Deformation potentials of the E1(TO) and E2 modes of InN

Darakchieva, V.; Paskov, P.P.; Valcheva, E.; Paskova, T.; Monemar, B.; Schubert, M.; Lu, H.; Schaff, W.J.
May 2004
Applied Physics Letters;5/3/2004, Vol. 84 Issue 18, p3636
Academic Journal
The deformation potentials of the E1(TO) and E2 modes of InN are determined by combining infrared spectroscopic ellipsometry, Raman scattering, and x-ray diffraction measurements, and using a reported value of the mode Grüneisen parameter. The deformation potentials are obtained for two sets of stiffness constants. Strain-free values of the InN E1(TO) mode of 477.9 cm-1 and of the E2 mode of 491.1 cm-1 have been determined.© 2004 American Institute of Physics.


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