Artificial scaling laws of the dynamical magnetic susceptibility in heavy-fermion systems

TL;DR

This paper demonstrates how improper data treatment can lead to false scaling laws in the dynamical magnetic susceptibility of heavy-fermion systems, emphasizing careful analysis to avoid misleading conclusions.

Contribution

It reveals the origins of artificial scaling laws in heavy-fermion systems and clarifies how to distinguish genuine physical scaling from artifacts.

Findings

Artificial scaling laws can arise from data mishandling.

Proper analysis prevents misinterpretation of susceptibility data.

The study uses Ce$_{0.925}$La$_{0.075}$Ru$_{2}$Si$_{2}$ as an example.

Abstract

We report here how artificial, thus erroneous, scaling laws of the dynamical magnetic susceptibility can be obtained when data are not treated carefully. We consider the example of the heavy-fermion system Ce$_{0.925}$La$_{0.075}$Ru$_{2}$Si$_{2}$ and we explain how different kinds of artificial scaling laws in $E/T^\beta$ can be plotted in a low temperature regime where the dynamical susceptibility is nearly temperature independent.