Infrared Absorption in Si-Si1-xGex-Si Quantum Wells |
| G. Fishman Laboratoire de Spectrométrie Physique, UMR 5588, UJF Grenoble 1-CNRS, BP87, 38402 Saint Martin d'Hères Cedex, France and R. Oszwałdowski Institute of Physics UMK, Grudziądzka 5, 87-100 Toruń, Poland |
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| We use the eight-band k·p model to describe the infrared inter-subband absorption in Si-Si1-xGex-Si quantum wells, which takes explicitly into account the Γ'25(Γ8++Γ7+ in the double group) valence band and the second conduction band Γ'2(Γ7ˉ). We then obtain an accurate description of mixing of the S wave function with the valence band functions. |
| DOI: 10.12693/APhysPolA.92.753 PACS numbers: 73.20.Dx, 78.66.-w, 85.30.Vw |