Instability towards staggered loop currents in the three-orbital model for cuprate superconductors

S. Bulut; A. P. Kampf; W. A. Atkinson

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Instability towards staggered loop currents in the three-orbital model for cuprate superconductors

机译：铜酸盐超导体在三轨道模型中对交错回路电流的不稳定性

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We present evidence for the existence of a spontaneous instability towards an orbital loop-current phase in a multiorbital Hubbard model for the CuO_2 planes in cuprates. Contrary to the previously proposed θ_Ⅱ phase with intra-unit cell currents, the identified instability is towards a staggered pattern of intertwined current loops. The orbitally resolved current pattern thereby shares its staggered character with the proposal of d-density wave order. The current pattern will cause a Fermi surface reconstruction and the opening of a pseudogap. We argue that the pseudogap phase with time-reversal symmetry breaking currents is susceptible to further phase transitions and therefore offers a route to account for axial incommensurate charge order and a polar Kerr effect in underdoped cuprates.

机译：我们提供的证据表明，在铜酸盐的CuO_2平面的多轨道Hubbard模型中，存在着对轨道回旋电流相的自发不稳定性。与先前提出的具有单元电池内部电流的θ_Ⅱ相相反，所确定的不稳定性趋向于交错的电流回路交错模式。因此，轨道分辨的电流模式与d密度波阶的提议具有交错的特征。当前的图形将导致费米表面重建和伪间隙的打开。我们认为具有时间反向对称断开电流的伪间隙相位容易受到进一步相变的影响，因此提供了一种途径来解决轴向掺杂不足的电荷顺序以及极性不足的铜酸盐中的极性克尔效应。

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来源
《Physical review》 |2015年第19期|195140.1-195140.7|共7页
作者
S. Bulut; A. P. Kampf; W. A. Atkinson;
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作者单位

Theoretical Physics Ⅲ, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany;

Theoretical Physics Ⅲ, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany;

Department of Physics and Astronomy, Trent University, Peterborough Ontario, Canada, K9J7B8;

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正文语种 eng
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theories and models of superconducting state; electronic structure;

机译：超导状态的理论和模型;电子结构;

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专利

1. Competing orders in a three-orbital model of cuprates:Is there a loop-current order? [J] . Zheng-Zao Li, Wan-Sheng Wang, Qiang-Hua Wang Physica, C. Superconductivity and its applications . 2014,第Null期

机译：在三轨道铜价模型中的竞争订单：是否存在循环当前订单？
2. Emergence of charge order in a staggered loop-current phase of cuprate high-temperature superconductors [J] . W. A. Atkinson, A. P. Kampf, S. Bulut Physical Review. B, Condensed Matter . 2016,第13期

机译：铜酸盐高温超导体交错回路电流相中电荷序的出现
3. Emergence of charge order in a staggered loop-current phase of cuprate high-temperature superconductors [J] . Atkinson W. A., Kampf A. P., Bulut S. Physical review, B . 2016,第13期

机译：铜酸盐高温超导体交错回路电流相中电荷序的出现
4. An accurate continuous-time model for current-mode boost convertors which integrates the current-loop instability scheme [C] . Dandan Jiang, Hai Nie, Chen Zhu, International Conference on Industrial Electronics and Engineering . 2015

机译：电流模式升压转换器的准确连续时间模型，其集成了电流环路不稳定方案
5. Determination of the Berry Phase in the Staggered Loop Current Model of the Pseudogap in the Cuprates [D] . Bolduc, Etienne. 2018

机译：在铜替代物中伪影孔交错环流模型中的浆果相的确定
6. Possible quantum critical behavior revealed by the critical current density of hole doped high-Tc cuprates in comparison to heavy fermion superconductors [O] . S. H. Naqib, R. S. Islam -1

机译：与重费米子超导体相比掺杂高Tc铜的空穴的临界电流密度揭示了可能的量子临界行为
7. Instability towards Staggered Loop Currents in the Three-Orbital Model for Cuprate Superconductors [O] . Bulut, S., Kampf, Arno P., Atkinson, W. A. 2015

机译：三轨道模型中交错环路电流的不稳定性用于铜酸盐超导体
8. Electron-phonon coupling and structural instabilities in the superconducting cuprates. [R] . Smith, A., Hedegard, P. 1992

机译：超导铜酸盐中的电子 - 声子耦合和结构不稳定性。

Instability towards staggered loop currents in the three-orbital model for cuprate superconductors

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