Cyclotron resonance studies of two-dimensional holes in strained Si1−xGex/Si quantum wells
- 29 March 1993
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 62 (13) , 1522-1524
- https://doi.org/10.1063/1.108627
Abstract
Far‐infrared magnetotransmission spectroscopy has been employed to study p‐type modulation‐doped strained Si1−xGex/Si quantum wells grown by atmospheric pressure chemical vapor deposition at magnetic fields up to 23 T. The cyclotron resonance (CR) mass of the two‐dimensional hole gas (2DHG) in a strained 7.5 nm Si0.63Ge0.37 quantum well was determined to be (0.29±0.02)m0 for a 2D hole density of 2.3×1012/cm2 at 3 K. The CR mass of 2DHGs in strained Si1−xGex is comparable to previous measurements of the CR mass of 2DHGs in strained InyGa1−yAs with similar 2D hole densities.Keywords
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