| タイトル | Room-Temperature Determination of Two-Dimensional Electron Gas Concentration and Mobility in Heterostructures |
| 著者（英） | Mena, R. A.; Haugland, E. J.; Schacham, S. E.; Alterovitz, S. A. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1993-03-15 |
| 言語 | eng |
| 内容記述 | A technique for determination of room-temperature two-dimensional electron gas (2DEG) concentration and mobility in heterostructures is presented. Using simultaneous fits of the longitudinal and transverse voltages as a function of applied magnetic field, we were able to separate the parameters associated with the 2DEG from those of the parallel layer. Comparison with the Shubnikov-de Haas data derived from measurements at liquid helium temperatures proves that the analysis of the room-temperature data provides an excellent estimate of the 2DEG concentration. In addition we were able to obtain for the first time the room-temperature mobility of the 2DEG, an important parameter to device application. Both results are significantly different from those derived from conventional Hall analysis. |
| NASA分類 | SOLID-STATE PHYSICS |
| レポートNO | 93A35198
E-7510 |
| 権利 | Copyright |
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