TITLE:
Theory of Zero-Resistance States Generated by Radiation in GaAs/AlGaAs
AUTHORS:
Shigeji Fujita, Kei Ito, Akira Suzuki
KEYWORDS:
Superconducting (Zero-Resistance) States; Composite-Boson (Fermion); B-Linear Hall Resistivity; Phonon (Fluxon) Exchange
JOURNAL NAME:
Journal of Modern Physics,
Vol.3 No.7,
July
18,
2012
ABSTRACT: Mani observed zero-registance states similar to those quantum-Hall-effect states in GaAs/AlGaAs but without the Hall resistance plateaus upon the application of radiations [R. G. Mani, Physica E 22, 1 (2004)]. An interpretation is presented. The applied radiation excites “holes”. The condensed composite (c)-bosons formed in the excited channel create a superconducting state with an energy gap. The supercondensate suppresses the non-condensed c-bosons at the higher energy, but it cannot suppress the c-fermions in the base channel, and the small normal current accompanied by the Hall field yeilds a B-linear Hall resistivity.