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首页> 外文期刊>Physical review >Local antiferromagnetic correlations in the iron pnictide superconductors LaFeAsO_(1-x)F_x and CaCFe_(1-x)Co_x)_2As_2 as seen via normal-state susceptibility
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Local antiferromagnetic correlations in the iron pnictide superconductors LaFeAsO_(1-x)F_x and CaCFe_(1-x)Co_x)_2As_2 as seen via normal-state susceptibility

机译:通过常态磁化率可以看出,铁氧体超导体LaFeAsO_(1-x)F_x和CaCFe_(1-xCo_x)_2As_2中的局部反铁磁相关性

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摘要

We have studied the interplay of magnetism and superconductivity in LaFeAsO_(1-x)F_x and Ca(Fe_(1-x)Co_x)_2As_2. While antiferromagnetic spin-density wave formation is suppressed and superconductivity evolves, all samples show a doping-independent strong increase in the normal-state susceptibility upon heating which appears a general feature of iron pnictides. The data provide evidence for robust local antiferromagnetic correlations persisting even in the superconducting regime of the phase diagram.
机译:我们研究了LaFeAsO_(1-x)F_x和Ca(Fe_(1-x)Co_x)_2As_2中磁性和超导的相互作用。尽管反铁磁自旋密度波的形成受到抑制并形成了超导性,但所有样品在加热时均显示出与掺杂无关的常态磁化率的强烈增加,这似乎是铁肽的普遍特征。数据提供了即使在相图的超导状态下仍存在稳健的局部反铁磁相关性的证据。

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  • 来源
    《Physical review》 |2010年第2期|024506.1-024506.5|共5页
  • 作者单位

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

    Institute for Solid State Research, IFW Dresden, D-01171 Dresden, Germany;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    superconducting materials; magnetic properties;

    机译:超导材料;磁性;

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