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Updated: Mar 5, 2026
08:55
Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
9.0K
Low temperature magnetic structure of CeRhIn5 by neutron diffraction on absorption-optimized samples
D M Fobes1, E D Bauer1, J D Thompson1
1MPA-CMMS, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States of America.
Summary
Researchers clarified the magnetic structure of the heavy fermion material cerium rhodium indium (CeRhIn5). They confirmed its helical nature and precisely measured its ordered magnetic moment using neutron-based techniques.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Magnetism
Background:
- The ambient pressure magnetic structure of heavy fermion material CeRhIn5 has been debated.
- Key questions include its helical or spin density wave nature and the ordered magnetic moment's magnitude.
Purpose of the Study:
- To resolve the debate surrounding the magnetic structure of CeRhIn5.
- To precisely determine the ordered magnetic moment of CeRhIn5.
- To confirm the helical nature and chirality of the magnetic structure.
Main Methods:
- Utilized a single crystal sample of CeRhIn5 optimized for hot neutron experiments.
- Employed neutron absorption optimization to minimize interference from Rhodium (Rh) and Indium (In).
- Performed spherical neutron polarimetry measurements.
Main Results:
- Reported a precise ordered magnetic moment of [Formula: see text].
- Confirmed the helical nature of the magnetic structure.
- Identified a single chiral domain within the material.
Conclusions:
- The magnetic structure of CeRhIn5 is confirmed to be helical.
- The precise magnitude of the ordered magnetic moment has been determined.
- The identification of a single chiral domain provides further insight into the material's magnetic properties.
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