Millimeter wave transmission spectroscopy of gated two-dimensional hole systems

K. Stone, R. R. Du, M. J. Manfra, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We developed a differential transmission to study cyclotron resonance of GaAs/Al xGa 1-xAs two-dimensional hole samples. The technique utilizes a modulated AuPd gate isolated by a Si 3 N 4 dielectric from the sample, which is irradiated opposite the gate by millimeter waves ranging from 2 to 40 GHz. This technique effectively removes the background signal and yields a hole effective mass of 0. 41 m e with a cyclotron scattering time of ∼20 ps, consistent with the previous results using different techniques.

Original languageEnglish (US)
Article number192104
JournalApplied Physics Letters
Issue number19
StatePublished - May 7 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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