Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2000-07-10
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4 pages (RevTeX), 3 figures (PostScript), added references
Scientific paper
10.1103/PhysRevLett.86.1311
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 non-zero values of exciton angular momentum.
Apalkov Vadim M.
Chakraborty Tamal
Niemela Karri
Pietilainen Pekka
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