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Critical shell thickness for InAs-AlxIn1−x As(P) core-shell nanowires
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10.1063/1.4769735
/content/aip/journal/jap/112/12/10.1063/1.4769735
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/12/10.1063/1.4769735

Figures

Image of FIG. 1.
FIG. 1.

Geometry of the core-shell nanowire of length L, radius R, core radius Rc , and shell thickness t in the () coordinate system. Also shown is the location of a dislocation with Burgers vector .

Image of FIG. 2.
FIG. 2.

Plot of (a) , (b) , and (c) for an InAs-Al0.1In0.9As core-shell nanowire with nm and t = 10 nm. Solid lines are for the wurtzite (WZ) structure, while dashed lines are for the zincblende (ZB) structure. Red lines denote the core, while blue lines denote the shell.

Image of FIG. 3.
FIG. 3.

Plot of the critical Al x As shell thickness as a function of InAs core diameter for different alloy parameters, x. Also shown are data points from nanowires grown previously denoted A, B, and C.

Image of FIG. 4.
FIG. 4.

SAD pattern of InAs-Al x As core-shell nanowires along the zone axis for (a) 0.53, 3.6% mismatch, (b) 0.36, 2.5% mismatch, and (c) 0.20, 1.3% mismatch. A, B, C from Figure 3 correspond to (a), (b), and (c) in this figure.

Image of FIG. 5.
FIG. 5.

SAD pattern of InAs-Al x P core-shell nanowires along the zone axis for (a) 0.53, 7.1% mismatch, (b) 0.36, 5.8% mismatch.

Image of FIG. 6.
FIG. 6.

Plot of the critical Al x As shell thickness as a function of InAs core diameter for different alloy parameters, x for zincblende materials.

Tables

Generic image for table
Table I.

Non-zero components of the stiffness tensor cij . Shown are the tabulated zincblende23 and calculated wurtzite values. Components of the stiffness tensor for ternary alloys Al x P and Al x As were computed using Vegard's law.23

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/content/aip/journal/jap/112/12/10.1063/1.4769735
2012-12-19
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Critical shell thickness for InAs-AlxIn1−xAs(P) core-shell nanowires
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/12/10.1063/1.4769735
10.1063/1.4769735
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