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Impact of the misfit dislocations on two-dimensional electron gas mobility in semi-polar AlGaN/GaN heterostructures
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10.1063/1.3688047
/content/aip/journal/apl/100/8/10.1063/1.3688047
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/8/10.1063/1.3688047
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic interface of the semi-polar AlGaN/GaN heterostructure, together with a misfit dislocation line.

Image of FIG. 2.
FIG. 2.

Scattering time associated with misfit dislocations vs the angle θ between the initial vector k i and the x-axis, with the dislocation density Ndis = 2 × 105 cm−1 and the 2DEG sheet density Ns = 5 × 1012 cm−2. The inset shows a typical anisotropic scattering event, in which the scattering wave vector q has no component of qy.

Image of FIG. 3.
FIG. 3.

2DEG mobility associated with the misfit dislocation lines oriented along the y-axis versus the angle α between the electric field and the x-axis, with the dislocation density and the 2DEG density being taken as Ndis = 2 × 105 cm−1 and Ns = 5 × 1012 cm−2, respectively.

Image of FIG. 4.
FIG. 4.

2DEG mobility associated with the misfit dislocations versus the 2DEG density Ns at low temperature limit, with the applied electric field along the x-axis.

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/content/aip/journal/apl/100/8/10.1063/1.3688047
2012-02-21
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Impact of the misfit dislocations on two-dimensional electron gas mobility in semi-polar AlGaN/GaN heterostructures
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/8/10.1063/1.3688047
10.1063/1.3688047
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