Coexistence of, and Competition between, Superconductivity and Charge-Stripe Order in La(1.6-x)Nd(0.4)Sr(x)CuO(4)

TL;DR

This study investigates the coexistence and competition between superconductivity and charge-stripe order in La(1.6-x)Nd(0.4)Sr(x)CuO(4), revealing stripe order in multiple compositions and its relationship with superconducting transition temperatures.

Contribution

It demonstrates the presence of stripe order in La(1.6-x)Nd(0.4)Sr(x)CuO(4) for x=0.15 and 0.20 and explores how this order interacts with superconductivity.

Findings

Stripe order occurs in x=0.15 and 0.20 compositions.

Superconductivity coexists with stripe order in these compositions.

Superconducting transition temperature increases as magnetic order decreases.

Abstract

Previously we have presented evidence for stripe order of holes and spins in La(1.6-x)Nd(0.4)Sr(x)CuO(4) with x=0.12. Here we show, via neutron diffraction measurements of magnetic scattering, that similar order occurs in crystals with x=0.15 and 0.20. Zero-field-cooled magnetization measurements show that all 3 compositions are also superconducting, with the superconducting transition temperature increasing as the low-temperature staggered magnetization decreases.