Half-polarized quantum hall states |
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| Authors: | Apalkov V M Chakraborty T Pietiläinen P Niemelä K |
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| Institution: | Max-Planck-Institut fur Physik Komplexer Systeme, Dresden, Germany. |
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| Abstract: | 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. |
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