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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
Disorder-driven low-temperature anomalies in single-crystalline Ce2Co0.4Rh0.4Si3.2
1Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Wrocław, Poland. m.szlawska@int.pan.wroc.pl
Summary
This study investigated the cerium-based solid solution Ce2Co0.4Rh0.4Si3.2. The material remained paramagnetic at low temperatures, with anomalies linked to crystallographic disorder.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Solid-State Chemistry
Background:
- Cerium-based intermetallic compounds are known for their diverse magnetic and electronic properties.
- Solid solutions offer tunable characteristics by varying elemental composition.
- Understanding the interplay of magnetic ordering and structural features is crucial.
Purpose of the Study:
- To investigate the magnetic and electronic properties of the novel cerium-based solid solution Ce2Co0.4Rh0.4Si3.2.
- To determine the magnetic ordering temperature and explore the influence of crystallographic disorder.
- To characterize the low-temperature behavior of this specific solid solution.
Main Methods:
- Single-crystal X-ray diffraction for structural analysis.
- Magnetic susceptibility measurements across a range of temperatures and magnetic fields.
- Electrical resistivity measurements as a function of temperature.
- Heat capacity measurements to probe thermodynamic properties.
Main Results:
- The solid solution Ce2Co0.4Rh0.4Si3.2 was successfully synthesized and characterized as a single crystal.
- Paramagnetic behavior was confirmed down to 0.4 Kelvin, indicating no magnetic ordering in this temperature range.
- Anomalous features were observed in magnetic and transport properties at low temperatures.
- These anomalies are attributed to intrinsic crystallographic disorder within the compound's structure.
Conclusions:
- The cerium-based solid solution Ce2Co0.4Rh0.4Si3.2 exhibits paramagnetic behavior down to very low temperatures.
- Crystallographic disorder plays a significant role in the observed low-temperature anomalies.
- Further investigation is warranted to fully understand the impact of disorder on the electronic and magnetic properties of such materials.
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