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arXiv 1005.0601cond-mat.str-el
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空穴掺杂铜氧化物超导体的中子散射

Neutron scattering in the hole-doped cuprate superconductors

J. M. P. Carmelo

摘要:

中子共振能量的出现是非常规超导体的共同特征。而在La $_{2-x}$ Sr $_x$ CuO $_4$(LSCO)的非弹性中子散射中观察到的低温无公度尖峰对应于围绕$[π,π]$对称分布的四个棒。在这里,它表明,最近引入的中子共振能量和LSCO低温无公度尖峰的虚电子对量子液体内产生的简单和密切相关的自旋过程。我们的结果表明,在LSCO的中子共振能量不发生或对应于一个较低的能量$\approx 17$ meV。

英文摘要:

The occurrence of a neutron resonance energy is a common feature of unconventional superconductors. In turn, the low-temperature incommensurate sharp peaks observed in the inelastic neutron scattering of La$_{2-x}$Sr$_x$CuO$_4$ (LSCO) correspond to four rods symmetrically distributed around $[π,π]$. Here it is shown that within the virtual-electron pair quantum liquid recently introduced the neutron resonance energy and the LSCO low-temperature incommensurate sharp peaks are generated by simple and closely related spinon processes. Our results indicate that in LSCO the neutron resonance energy either does not occur or corresponds to a lower energy $\approx 17$ meV.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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