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(Color online) A schematic showing samples of one period of ErAs:InGaAs/InGaAlAs with different doping levels.
(Color online) Thermal conductivity of superlattices with different doping levels [no codoping (red circles), codoping of (blue circles), codoping of (green circles), and codoping of (pink circles)]. The thermal conductivity of InGaAs and ErAs:InGaAs is shown for reference.8
(Color online) (a) Cross-plane electrical conductivity (theory); (b) cross-plane total (experimental data) and electronic thermal conductivities [based on Eq. (1)] at vs carrier concentration. In calculating the cross-plane electrical conductivity, two cases were considered: when lateral momentum during thermionic emission is conserved (C), and when lateral momentum is not conserved (NC).
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