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Anomalous Charge Response of High Temperature Superconducting Cuprates

Anomalous Charge Response of High Temperature Superconducting Cuprates
高温超导铜氧化物的反常电荷响应
批准号:
19204038
负责人:
TAJIMA Setsuko
金额:
$31.12万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (A)
财政年份:
2007
资助国家:
日本
项目状态:
已结题
起止时间:
2007 至 2010

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中文摘要
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英文摘要
We have investigated the electronic state of various high-Tc cuprates such as (Y, Ca)Ba_2Cu_3O_y, by using Raman scattering, optical reflectivity and transport measurements. We found that the polarization dependence of Raman scattering that is typical for d-wave superconductors is lost when a pseudogap is closed, and that carrier overdoping induces unpaired carriers due to some mechanism different from a usual impurity pair-breaking. All these results strongly suggest that the electronic state in the overdoped regime is intrinsically inhomogeneous.
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Electronic state in the overdoped region where the pseudogap disappears
赝能隙消失的过掺杂区域的电子态
DOI: --
发表时间: 2008
期刊:
影响因子: --
作者: [T. Matsuoka, T. Fujimoto, K. Tanaka, S. Miyasaka, S. Tajima, K. Fujii, M. Suzuki, M. Tonouchi, S. Tajima]
通讯作者: S. Tajima
Superconducting electronic state in optimally doped Yba_2Cu_3O_<7・8> observed with laser-excited angle-resolved photoemission spectroscopy
激光激发角分辨光电子能谱观测最佳掺杂Yba_2Cu_3O_<7・8>中的超导电子态
DOI: --
发表时间: 2009
期刊: Physical Review B 79
影响因子: --
作者: [M.Okawa, et al.]
通讯作者: et al.
Mn substitution effect in two-gap superconductor MgB_m2
二能隙超导体MgB_m2中的Mn替代效应
DOI: --
发表时间: 2008
期刊: J. Phys. Soc. Jpn 77
影响因子: --
作者: [T. Masui, N. Suemitsu, Y. Mikasa, S. Lee, S. Tajima]
通讯作者: S. Tajima
View of multiple ordered states for high-T_c superconducting cuprates
高温超导铜氧化物的多有序态视图
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者: [渡辺真吾、冨川喜弘、高橋正明、河谷芳雄、宮崎和幸, 佐藤薫, S. Hikino, S.Tajima]
通讯作者: S.Tajima
92
    Pseudogap and superconducting gap in high temperature superconducting copper oxides
    • 批准号:
      24340083
    • 项目类别:
      Grant-in-Aid for Scientific Research (B)
    • 资助金额:
      $12.06万
    • 财政年份:
      2012
    • 负责人:
      TAJIMA Setsuko
    • 依托单位:
    Low Energy Charge Excitation in Copper Oxide Superconductors
    • 批准号:
      17340109
    • 项目类别:
      Grant-in-Aid for Scientific Research (B)
    • 资助金额:
      $10.18万
    • 财政年份:
      2005
    • 负责人:
      TAJIMA Setsuko
    • 依托单位:
    海外基金