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Ab initio study of lattice vibration and polaron properties in zinc-blende alloys
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10.1063/1.3517065
N. Bouarissa1,a) and S. Saib2
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Affiliations:
1 Department of Physics, Faculty of Science, Science and Technology Unit, King Khalid University, Abha, P.O. Box 9004, Saudi Arabia
2 Physics Department, Faculty of Science and Engineering, University of Msila, 28000 Msila, Algeria
a) Electronic mail: n_bouarissa@yahoo.fr.
J. Appl. Phys. 108, 113710 (2010)
/content/aip/journal/jap/108/11/10.1063/1.3517065
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/11/10.1063/1.3517065

Figures

FIG. 1.

Frequencies of the LO and TO phonons in ternary alloys as a function of Al content.

FIG. 2.

High-frequency and static dielectric constants in ternary alloys as a function of Al content.

FIG. 3.

Fröhlich coupling parameter in ternary alloys as a function of Al content.

FIG. 4.

Debye temperature of the LO phonon frequency in ternary alloys as a function of Al content.

FIG. 5.

Electric polarization field associated with LO modes in ternary alloys as a function of Al content.

FIG. 6.

Energy of deformation in ternary alloys as a function of Al content.

FIG. 7.

Polaron effective mass in ternary alloys as a function of Al content.

Tables

Table I.

Zone-centre phonon frequencies ( and ) in units of , high-frequency dielectric constant , and static dielectric constant for GaN, , and AlN materials.

Table II.

Calculated bowing parameters of zone-centre phonon frequencies ( and ), high-frequency dielectric constant , and static dielectric constant for zinc-blende .

Table III.

Calculated Fröhlich coupling parameter , Debye temperature of the LO phonon frequency , electric polarization field , energy of deformation , and polaron effective mass in GaN, and AlN materials.

/content/aip/journal/jap/108/11/10.1063/1.3517065
2010-12-06
2014-04-23

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