New Resonances Along with Cyclotron Resonance in Heterostructures

TL;DR

This paper reports the discovery of new spin-dependent resonances in heterostructures that occur alongside traditional cyclotron resonance, with frequencies influenced by electron spin and magnetic field, revealing complex spin-related phenomena.

Contribution

It introduces a theoretical model predicting new spin-dependent resonances in heterostructures, extending the understanding of cyclotron resonance phenomena.

Findings

New resonances depend on electron spin and occur at specific frequencies.

Resonance frequencies vary with magnetic field and electron spin states.

Energy variation follows a square root dependence on 2D electron systems.

Abstract

The usual cyclotron resonance occurs at \omega_c=eB/m*c which is independent of spin. The new resonances depend on spin. The new resonances occur at \omega_{c\pm}=(1/2)g_{\pm}eB/m*c where (1/2)g_{\pm}= {\it l}+(1/2)\pm s/(2{\it l}+1). The energy in the centre of two new frequencies varies as the square root of the 2-dimensional electrons due to spin excess in the Gaussian model. The frequencies \omega_{c\pm} are linearly proportional to the magnetic field except near crossing point where the linear combination of wave functions must be made.