Vortex-driven periodic and aperiodic magnetoresistance oscillations in cuprates

TL;DR

This paper investigates magnetoresistance oscillations in underdoped cuprates, revealing that vortex interactions with superconducting loops explain the phenomena without requiring long-range charge order.

Contribution

It clarifies the origin of resistance oscillations in cuprates, showing they result from vortex interactions with superconducting loops rather than long-range charge ordering.

Findings

Oscillations evolve from periodic to aperiodic with doping

Vortex interactions with superconducting loops explain oscillations

Long-range charge order is not necessary to explain the data

Abstract

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+{\delta} 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.