Evolution from a non-Fermi liquid Kondo lattice to intermediate valence behaviour in CeRhSn(1-x)In(x)

Area of Science:

• Condensed Matter Physics
• Materials Science
• Solid State Physics

Background:

• CeRhSn(1-x)In(x) is an intermetallic and strongly correlated electron system.
• CeRhSn exhibits non-Fermi liquid behavior, while CeRhIn is a valence fluctuating system.

Purpose of the Study:

• Determine the hybridization energy between f electron and conduction electron states, V(cf).
• Investigate the influence of V(cf) on the ground state properties of CeRhSn(1-x)In(x).

Main Methods:

• Experimental investigations of magnetic and electric transport properties.
• Specific heat measurements.
• Electronic structure analysis.
• Analysis based on the Anderson model for a periodic Kondo lattice.

Main Results:

• Characterization of magnetic and transport properties across the CeRhSn(1-x)In(x) series.
• Determination of the hybridization energy V(cf).
• Insights into the ground state properties influenced by V(cf).

Conclusions:

• The study provides a comprehensive understanding of the electronic properties of CeRhSn(1-x)In(x).
• Results are compared with doped Ce-based Kondo insulators, offering broader implications for strongly correlated electron systems.