c-axis charge dynamics in iron-based superconductors
Project/Area Number |
26800187
|
Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Condensed matter physics II
|
Research Institution | Osaka University |
Principal Investigator |
|
Project Period (FY) |
2014-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
|
Keywords | 鉄系超伝導体 / 単結晶育成 / 光学スペクトル |
Outline of Final Research Achievements |
In order to extract the universal properties of FeAs layers in various iron-based superconductors, we have studied the three dimensional electronic structure using single crystals of Ba(Fe,Co)2As2 and Sr4V2O6Fe2As2. From the c-axis optical spectrum of overdoped Ba(Fe,Co)2As2, it is turned out that the semiconducting c-axis behavior in low-temperature resistivity does not arise from the charge-gap opening. We succeeded in growing almost millimeter-sized single crystals of Sr4V2O6Fe2As2 for the first time, and revealed that the physical properties is sensitive to the amount of oxygen deficiency.
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Report
(3 results)
Research Products
(14 results)
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[Journal Article] Effect of magnetism on lattice dynamics in SrFe2As2 using high-resolution inelastic x-ray scattering2016
Author(s)
N. Murai, T. Fukuda, T. Kobayashi, M. Nakajima, H. Uchiyama, D. Ishikawa, S. Tsutsui, H. Nakamura, M. Machida, S. Miyasaka, S. Tajima, and A. Q. R. Baron
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Journal Title
Physical Review B
Volume: 93
Pages: 020301
DOI
Related Report
Peer Reviewed
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[Journal Article] Single-Crystal Growth of Ba1-xKxFe2As2 by KAs Self-Flux Method2016
Author(s)
K. Kihou, T. Saito, K. Fujita, S. Ishida, M. Nakajima, K. Horigane, H. Fukazawa, Y. Kohori, S. Uchida, J. Akimitsu, A. Iyo, C. H. Lee, and H. Eisaki
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Journal Title
Journal of the Physical Society of Japan
Volume: 85
Pages: 034718
DOI
Related Report
Peer Reviewed
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[Journal Article] In-plane electronic anisotropy in the antiferromagnetic orthorhombic phase of isovalent-substituted Ba(Fe1-xRux)2As22015
Author(s)
L. Liu, T. Mikami, S. Ishida, K. Koshiishi, K. Okazaki, T. Yoshida, H. Suzuki, M. Horio, L. C. C. Ambolode II, J. Xu, H. Kumigashira, K. Ono, M. Nakajima, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, T. Kakeshita, S. Uchida, and A. Fujimori
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Journal Title
Physical Review B
Volume: 92
Pages: 094503
DOI
Related Report
Peer Reviewed
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[Journal Article] Gap Structure Seen in Magnetic Penetration Depth and Flux-Flow Resistivity of 122 Fe-Based Superconductors2015
Author(s)
A. Maeda, T. Okada, H. Takahashi, F. Nabeshima, Y. Imai, K. Kitagawa, K. Matsubayashi, Y. Uwatoko, M. Nakajima, A. Iyo, and H. Eisaki
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Journal Title
Quantum Matter
Volume: 4
Pages: 308-313
DOI
Related Report
Peer Reviewed
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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
Physical Review B
Volume: 89
Pages: 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
Scientific Reports
Volume: 4
Pages: 5873
DOI
Related Report
Peer Reviewed / Open Access
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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
Journal of the Physical Society of Japan
Volume: 83
Pages: 104703
DOI
Related Report
Peer Reviewed
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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
Physical Review B
Volume: 90
Pages: 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
Physical Review B
Volume: 90
Pages: 195124
DOI
Related Report
Peer Reviewed
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[Journal Article] Anisotropy of the superconducting gap in the iron-based superconductor BaFe2(As1-xPx)22014
Author(s)
T. Yoshida, S. Ideta, T. Shimojima, W. Malaeb, H. Suzuki, I. Nishi, A. Fujimori, K. Ishizaka, S. Shin, S. Kasahara, T. Shibauchi, Y. Matsuda, M. Nakajima, S. Uchida, A. Iyo, H. Eisaki, H. Ikeda, R. Arita, S. Onari, H. Kontani et al.
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Journal Title
Scientific Reports
Volume: 4
Pages: 7292
DOI
Related Report
Peer Reviewed / Open Access
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