Further analysis of the quantum critical point of Ce$_{1-x}$La$_{x}$Ru$_{2}$Si$_{2}$

TL;DR

This paper presents new experimental data on the spin dynamics and magnetic order in Ce$_{1-x}$La$_{x}$Ru$_{2}$Si$_{2}$, highlighting the role of the Kondo effect at its quantum critical point.

Contribution

It provides new insights into the quantum critical behavior of Ce$_{1-x}$La$_{x}$Ru$_{2}$Si$_{2}$, emphasizing the significance of the Kondo effect through detailed measurements.

Findings

Behavior of relaxation rate at high temperature supports Kondo effect influence.

Variation of ordered moment correlates with Néel temperature across different x.

New data clarifies the magnetic and spin dynamics near the quantum critical point.

Abstract

New data on the spin dynamics and the magnetic order of Ce$_{1-x}$La$_{x}$Ru$_{2}$Si$_{2}$ are presented. The importance of the Kondo effect at the quantum critical point of this system is emphasized from the behaviour of the relaxation rate at high temperature and from the variation of the ordered moment with respect to the one of the N\'eel temperature for various $x$.