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Band engineering in superlattice by modulating Mg dopant
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10.1063/1.2798589
/content/aip/journal/apl/91/15/10.1063/1.2798589
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/15/10.1063/1.2798589
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Crystal structures of undoped superlattice (configuration A) and Mg modulation-doped superlattice (configuration B).

Image of FIG. 2.
FIG. 2.

(Color online) Projected densities of states for individual bilayers in configurations A (a) and B (b). The abscissa axis is the positions of the individual bilayers arranged along the [0001] direction, the ordinate axis is the energy, and the gray level represents the values of PDOS. The dash curves are guides for the eyes.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Partial charge density profiles for VBM (solid lines) and CBM (dash lines). The insets show the schematic band alignments of type-I and type-II SLs. (b) Planar-average electrostatic potentials along the [0001] direction in configurations A and B. The dashed lines represent the average values of electrostatic potentials in different layers. The dash-dotted line in (a) and (b) indicates the position of the interface.

Image of FIG. 4.
FIG. 4.

(Color online) Site-decomposed DOS in layers of configurations A and B.

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/content/aip/journal/apl/91/15/10.1063/1.2798589
2007-10-10
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Band engineering in Al0.5Ga0.5N∕GaN superlattice by modulating Mg dopant
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/15/10.1063/1.2798589
10.1063/1.2798589
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