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Decay of zone-center phonons in GaN with , , and symmetries
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10.1063/1.2561930
/content/aip/journal/jap/101/5/10.1063/1.2561930
http://aip.metastore.ingenta.com/content/aip/journal/jap/101/5/10.1063/1.2561930

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Typical Raman spectra of GaN observed at different scattering geometries at . The solid curve is for backscattering along the (0001) crystal growth axis, the dashed curve is for backscattering from the epilayer edge (see inset).

Image of FIG. 2.
FIG. 2.

(Color online) Dependence of phonon energies (a) and linewidths (b) on temperature. Curves are theory-based fits to data. Contributions of thermal expansion and phonon decay to the overall shifts are plotted separately. Phonon lifetime versus temperature is shown (b).

Image of FIG. 3.
FIG. 3.

(Color online) Dependence of phonon energies (a) and linewidths (b) on temperature, similar to Fig. 2.

Image of FIG. 4.
FIG. 4.

(Color online) Dependence of phonon energies (a) and linewidths (b) on temperature, similar to Fig. 2.

Image of FIG. 5.
FIG. 5.

(Color online) Dependence of phonon energies (a) and linewidths (b) on temperature, similar to Fig. 2.

Image of FIG. 6.
FIG. 6.

(Color online) Dependence of phonon energies (a) and linewidths (b) on temperature, similar to Fig. 2.

Tables

Generic image for table
Table I.

Fitting results for Raman phonons. All values are from fits to the temperature dependences.

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/content/aip/journal/jap/101/5/10.1063/1.2561930
2007-03-15
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Decay of zone-center phonons in GaN with A1, E1, and E2 symmetries
http://aip.metastore.ingenta.com/content/aip/journal/jap/101/5/10.1063/1.2561930
10.1063/1.2561930
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