Half-polarized quantum hall states

We report a theoretical analysis of the half-polarized quantum Hall states observed in a recent experiment. Our numerical results indicate that the ground state energy of the quantum Hall nu = 2 / 3 and nu = 2 / 5 states versus spin polarization has a downward cusp at half the maximal spin polarizat...

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Bibliographic Details
Published inPhysical review letters Vol. 86; no. 7; p. 1311
Main Authors Apalkov, V M, Chakraborty, T, Pietiläinen, P, Niemelä, K
Format Journal Article
LanguageEnglish
Published United States 12.02.2001
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Summary:We report a theoretical analysis of the half-polarized quantum Hall states observed in a recent experiment. Our numerical results indicate that the ground state energy of the quantum Hall nu = 2 / 3 and nu = 2 / 5 states versus spin polarization has a downward cusp at half the maximal spin polarization. We map the two-component fermion system onto a system of excitons and describe the ground state as a liquid state of excitons with nonzero values of exciton angular momentum.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.86.1311