✦ LIBER ✦

Fundamental properties of lead and tin nanocrystals in a dielectric matrix

✍ Scribed by P. Cheyssac; R. Kofman; G. Mattei; P.G. Merli; A. Migliori; A. Stella

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 218 KB
Volume: 17
Category: Article
ISSN: 0749-6036
DOI: 10.1006/spmi.1995.1011

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✦ Synopsis

A careful inspection of the temperature evolution of (\mathrm{Pb}) and (\mathrm{Sn}) nanoparticles encased in a (\mathrm{SiO}_{\mathrm{x}}(\mathrm{x}, 1)) matrix was carried out by means of optical reflectivity and dark field electron microscopy measurements. A strong decrease of the melting temperature with size and the presence of an hysteresis cycle, which clearly separates melting and solidification temperatures, are evidenced. It is shown that an appreciable tailoring of the properties of the effective medium can be obtained.

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