Evolution of Shubnikov–de Haas oscillations under photoexcitation in the regime of the radiation-induced zero-resistance states

✍ Scribed by R.G. Mani

• Book ID: 104084957
• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 297 KB
• Volume: 40
• Category: Article
• ISSN: 1386-9477
• DOI: 10.1016/j.physe.2007.08.132

✦ Synopsis

We examine the variation of the amplitude of Shubnikov-de Haas (SdH) oscillations under the influence of photoexcitation in the regime of the radiation-induced zero-resistance states in GaAs/AlGaAs devices. We find that the SdH amplitude scales linearly with the average background resistance in the vicinity of the radiation-induced resistance minima. The results show that the SdH amplitude vanishes in proportion to the background resistance at the centers of the zero-resistance states.