Cross-plan Si∕SiGe superlattice acoustic and thermal properties measurement by picosecond ultrasonics

Autor:	Jean-Michel Rampnoux, Younes Ezzahri, W. Claeys, Stefan Dilhaire, Stéphane Grauby
Rok vydání:	2007
Předmět:	Diffusion (acoustics) Transducer Materials science Thermal conductivity business.industry Nondestructive testing Superlattice Thermal General Physics and Astronomy Optoelectronics Interfacial thermal resistance Picosecond ultrasonics business
Zdroj:	Journal of Applied Physics. 101:013705
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.2403236
Popis:	A pump-probe thermoreflectance technique is used for the nondestructive evaluation of thermal and acoustic properties of Si∕Si0.7Ge0.3 superlattice (SL) at room temperature. In particular, this technique allows the determination of the metal transducer/SL thermal boundary resistance, the SL cross-plan thermal conductivity, and the longitudinal sound velocity inside the SL. Several effects related to the extraction of these properties are studied, including the metal transducer thickness and electron diffusion inside it.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77fb69fa670e02859c26d4aa4b54bffb https://doi.org/10.1063/1.2403236 Zobrazit plný text záznamu