Microwave-Induced Resistance Oscillations Versus Magnetoabsorption in Two-Dimensional Electron Systems: Role of Temperature Articles uri icon

publication date

  • August 2010

issue

  • 31

volume

  • 21

International Standard Serial Number (ISSN)

  • 0957-4484

Electronic International Standard Serial Number (EISSN)

  • 1361-6528

abstract

  • Magnetoabsorption and microwave-induced resistance oscillations in two-dimensional electron systems are calculated with the same theoretical approach, the microwave-driven Larmor orbit model. This theory, which first was developed to obtain microwave-induced zero resistance states and resistance oscillations, permits us also to calculate the microwave magnetoabsorption. We study the influence of temperature on magnetoabsorption, obtaining a progressive quenching of the absorption peak as temperature increases. We compare this quenching with the similar behavior that the microwave-induced magnetoresistance oscillations present. This quenching is explained in terms of electron&-acoustic phonons scattering for both effects.