|Author||Hörmann, N. G. ♦ Gross, A. ♦ Rohrer, J. ♦ Kaghazchi, P.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ AMBIENT TEMPERATURE ♦ DENSITY FUNCTIONAL METHOD ♦ NANOPARTICLES ♦ NANOWIRES ♦ STABILIZATION ♦ SURFACE ENERGY ♦ TIN|
|Abstract||Structures of Sn nanoparticles and nanowires are studied using density functional theory in conjunction with thermodynamic considerations. Besides the low-temperature α and room-temperature β phases, the high-temperature γ phase is considered. Results show that at ambient temperatures for sizes smaller than 50 nm, metallic β- and γ-Sn nanoparticles are more stable than semimetallic α-Sn ones because of their lower surface energies. Moreover, very small Sn nanostructures, exemplified by nanowires, are expected to exhibit the γ phase even at 0 K.|
|Learning Resource Type||Article|
|Publisher Place||United States|
|Journal||Applied Physics Letters|
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