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首页> 外文期刊>Physical review >Development of Cu-spin correlation in Bi_(1.74)Pb_(0.38)Sr_(1.88)Cu_(1-y)Zn_yO_(6+δ) high-temperature superconductors observed by muon spin relaxation
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Development of Cu-spin correlation in Bi_(1.74)Pb_(0.38)Sr_(1.88)Cu_(1-y)Zn_yO_(6+δ) high-temperature superconductors observed by muon spin relaxation

机译：介子自旋弛豫观察到Bi_（1.74）Pb_（0.38）Sr_（1.88）Cu_（1-y）Zn_yO_（6 +δ）高温超导体中Cu自旋相关性的发展

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摘要

A systematic muon-spin-relaxation study in Bi-2201 high-rc cuprates has revealed that the Cu-spin correlation (CSC) is developed at low temperatures below 2 K in a wide range of hole concentrations where superconductivity appears. The CSC tends to weaken with increasing hole concentration. Moreover, CSC has been enhanced through the 3% substitution of Zn for Cu. These results are quite similar to those observed in La-214 high-Tc cuprates. Accordingly, it has been suggested that the intimate relationship between the so-called spin-charge stripe correlations and superconductivity is a universal feature in hole-doped high-Tc cuprates. Furthermore, an apparent development of CSC, which is suppressed through the Zn substitution oppositely, has been observed in nonsuperconducting heavily overdoped samples, which is argued in the context of a recently proposed ferromagnetic state in heavily overdoped cuprates.
机译：在Bi-2201高rc铜酸盐中进行的系统性muon-spin松弛研究表明，Cu-spin相关性（CSC）在2 K以下的低温下在宽孔浓度范围内出现超导电性而发展。随着空穴浓度的增加，CSC趋于减弱。此外，通过3％的Zn取代Cu增强了CSC。这些结果与La-214高Tc铜酸盐中观察到的结果非常相似。因此，已经提出，所谓的自旋电荷条纹相关性和超导性之间的密切关系是掺杂空穴的高Tc铜酸盐的普遍特征。此外，已经在非超导重掺杂样品中观察到CSC的明显发展，相反地通过Zn取代抑制了CSC的发展，这是在最近提出的重掺杂铜酸盐中铁磁态的背景下提出的。

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  • 来源
    《Physical review》 |2011年第18期|p.184522.1-184522.6|共6页
  • 作者

    T. Adachi; Y. Tanabe; K. Suzuki; Y. Koike; T. Suzuki; T. Kawamata; I. Watanabe;

  • 作者单位

    Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan;

    Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan;

    Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan;

    Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan;

    Advanced Meson Science Laboratory, Nishina Center for Accelerator-Based Science, R1KEN, 2-1 Hirosawa, Wako 351-0198, Japan;

    Advanced Meson Science Laboratory, Nishina Center for Accelerator-Based Science, R1KEN, 2-1 Hirosawa, Wako 351-0198, Japan;

    Advanced Meson Science Laboratory, Nishina Center for Accelerator-Based Science, R1KEN, 2-1 Hirosawa, Wako 351-0198, Japan;

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  • 正文语种 eng
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  • 关键词

    magnetic properties; effects of crystal defects, doping and substitution; muon spin rotation and relaxation;

    机译：磁性晶体缺陷;掺杂和取代的影响;介子旋转和松弛;

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