论文标题

涡流中涡流驱动的周期性和多个磁磁性振荡

Vortex-driven periodic and aperiodic magnetoresistance oscillations in cuprates

论文作者

Lan, Changshuai, Zhao, Chuanwen, Yi, Xin, Chen, Qiao, Zhao, Xinming, Wu, Dong, Yan, Chengyu, Wang, Shun

论文摘要

对超导和电荷排序之间相互作用的研究有助于解决高温超导体中的配对机制。最近,一些电阻振荡研究引发了这样的猜测,即远程充电订购的远距离固定量可能会在不足的高TC超导体中出现巨大的网格尺寸,可能会出现。但是,光谱研究并未追溯到这种远程电荷顺序。在这里,我们通过研究了不足的BI2SR2CACU2O8+δ薄片中的磁振荡,阐明了关于神秘的远程充电顺序的传输和光谱研究之间的分歧。受到观察的启发,即振荡从周期性发展到掺杂水平下降的振荡,我们得出的结论是,可以通过涡旋和超导环之间的相互作用来产生磁振荡,而旋转环与随机分布的较不限制的水坑的相互作用,同时又不是是必需的。

The study of the interaction between superconductivity and charge ordering is helpful to resolve the pairing mechanism in high-temperature superconductors. Recently, several resistance oscillations studies trigger the speculation that a long-range charge ordering, with an enormous mesh size of several tens of nanometer, can possibly emerge in underdoped high Tc superconductor. However, spectroscopy studies have not traced this kind of long-range charge ordering. Here, we clarify the disagreement between the transport and spectroscopy studies on the mysterious long-range charge ordering by investigating the magneto-oscillations in underdoped Bi2Sr2CaCu2O8+δ flakes. Inspired by the observation that the oscillations evolve from a periodic to an aperiodic one with decreasing doping level, we conclude that the magneto-oscillations can be generated by the interaction between vortices and superconducting loops that enclose randomly distributed underdoped puddles while an assumption of long-range charge ordering is not necessary.

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