Theoretical investigation of size and shape effects on the melting temperature of ZnO nanostructures

2007 ◽  
Vol 18 (43) ◽  
pp. 435710 ◽  
Author(s):  
G Guisbiers ◽  
S Pereira
Keyword(s):  
Melting Temperature ◽  
Theoretical Investigation ◽  
Zno Nanostructures ◽  
Size And Shape ◽  
Shape Effects

Thermodynamics: Nano vs. macro

2009 ◽  
Vol 81 (10) ◽  
pp. 1921-1930 ◽  
Author(s):  
Michel Wautelet ◽  
Aram S. Shirinyan
Keyword(s):  
Phase Diagrams ◽  
Melting Temperature ◽  
Two Phase ◽  
Size And Shape ◽  
Shape Effects ◽  
Long Time ◽  
Definition Of ◽  
Classical Thermodynamics

Ordinary macroscopic thermodynamics is applied when the number of atoms in the studied systems is "large". Conditions where nanosystems are "large" with respect to thermodynamics definition are first discussed. In the thermodynamical regime, size and shape effects are known to be important. It has been known for a long time that the melting temperature of nanosystems decreases when their size decreases. A generalization of this leads to the conclusion that phase diagrams are also size- and shape-dependent. In nanosystems, the number of atoms is limited. This differs from classical thermodynamics, where the number of atoms is assumed to be unlimited. The consequences of this difference for the definition of phase diagrams are discussed. In particular, the liquidus and solidus lines have to be carefully defined. The structure of the two-phase nanoparticles also plays a role in the calculation of the phase diagrams.

Vortex configurations in mesoscopic superconducting triangles: Finite-size and shape effects

2008 ◽  
Vol 83 (1) ◽  
pp. 17008 ◽  
Author(s):  
H. J. Zhao ◽  
V. R. Misko ◽  
F. M. Peeters ◽  
S. Dubonos ◽  
V. Oboznov ◽  
...  
Keyword(s):  
Finite Size ◽  
Size And Shape ◽  
Shape Effects

Size and shape effects on complexes of fullerenes with carbon nanorings: C50 and C76 as [10]CPP and [6]CPPA guests

2018 ◽  
Vol 30 (3) ◽  
pp. 647-656 ◽  
Author(s):  
Iván González-Veloso ◽  
Jesús Rodríguez-Otero ◽  
Enrique M. Cabaleiro-Lago
Keyword(s):  
Size And Shape ◽  
Shape Effects ◽  
Carbon Nanorings
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