Phys. Rev. Lett. 101, 146803 (2008) [4 pages]Quantum Hall Ferromagnetic States and Spin-Orbit Interactions in the Fractional RegimeReceived 28 April 2008; published 1 October 2008 The competition between the Zeeman energy and the Rashba and Dresselhaus spin-orbit couplings is studied for fractional quantum Hall states by including correlation effects. A transition of the direction of the spin polarization is predicted at specific values of the Zeeman energy. We show that these values can be expressed in terms of the pair-correlation function, and thus provide information about the microscopic ground state. We examine the particular examples of the Laughlin wave functions and the 5/2-Pfaffian state. We also include effects of the nuclear bath. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.146803
DOI:
10.1103/PhysRevLett.101.146803
PACS:
73.43.Cd, 71.70.Ej, 71.70.Jp, 75.10.−b
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