Remarks about the Zeeman splitting in quantum dots and single atom transistors

TL;DR

This paper proposes an empirical formula to determine the Kondo temperature in quantum dots and single atom transistors using Zeeman splitting, enhancing understanding of magnetic effects in nanoscale systems.

Contribution

It introduces a new empirical formula for calculating the Kondo temperature from Zeeman splitting in quantum systems, incorporating experimental temperature and Lande factor.

Findings

The formula aligns with previous spectroscopy methods.

It allows for more accurate Kondo temperature estimation.

Applicable to quantum dots and single atom transistors.

Abstract

An empirical formula is proposed to calculate the Kondo temperature in quantum point contacts from the Zeeman splitting. A similar formula was used in the point-contact spectroscopy (PCS) method to obtain from the Zeeman splitting of the Kondo peak in the characteristics of the classical Kondo alloys AuFe and CuMn [1]. Using this formula, it is possible to find the Kondo temperature taking into account the temperature of the experiment and Lande factor of the compounds.