Magnetic field dependence of charge stripe order in La2-xBaxCuO4 (x~1/8)

TL;DR

This study investigates how magnetic fields influence charge stripe order in La2-xBaxCuO4, revealing that magnetic fields enhance charge order correlations and compete with superconductivity.

Contribution

It provides detailed experimental evidence of magnetic field effects on charge stripe order in La2-xBaxCuO4, highlighting the competition with superconductivity.

Findings

Charge order correlation length increases with magnetic field above ~5T.

Magnetic field enhances static charge stripe order.

Charge order competes with superconducting state.

Abstract

We have carried out a detailed investigation of the magnetic field dependence of charge ordering in La2-xBaxCuO4 (x~1/8) utilizing high-resolution x-ray scattering. We find that the charge order correlation length increases as the magnetic field greater than ~5T is applied in the superconducting phase (T=2K). The observed unusual field dependence of the charge order correlation length suggests that the static charge stripe order competes with the superconducting ground state in this sample.