Electronic nematic states and stripe order in cuprate high-Tc superconductors investigated by STM/STS
Project/Area Number |
26400343
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Condensed matter physics II
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Research Institution | Muroran Institute of Technology |
Principal Investigator |
MOMONO Naoki 室蘭工業大学, 工学研究科, 教授 (00261280)
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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Keywords | 銅酸化物高温超伝導体 / 走査トンネル顕微鏡 / ストライプオーダー / 電子ネマティック状態 / 電荷秩序 / 高温超伝導体 / 擬ギャップ / ネマティシティ / 酸化物高温超伝導体 / 走査トンネル分光 |
Outline of Final Research Achievements |
In STM experiments on Fe-doped Bi2212, two kinds of 2-dimensional(2D) modulation were observed in STM images; one shows 5a by 5a modulation and the other shows 4a by 4a modulation, where a is lattice constant within Cu-O layer. The latter can be ascribed to the pinning due to Fe impurities. In Dy-doped Bi2212, the superconducting transition temperature Tc is largely suppressed around the hole concentration p=1/8. The 2D modulation of the STM image for p=1/8 shows 3.3a by 3.3a period. It will be difficult to explain these periodicities of the 2D modulations by some kind of the Fermi surface nesting. In Dy-doped Bi2212, the 4-fold rotational symmetry of the 2D modulation in STM images is broken regardless of the STM tip and scanning direction, indicating that the 2D modulation for p=1/8 is consistent with some kind of the nematic states of the electrons.
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Report
(4 results)
Research Products
(29 results)
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[Journal Article] The Impurity Effects on the Superconducting Gap in the High-T-c Superconductor Bi2Sr2CaCu2-xFexO8+delta Investigated by STM/STS2016
Author(s)
S. Baar, N. Momono, K. Kawamura, Y. Kobayashi, S. Iwasaki, T. Sakawaki, Y. Amakai, H. Takano, T. Kurosawa, M. Oda, M. Ido
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Journal Title
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
Volume: 29
Issue: 3
Pages: 659-662
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] STM/STS studies for interplane disorder effects on the electronic states of the Cu-O plane in Bi22012015
Author(s)
T. Kurosawa, K. Takeyama, G. Hatta, H. Miyazaki, J. Yamaji, K. Yoshikawa, Y. Nakagawa, Y. Shibata, H. Yoshida, N. Momono, M. Oda and M. Ido
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Journal Title
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
Volume: 29
Issue: 25n26
Pages: 15420091-4
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Field-induced interplanar magnetic correlations in the high-temperature superconductor La1.88Sr0.12CuO42015
Author(s)
Romer, AT; Ray, PJ; Jacobsen, H; Udby, L; Andersen, BM; Bertelsen, M; Holm, SL; Christensen, NB; Toft-Petersen, R; Skoulatos, M; Laver, M; Schneidewind, A; Link, P; Oda, M; Ido, M, Momono, N; Lefmann, K
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Journal Title
PHYSICAL REVIEW B
Volume: 91
Issue: 17
Pages: 174507-174507
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Rotated stripe order and its competition with superconductivity in La1.88Sr0.12CuO42014
Author(s)
Thampy, V , Dean, M. P. M., Christensen, N. B., Steinke, L., Islam, Z, Oda, M, Ido, M, Momono, N, Wilkins, S. B., Hill, J. P.
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Journal Title
Physical Review B
Volume: 90
Issue: 10
DOI
Related Report
Peer Reviewed
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[Presentation] Dy-doping Effects on Cuprate High-Tc Superconductor Bi2Sr2CaCu2O8+d2016
Author(s)
K. Kawamura, Y. Kobayashi, C. Kobashi, S. Baar, K. Matsumoto, N. Momono, T. Kurosawa, M. Oda, and M. Ido
Organizer
Muroran-IT Rare Earth Workshop 2016
Place of Presentation
Rusutsu Resort & Convention, Rusutsu, Hokkaido, Japan
Year and Date
2016-06-11
Related Report
Int'l Joint Research
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[Presentation] Effects of La- and Eu-substitutions in High Tc Superconductor Bi2Sr2CuO6+d2016
Author(s)
Y. Kobayashi, K. Kawamura, S. Baar, N. Kaimai, N. Momono, K. Matsumoto, T. Kurosawa, M. Oda, and M. Ido
Organizer
Muroran-IT Rare Earth Workshop 2016
Place of Presentation
Rusutsu Resort & Convention, Rusutsu, Hokkaido, Japan
Year and Date
2016-06-11
Related Report
Int'l Joint Research
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[Presentation] Impurity defects in iron-doped Bi22122015
Author(s)
S. Baar, N. Momono, J. Suzuki, J. Soda, K. Kobayashi, H. Takano, Y. Amakai, T. Kurosawa, M. Oda, M. Ido
Organizer
20th International Conference on Magnetism
Place of Presentation
Palau de Congressos de Catalunya(Barcelona, Spain)
Year and Date
2015-07-05
Related Report
Int'l Joint Research
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