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Updated: May 23, 2026
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Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Local moment ferromagnetism in CeRu2Ga2B
R E Baumbach1, T Shang, M Torrez
1MPA-CMMS Los Alamos National Laboratory, Los Alamos, NM 87545, USA. rbaumbach@lanl.gov
Summary
CeRu(2)Ga(2)B exhibits ferromagnetic order below 16.3 K, with a second-order phase transition. Low-temperature data suggest minimal hybridization between Ce f-electron and conduction electron states, indicating spin disorder scattering.
Area of Science:
- Condensed matter physics
- Materials science
- Magnetism
Background:
- Understanding the magnetic properties of cerium-based intermetallic compounds is crucial for developing new magnetic materials.
- CeRu(2)Ga(2)B is a novel compound whose magnetic behavior requires detailed investigation.
Purpose of the Study:
- To investigate the magnetic ordering and electronic properties of CeRu(2)Ga(2)B.
- To determine the nature of the magnetic phase transition and the role of electronic hybridization.
Main Methods:
- Magnetization, specific heat, and electrical resistivity measurements were performed on polycrystalline and single-crystal samples.
- Analysis of temperature-dependent data to identify magnetic ordering and phase transitions.
Main Results:
- Local moment ferromagnetic order was observed with a Curie temperature (T(C)) of 16.3 K for polycrystals and 15.4 K for single crystals.
- Specific heat measurements confirmed a second-order phase transition.
- Low-temperature specific heat indicated weak hybridization between Ce f-electron and conduction electron states.
- Electrical resistivity showed significant spin disorder scattering above T(C).
Conclusions:
- CeRu(2)Ga(2)B displays intrinsic ferromagnetic behavior.
- The observed differences between polycrystal and single-crystal results suggest that crystalline disorder influences magnetic development.
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