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首页> 外文期刊>Physical review >Theory of diamagnetism in the pseudogap phase of high-temperature superconductors: Implications from the self-energy of angle-resolved photoemission
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Theory of diamagnetism in the pseudogap phase of high-temperature superconductors: Implications from the self-energy of angle-resolved photoemission

机译：高温超导体拟隙相中的反磁性理论：来自角度分辨光发射自能的启示

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摘要

In this paper we apply the emerging-consensus understanding of the fermionic self-energy deduced from angle-resolved photoemisssion spectroscopy (ARPES) experiments to deduce the implications for orbital diamagnetism in the underdoped cuprates. Many theories using many different starting points have arrived at a broadened BCS-like form for the normal state self-energy associated with a d-wave excitation gap, as is compatible with ARPES data. Establishing consistency with the f-sum rules, we show how this self-energy, along with the constraint that there is no Meissner effect in the normal phase, are sufficient to deduce the orbital susceptibility. We conclude, moreover, that diamagnetism is large for a d-wave pseudogap. Our results should apply rather widely to many theories of the pseudogap, independent of the microscopic details.
机译：在本文中，我们运用对角分辨光发射光谱法（ARPES）实验得出的铁离子自能的新兴共识理解，来推断低掺杂铜酸盐对轨道反磁性的影响。与ARPES数据兼容，许多使用许多不同起点的理论已经得出了与d波激发间隙相关的正常状态自能的类似于BCS的形式。建立与f-sum规则的一致性，我们将展示这种自能以及正态阶段没有迈斯纳效应的约束条件足以推断出轨道磁化率。此外，我们得出的结论是，对于d波伪间隙，反磁性很大。我们的结果应该相当广泛地应用于伪间隙的许多理论，而与微观细节无关。

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  • 来源
    《Physical review》 |2012年第18期|184513.1-184513.12|共12页
  • 作者

    Dan Wulin; K. Levin;

  • 作者单位

    James Franck Institute and Department of Physics, University of Chicago, Chicago, Illinois 60637, USA;

    James Franck Institute and Department of Physics, University of Chicago, Chicago, Illinois 60637, USA;

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  • 正文语种 eng
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  • 关键词

    diamagnetism, paramagnetism, and superparamagnetism;

    机译：反磁性;顺磁性和超顺磁性;

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