Theory of Zero-Resistance States Generated by Radiation in GaAs/AlGaAs

• 作者: Akira Suzuki Kei Ito Shigeji Fujita
• 来源期刊: 现代物理(英文)
• 学科: 医学
• 关键词: SUPERCONDUCTING (Zero-Resistance) States Composite-Boson (Fermion) B-Linear HALL RESISTIVITY PHONON (Fluxon) Exchange
• 年，卷（期）: 2012,（7）
• 页码范围: 546-552
• 页数: 7页
• 分类号: R73

摘要

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.