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- W2000259923 abstract "Abstract The magneto‐transport measurements, carried out at magnetic fields up to 11 T and in the temperature range between 1.8 K and 300 K, are used to investigate the scattering mechanisms in GaN/InN/AlN double heterojunctions. Theoretical modeling is based on a variational approach to solving Boltzmann transport equation. It is found that dislocation scattering is the dominant scattering mechanisms at low temperatures because of the large lattice mismatch with the substrate and hence the high density of dislocations in these material systems. Nevertheless, InN epilayers are characterized by a high background carrier density, probably associated with unwanted impurities. Therefore, we also included in our calculations the ionized impurity scattering. However, the effect of ionized impurity scattering as well as the acoustic phonon scattering, remote‐ background‐ionized impurity scattering, and interface roughness scattering on electron mobility are much smaller than that of dislocation scattering. The dislocation densities, in samples with InN thicknesses of 0.4, 0.6 and 0.8 µm, are then determined from the best fit to the experimental data for the low‐temperature transport mobility (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)" @default.
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- W2000259923 date "2012-01-13" @default.
- W2000259923 modified "2023-09-24" @default.
- W2000259923 title "Determination of dislocation densities in InN" @default.
- W2000259923 doi "https://doi.org/10.1002/pssc.201100079" @default.
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