Temperature dependence of spin polarizations at higher Landau Levels

TL;DR

This paper investigates how temperature affects spin polarizations at different Landau levels, revealing distinct behaviors at various filling factors and providing theoretical predictions consistent with experimental data.

Contribution

It offers new insights into the temperature dependence of spin polarization at higher Landau levels and predicts unique behavior at specific filling factors.

Findings

Spin polarization at ν=3 is less affected by higher Landau levels.

At ν=8/3, the system remains fully spin polarized even at low Zeeman energies.

Results align well with recent experimental observations.

Abstract

We report our results on temperature dependence of spin polarizations at $\nu=1$ in the lowest as well as in the next higher Landau level that compare well with recent experimental results. At $\nu=3$, except having a much smaller magnitude the behavior of spin polarization is not much influenced by higher Landau levels. In sharp contrast, for filling factor $\nu=\frac83$ we predict that unlike the case of $\nu=\frac23$ the system remains fully spin polarized even at vanishingly small Zeeman energies.