Low temperature magnetic structure of CeRhIn${}_5$ by neutron diffraction on absorption-optimized samples

Abstract

Two aspects of the ambient pressure magnetic structure of heavy fermion material CeRhIn${}_5$ have remained under some debate since its discovery: whether the structure is indeed an incommensurate helix or a spin density wave, and what is the precise magnitude of the ordered magnetic moment. By using a single crystal sample optimized for hot neutrons to minimize neutron absorption by Rh and In, here we report an ordered moment of $m=0.54(2){\mu }_B$. In addition, by using spherical neutron polarimetry measurements on a similar single crystal sample, we have confirmed the helical nature of the magnetic structure, and identified a single chiral domain.

References in corpus (4)

• Hidden Magnetism and Quantum Criticality in the Heavy Fermion Superconductor CeRhIn5
• Quantum and classical criticality in a dimerized quantum antiferromagnet
• The quantum critical point in CeRhIn_5: a resistivity study
• The magnitude of the magnetic exchange interaction in the heavy fermion antiferromagnet CeRhIn${}_5$

Cited by in corpus (5)

• Imitation of spin density wave order in Cu${}_3$Nb${}_2$O${}_8$
• Investigation of the commensurate magnetic structure in heavy fermion CePt2In7 using magnetic resonant X-ray diffraction
• Origin of the 30 T transition in CeRhIn${}_5$ in tilted magnetic fields
• Robust Fermi-Surface Morphology of CeRhIn${}_5$ across the Putative Field-Induced Quantum Critical Point
• Magnetic structure of Cd-doped CeIrIn${}_5$