshida, K. Kihou, C. H. Lee, H. Kito, N. Takeshita, I. Hase, T. Yanagisawa, T. Kinjo, T. Nishio, and H. Eisaki
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Journal Title
Supercond. Sci. Technol.
Volume: 27
Issue: 7
Pages: 0720011-5
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Electronic structure of BaNi2P2 observed by angle-resolved photoemission spectroscopy2014
Author(s)
S. Ideta, T. Yoshida, M. Nakajima, W. Malaeb, H. Kito, H. Eisaki, A. Iyo, Y. Tomioka, T. Ito, K. Kihou, C. H. Lee, Y. Kotani, K. Ono, S. K. Mo, Z. Hussain, Z.-X. Shen, H. Harima, S. Uchida, and A. Fujimori
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Journal Title
Phys. Rev. B
Volume: 89
Issue: 19
Pages: 195138-195138
DOI
Related Report
Peer Reviewed
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[Journal Article] Normal-state charge dynamics in doped BaFe2As2: Roles of doping and necessary ingredients for superconductivity2014
Author(s)
M. Nakajima, S. Ishida, T. Tanaka, K. Kihou, Y. Tomioka, T. Saito, C. H. Lee, H. Fukazawa, Y. Kohori, T. Kakeshita, A. Iyo, T. Ito, H. Eisaki, and S. Uchida
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Journal Title
Sci. Rep.
Volume: 4
Issue: 1
Pages: 5873-5873
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Strong electronic correlations in iron pnictides: Comparison of the optical spectra for BaFe2As2-related compounds2014
Author(s)
M. Nakajima, S. Ishida, T. Tanaka, K. Kihou, Y. Tomioka, T.Saito, C. H. Lee, H. Fukazawa, Y. Kohori, T. Kakeshita, A. Iyo, T. Ito, H. Eisaki, and S. Uchida
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Journal Title
J. Phys. Soc. Jpn.
Volume: 83
Issue: 10
Pages: 104703-104703
DOI
NAID
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Vortex lattice structure in BaFe2(As0.67P0.33)2 by the small-angle neutron scattering technique2014
Author(s)
R. Morisaki-Ishii, H. Kawano-Furukawa, A. S. Cameron, L. Lemberger, E. Blackburn, A. T. Holmes, E. M. Forgan, L. M. DeBeer-Schmitt, K. Littrell, M. Nakajima, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, S. Uchida, J. S. White, C. D. Dewhurst, J. L. Gavilano, and M. Zolliker
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Journal Title
Phys. Rev. B
Volume: 90
Issue: 12
Pages: 125116-125116
DOI
Related Report
Peer Reviewed
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[Journal Article] Evidence of a universal relation between electron-mode coupling and Tc in Ba1-xKxFe2As2 superconductor from laser angle-resolved photoemission spectroscopy2014
Author(s)
W. Malaeb, T. Shimojima, Y. Ishida, T. Kondo, K. Okazaki, Y. Ota, K. Ohgushi, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, S. Ishida, M. Nakajima, S. Uchida, H. Fukazawa, T. Saito, Y. Kohori, and S. Shin
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Journal Title
Phys. Rev. B
Volume: 90
Issue: 19
Pages: 195124-195124
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Selective Raman Scattering Detection of the Dirac Node and the Anti-node of the Spin Density Wave Gap and Magnetic Excitations in BaFe2As22013
Author(s)
S. Sugai, Y. Mizuno, R. Watanabe, T. Kawaguchi, K. Takenaka, H. Ikuta, K. Kihou, M. Nakajima, C. H. Lee, A. Iyo, H. Eisaki, and S. Uchida
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Journal Title
J. Supercond. Nov. Magn.
Volume: 26
Issue: 4
Pages: 1179-1183
DOI
Related Report
Peer Reviewed
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[Journal Article] Anisotropy of the in-plane resistivity of underdoped Ba(Fe1-xCox)2As2 superconductors induced by impurity scattering in the antiferromagnetic orthorhombic phase2013
Author(s)
S. Ishida, M. Nakajima, T. Liang, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, T. Kakeshita, Y. Tomioka, T. Ito, and S. Uchida
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Journal Title
Phys. Rev. Lett.
Volume: 110
Issue: 20
DOI
Related Report
Peer Reviewed
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[Journal Article] Quantum oscillations in iron-based superconductors: BaFe2As2 vs. KFe2As22013
Author(s)
T. Terashima, N. Kurita, M. Kimata, M. Tomita, S. Tsuchiya, H. Satsukawa, A. Harada, K. Hazama, M. Imai, A. Sato, S. Uji, K. Kihou, C.-H. Lee, H. Kito, Y. Tomioka, T. Ito, A. Iyo, H. Eisaki, T. Liang, M. Nakajima, S. Ishida, S. Uchida, T. Saito, H. Fukazawa, Y. Kohori, H. Harima
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Journal Title
Journal of Physics: Conference Series
Volume: 449
Pages: 012022-012022
DOI
Related Report
Peer Reviewed
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[Journal Article] Probing the anisotropic vortex lattice in the Fe-based superconductor KFe2As2 using small-angle neutron scattering2013
Author(s)
H. Kawano-Furukawa, Lisa DeBeer-Schmitt, H. Kikuchi, A. S. Cameron, A. T. Holmes, R. W. Heslop, E. M. Forgan, J. S. White and J. L. Gavilano, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki,T. Saito, H. Fukazawa, and Y. Kohori
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Journal Title
Phys. Rev. B
Volume: 88
Issue: 13
DOI
Related Report
Peer Reviewed
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