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Sign Reversal of the Quantum Hall Effect and Helicoidal Magnetic-Field-Induced Spin-Density Waves in Organic Conductors
N. Dupuis, V. M. Yakovenko
Within the framework of the quantized nesting model, we study the effect of umklapp scattering on the magnetic-field-induced spin-density-wave (SDW) phases which are experimentally…
Collective modes in a system with two spin-density waves: the `Ribault' phase of quasi-one-dimensional organic conductors
N. Dupuis, V. M. Yakovenko
We study the long-wavelength collective modes in the magnetic-field-induced spin-density-wave (FISDW) phases experimentally observed in organic conductors of the Bechgaard salts fa…
Temperature evolution of the quantum Hall effect in the FISDW state: Theory vs Experiment
Victor M. Yakovenko, Hsi-Sheng Goan, Jonghwa Eom +1
We discuss the temperature dependence of the Hall conductivity in the magnetic-field-induced spin-density-wave (FISDW) state of the quasi-one-dimensional Bechgaard salts (…
Hopf invariant for long-wavelength skyrmions in quantum Hall systems for integer and fractional fillings
K. Sengupta, Victor. M. Yakovenko
We show that a Hopf term exists in the effective action of long-wavelength skyrmions in quantum Hall systems for both odd integer and fractional filling factors , whe…