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Updated: May 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
8.2K
Disorder-driven non-Fermi liquid behavior in single-crystalline Ce2Co0.8Si3.2
1Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P Nr 1410, 50-950 Wrocław, Poland.
Summary
This study investigates the Ce-based ternary silicide Ce2Co0.8Si3.2, revealing it as a Kondo paramagnet. Distinct non-Fermi liquid behaviors were observed at low temperatures, likely due to structural disorder.
Area of Science:
- Condensed matter physics
- Materials science
Background:
- Ternary silicides, particularly those based on Cerium (Ce), are of interest for their unique electronic and magnetic properties.
- The hexagonal AlB2-type structure is known to host diverse physical phenomena.
Purpose of the Study:
- To characterize the physical properties of the novel Ce-based ternary silicide, Ce2Co0.8Si3.2.
- To investigate its low-temperature magnetic and electronic behavior.
Main Methods:
- Single crystal growth of Ce2Co0.8Si3.2.
- Magnetization measurements.
- Electrical resistivity measurements.
- Heat capacity measurements.
Main Results:
- Ce2Co0.8Si3.2 crystallizes in a hexagonal AlB2-type related structure.
- The compound behaves as a Kondo paramagnet down to 0.4 K.
- Distinct non-Fermi liquid features were observed at low temperatures.
Conclusions:
- The low-temperature behavior of Ce2Co0.8Si3.2 is dominated by non-Fermi liquid characteristics.
- Structural disorder in the nonmagnetic-atom sublattice is proposed as the likely cause for these non-Fermi liquid features.
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