Cyclotron absorption in two-dimensional electron systems monitored by terahertz time-domain spectroscopy
We have measured the far-infrared cyclotron absorption of a two-dimensional electron systems (2DES), formed in a GaAs/Al 0.33 Ga 0.67 As heterojunction, using transmission-mode terahertz (THz) time-domain spectroscopy. The frequency of cyclotron absorption was proportional to applied magnetic field...
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Published in | 2007 Joint 32nd International Conference on Infrared and Millimeter Waves and the 15th International Conference on Terahertz Electronics pp. 488 - 489 |
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Main Authors | , , , , , , |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
01.09.2007
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Subjects | |
Online Access | Get full text |
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Summary: | We have measured the far-infrared cyclotron absorption of a two-dimensional electron systems (2DES), formed in a GaAs/Al 0.33 Ga 0.67 As heterojunction, using transmission-mode terahertz (THz) time-domain spectroscopy. The frequency of cyclotron absorption was proportional to applied magnetic field (B-field) across the measurement range, and from this data, the electron effective mass was extracted. The temperature-dependence of the cyclotron absorption was also studied between 1.5-150 K, allowing the dynamics of electron scattering in the 2D electron system to be determined. |
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ISBN: | 1424414385 9781424414383 |
ISSN: | 2162-2027 |
DOI: | 10.1109/ICIMW.2007.4516595 |