Abstract
We report the observation of a two-dimensional (2D) hole gas in Ga 0.47In0.53As/InP heterojunction grown by metalorganic chemical-vapor deposition. In a sample with a total hole density ptot =7.6×1011 cm-2 a Hall mobility μH =10500 cm2/Vs was reached at 4.2 K. Angle-dependent Shubnikov-de Haas measurements as well as quantized Hall effect observations confirmed the two-dimensionality of the system. In contrast to the case of the 2D hole gas in GaAs/AlGaAs, low-temperature persistent photoconductivity was observed, significantly increasing the hole density at the interface.
Original language | English (US) |
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Pages (from-to) | 2453-2456 |
Number of pages | 4 |
Journal | Journal of Applied Physics |
Volume | 60 |
Issue number | 7 |
DOIs | |
State | Published - 1986 |
ASJC Scopus subject areas
- General Physics and Astronomy