ISSN:
1572-9540
Schlagwort(e):
size effects
;
nanoparticles
;
197Au Mössbauer
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract We present a detailed Mössbauer study of a series of Au and Pt particles in the size range from 1 to 17 nm. All measured spectra can be explained consistently with a refined model, in which the Mössbauer isomer shift varies in the inner core of a small metallic particle due to size effects. The large surface/volume ratio makes surface effects, like screening of considerable importance and even the so-called quantum-size effect may have an influence. The size evolution of the electronic properties of the particles is also discussed.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1023/A:1012621601811
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