CHEN Gui-chu, FAN Guang-han. Study on Long-wavelength Optical Phonons in Hexagonal InAlGaN Crystals[J]. Chinese Journal of Luminescence, 2012,33(8): 808-811
CHEN Gui-chu, FAN Guang-han. Study on Long-wavelength Optical Phonons in Hexagonal InAlGaN Crystals[J]. Chinese Journal of Luminescence, 2012,33(8): 808-811 DOI: 10.3788/fgxb20123308.0808.
The optical phonons are investigated experimentally by means of Raman scatterning and by the modified random element isodisplacement (MREI) model in hexagonal quaternary nitride-based crystals. A one-mode behavior of E
1
and A
1
branches is presented in our calculated results. The calculated A
1
(LO) branches are almost consistent with our experimental data for In
x
Ga
0.45-
x
Al
0.55
N crystals
and Cros's experimenatal results for In
x
Al
0.42-
x
Ga
0.58
N crystals.
关键词
InAlGaN光学声子拉曼散射MREI
Keywords
InAlGaNoptical phononRaman scatteringMREI
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