Checkerboard charge order and pseudogap inhigh-Tc cuprate superconductors investigated by STM/STS
Project/Area Number |
18540332
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Condensed matter physics II
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Research Institution | Muroran Institute of Technology (2007-2008) Hokkaido University (2006) |
Principal Investigator |
MOMONO Naoki Muroran Institute of Technology, 工学部, 准教授 (00261280)
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Project Period (FY) |
2006 – 2008
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Project Status |
Completed (Fiscal Year 2008)
|
Budget Amount *help |
¥3,920,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥420,000)
Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2007: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2006: ¥2,100,000 (Direct Cost: ¥2,100,000)
|
Keywords | 銅酸化物高温超伝導 / 擬ギャップ / 電荷秩序 / 走査トンネル顕微鏡 / 走査トンネル分光 / 銅酸化物高温超伝導体 / 超伝導ギャップ / 不純物効果 / 高温超伝導体 / ストライプ鉄序 / Bi2212 |
Research Abstract |
銅酸化物高温超伝導体の超伝導発現機構を明らかにする上で、擬ギャップとチェッカーボード型電荷秩序の関連性を明らかにすることは大変重要である。本研究では, 走査トンネル顕微鏡・分光(STM/STS)を主に用いて、両者の関係および性質について詳しく調べた。その結果、(1)擬ギャップ状態でのチェッカーボード型電荷秩序は超伝導状態での電荷秩序と同様な性質を持つこと、(2)(電荷秩序の形成や擬ギャップに関係する)アンチノード付近のエネルギーギャップが少量の不純物の添加により大きく抑制されることが明らかとなった。
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Report
(4 results)
Research Products
(54 results)
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[Journal Article] Anisotropic quasiparticle scattering rates in slightly underdoped to optimally doped high-temperature La_<2-x>Sr_xCuO_4 superconductors2008
Author(s)
J. Chang, M. Shi, S. Pailhes, M. Mansson, T. Claesson, O. Tjernberg, A. Bendounan, Y. Sassa, L. Patthey, N. Momono, M. Oda, M. Ido, S. Guerrero, C. Mudry, and J. Mesot
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Journal Title
Phys. Rev. B 78
Pages: 205103-205107
Related Report
Peer Reviewed
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[Journal Article] Tuning competing orders in La_<2-x>Sr_xCuO_4 cuprate superconductors by the application of an external magnetic field2008
Author(s)
J. Chang, Ch. Niedermayer, R. Gilardi, N.B. Christensen, H.M. Ronnow, D.F. McMorrow, M. Ay, J. Stahn, O. Sobolev, A. Hiess, S. Pailhes, C. Baines,N. Momono, M. Oda, M. Ido, J. Mesot
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Journal Title
Phys. Rev. B 78
Pages: 104525-104529
Related Report
Peer Reviewed
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[Journal Article] Coherent d-wave superconducting gap in underdoped La_<2-x>Sr_xCuO_4 by angle-resolved photoemission spectroscopy2008
Author(s)
M. Shi, J. Chang, S. Pailhes, M. R. Norman, J. C. Campuzano, M. Mansson, T. Claesson, O. Tjernberg, A. Bendounan, L. Patthey, N. Momono, M. Oda, M. Ido, C.Mudry, J. Mesot
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Journal Title
Phys. Rev. Lett. 101
Pages: 47002-47005
Related Report
Peer Reviewed
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[Journal Article] Electronic structure near the 1/8-anomaly in La-based cuprates2008
Author(s)
J. Chang, Y. Sassa, S. Suerrero, M. Mansson, M. Shi, S. Pailhes, A. Bendounan, R. Mottl, T. Claesson, O. Tjernberg, L. Patthey, M, Ido, M. Oda, N. Momono, C. Mudry, J. Mesot
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Journal Title
New Journal of Physics 10
Pages: 103016-103016
Related Report
Peer Reviewed
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[Journal Article] On-board sample cleaver2007
Author(s)
M. Mansson, T. Claesson, U. O. Karlsson, O. Tjernberg, S. Pailhes, J. Chang, J. Mesot, M. Shi, L. Patthey, N. Momono, M. Oda, M. Ido
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Journal Title
Review of Scientific Instruments 78
Pages: 76103-76103
Related Report
Peer Reviewed
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[Journal Article] When low- and high-energy electronic responses meet in cuprate superconductors2007
Author(s)
J. Chang, S. Pailhes, M. Shi, M. Mansson, T. Claesson, O. Tjernberg, J. Voigt, V. Perez, L. Patthey, N. Momono, M. Oda, M. Ido, A. Schnyder, C. Mudry, J. Mesot
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Journal Title
Phys. Rev. B 75
Pages: 224508-224513
Related Report
Peer Reviewed
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[Journal Article] Magnetic-field-induced spin excitations and renormalized spin gap of the underdoped La_<1.895>Sr_<0.105>CuO_4 superconductor2007
Author(s)
J. Chang, A. P. Schnyder, R. Gilardi,H. M. Ronnow, S. Pailhes, N. B. Christensen, Ch. Niedermayer, D. McMorrow, A. Hiess, A. Stunault, M. Enderle, B. Lake, O. Sobolev, N. Momono, M. Oda, M. Ido, C. Mudry, J. Mesot
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Journal Title
Phys. Rev. Lett. 98
Pages: 77004-77007
Related Report
Peer Reviewed
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[Journal Article] Muons as local probes of three body correlations in the mixed state of type-II superconductors2006
Author(s)
G. I. Menon, A. J. Drew, U. K. Divarkar, S. L. Lee, R. Giladi, J. Mesot, F. Y. Ogrin, D. Charakambous, E. M. Forgan, N. Momono, M. Oda, C. Dewhurst, C. Baines
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Journal Title
Phys. Rev. Lett. 97
Pages: 177004-177007
Related Report
Peer Reviewed
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