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Phonon deformation potentials in wurtzite GaN and ZnO determined by uniaxial pressure dependent Raman measurements
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10.1063/1.3554434
/content/aip/journal/apl/98/6/10.1063/1.3554434
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/6/10.1063/1.3554434

Figures

Image of FIG. 1.
FIG. 1.

Raman spectra of ZnO and GaN for 0 and 0.5 GPa uniaxial pressures parallel to the c-axis of the crystal. The spectra were vertically shifted for clarity.

Image of FIG. 2.
FIG. 2.

Uniaxial pressure parallel to the c-axis induced shifting behavior of all six first order phonon modes in GaN and ZnO. Solid lines represent linear least-squares fits of the data points which result the stated errors in parentheses.

Image of FIG. 3.
FIG. 3.

Uniaxial LO-TO-splitting pressure dependence of the and phonon modes in GaN and ZnO. Solid lines represent linear least-squares fits of the data points which result the stated errors in parentheses.

Tables

Generic image for table
Table I.

Experimental and theoretical values for uniaxial and hydrostatic pressure coefficients of Raman modes in GaN and ZnO along with the resulting phonon deformation potentials and in GPa. Numbers in parentheses are the errors.

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/content/aip/journal/apl/98/6/10.1063/1.3554434
2011-02-09
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Phonon deformation potentials in wurtzite GaN and ZnO determined by uniaxial pressure dependent Raman measurements
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/6/10.1063/1.3554434
10.1063/1.3554434
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