Shibun Tsuda, Minh-Hai Nguyen, Daiju Terasawa, Akira Fukuda, Anju Sawada
Published 2013-10-02Version 1
We investigate the resistance enhancement state (RES) where the magnetoresistance of the $\nu = 2/3$ fractional quantum Hall state (FQHS) is increased with dynamic nuclear spin polarization (DNP) induced by a large electric current. After inducing DNP, we measure the temperature dependence of the magnetoresistance by a small current over a short period of time. We find that the FQHS makes a phase transition to an insulating state. By measuring the Hall resistance in the insulating state, we find that the RES exhibits a quantized Hall resistance. We discuss the RES in association with the Anderson localization.
Comments: 5 pages, 6 figures
Local Charge of the nu=5/2 Fractional Quantum Hall State
Fractional quantization of Hall resistance as a consequence of mesoscopic feedback
Relation between Hall resistance and the diamagnetic moment of Fermi electrons
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