Effect of pressure on the Cu and Pr magnetism in Nd(1-x)Pr(x)Ba2Cu3O7 investigated by muon spin rotation

TL;DR

This study uses muon spin rotation to show that pressure increases the Neel temperatures of copper and praseodymium in Nd(1-x)Pr(x)Ba2Cu3O7, clarifying pressure effects on magnetism and superconductivity.

Contribution

It provides new experimental evidence that pressure positively influences magnetic ordering temperatures in Pr-substituted NdBa2Cu3O7, contrasting previous reports.

Findings

Pressure increases Neel temperatures for copper and praseodymium.

Contradicts earlier studies suggesting pressure suppresses magnetic order.

Clarifies the relationship between pressure, magnetism, and superconductivity in Pr-doped cuprates.

Abstract

The effect of pressure on the copper and praseodymium magnetic order in the system Nd(1-x)$Pr(x)Ba2Cu3$O7 with x=0.3, 0.5, 0.7, and 1 was investigated by means of the muon spin rotation (muSR) technique. It was found that the effect of pressure on the Neel temperatures of both copper and praseodymium is positive for the whole range of Pr concentrations (0.3<x<1) studied. These findings are in contrast with a number of previous reports and clarify some of the puzzles related to the effect of pressure on superconductivity and magnetism in the praseodymium-substituted R}(1-x)$Pr(x)Ba2Cu3O7 systems, where R is a rare earth element.