Infrared transmission and photoconductivity of the 2 deg in a GaAs/AlGaAs heterojunction

R.E. Horstman, J. Wolter, R.W. van der Heijden, G.L.J.A. Rikken, H. Sigg

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


Cyclotron resonance is investigated in infrared transmission and in photoconductivity measurements on a 2 DEG in a GaAs/AlGaAs heterojunction. The photoresistivity signal, corrected for the magnetic field dependent sensitivity, shows a narrower (20%) cyclotron resonance linewidth (FWHM) than observed in infrared transmission, indicating a shorter scattering time of the localized as compared to the non-localized electrons. The effective masses as deduced from the positions of the cyclotron resonance are the same within 1% for both types of experiments.

Original languageEnglish
Title of host publicationProceedings of the 17th International Conference on Low Temperature Physics, LT-17.; Karlsruhe, W Ger
PublisherNorth-Holland Publishing Company
Number of pages2
Editionpt 2
ISBN (Print)0444869107
Publication statusPublished - 1984
Externally publishedYes


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