Temperature dependence of the spin polarization in the fractional quantum Hall effects

Abstract

Using a Hamiltonian formulation of Composite Fermions that I recently developed with R. Shankar, I compute the dependence of the spin polarization on the temperature for the translationally invariant fractional quantum Hall states at $\nu =1/3$ and $\nu =2/5$. I compare my results to experiments at $\nu =1/3$ and find reasonably good agreement.

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