Polarized neutron scattering study on antiferromagnetic states in CeRh0.6Co0.4In5

TL;DR

This study uses polarized neutron scattering to identify multiple antiferromagnetic orders with different modulations in CeRh0.6Co0.4In5 at low temperatures, revealing complex magnetic states.

Contribution

It provides the first detailed characterization of multiple antiferromagnetic modulations in CeRh0.6Co0.4In5 using polarized neutron scattering.

Findings

Identified three distinct antiferromagnetic Bragg peaks.

All peaks occur in the spin-flip channel, indicating magnetic origin.

Revealed coexistence of multiple magnetic orders in the compound.

Abstract

Polarized neutron scattering experiments were performed on mixed compound CeRh0.6Co0.4In5 to clarify the nature of the low-temperature ordered states. Three nonequivalent Bragg peaks, characterized by the wave vectors of q_h ~ (1/2,1/2,0.3), q_1 ~ (1/2,1/2,0.4) and q_c=(1/2,1/2,1/2), were observed at 1.4 K. These Bragg peaks are found to occur entirely in spin-flip channel. This indicates that these Bragg peaks originate from the magnetic scattering, i.e., the antiferromagnetic orders with three different modulations appear in this compound.