Neutron scattering study of the long-range ordered state in CeRu2Al10
Jean-Michel Mignot, Julien Robert, Gilles Andr\'e, Alexandre M., Bataille, Takashi Nishioka, Riki Kobayashi, Masahiro Matsumura, Hiroshi, Tanida, Daiki Tanaka, Masafumi Sera
TL;DR
This study uses neutron scattering to investigate the magnetic order in CeRu2Al10, revealing a long-range antiferromagnetic state below 27 K with characteristic spin dynamics.
Contribution
It provides the first detailed neutron scattering analysis of the magnetic ordering and spin excitations in CeRu2Al10, identifying a spin gap and specific magnetic wave vector.
Findings
Long-range antiferromagnetic order below 27 K
Presence of a spin gap and a peak at 8 meV in the spectral response
Suppression of magnetic features above T0
Abstract
Elastic and inelastic neutron scattering measurements have been performed on powder and single-crystal samples of orthorhombic CeRu2Al10. The order forming below T0 = 27 K was identified as a long-range antiferromagnetic state with the wave vector k = (1,0,0). The magnetic spectral response in the ordered phase, measured on powder, is characterized by a spin gap and a pronounced peak at 8 meV, whose Q dependence suggests a magnetic origin. Both features are suppressed when temperature is raised to T0, and a conventional relaxational behavior is observed at 40 K. This peculiar spin dynamics is discussed in connection with recent magnetization results for the same compound.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.