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Título

Temperature dependence of surface acoustic wave propagation velocity in InxGa1-xN films obtained by high-resolution brillouin spectroscopy: Determination of temperature coefficient of frequency

Autor Jiménez Riobóo, R. J. ; Prieto, C. ; Cuscó, Ramón ; Artús, Lluís ; Boney, C.; Bensaoula, A.; Yamaguchi, T.; Nanishi, Yasushi
Fecha de publicación 2013
EditorInstitute of Physics Publishing
Citación Applied Physics Express 6(5): 056601 (2013)
ResumenTemperature-dependent surface acoustic wave (SAW) propagation velocity and temperature coefficient of frequency (TCF) have been determined for the first time in InxGa1-xN alloys by means of high-resolution Brillouin spectroscopy (HRBS). HRBS offers an alternative way of determining TCF. The obtained TCF values present a non-linear behavior with the In concentration. TCF of pure InN (-13.75 ppm/K) is similar to those of AlN and GaN (-19 and -17.7 ppm/K, respectively). InxGa1-xN samples exhibit frequency values that are very stable against temperature changes, which makes InxGa1-xN a good candidate for current SAW-based technological applications.
Versión del editorhttp://dx.doi.org/10.7567/APEX.6.056601
URI http://hdl.handle.net/10261/93531
DOI10.7567/APEX.6.056601
Identificadoresdoi: 10.7567/APEX.6.056601
issn: 1882-0778
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