Structure and dynamics at the aluminum solid–liquid interface: An ab initio simulation

2000 ◽  
Vol 113 (14) ◽  
pp. 5935-5946 ◽  
Author(s):  
Ben J. Jesson ◽  
Paul A. Madden
2005 ◽  
Vol 04 (05n06) ◽  
pp. 995-999
Author(s):  
ABHISHEK CHAUDHURI ◽  
DEBASISH CHAUDHURI ◽  
SURAJIT SENGUPTA

We show how interfaces may be induced in materials using external fields. The structure and the dynamics of these interfaces may then be manipulated externally to achieve desired properties. We discuss three types of such interfaces: an Ising interface in a nonuniform magnetic field, a solid–liquid interface and an interface between a solid and a smectic like phase. In all of these cases we explicitly show how small size, leading to atomic-scale discreteness and stiff constraints produce interesting effects which may have applications in the fabrication of nanostructured materials.


2006 ◽  
Vol 59 (6) ◽  
pp. 376 ◽  
Author(s):  
Matteo Palma ◽  
Giuseppina Pace ◽  
Olivier Roussel ◽  
Yves Geerts ◽  
Paolo Samorí

We describe a STM investigation of the structure and dynamics of alkylated thiotriphenylene monolayers at the solid–liquid interface. This discotic system was found to pack into two coexisting structural motifs on the basal plane of graphite. The interpretation of the intra-molecular contrast in the STM images showed a large contribution of electronic levels localized on the sulfur atoms bridging the conjugated core with the aliphatic side-chains. The temporal evolution of domain boundaries in a polycrystalline monolayer, explored by recording series of subsequent STM images, revealed an Ostwald ripening phenomenon, namely coarsening in two-dimensional molecular polycrystals.


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