Classical group theory adapted to the mechanism of Pt3Ni nanoparticle growth: the role of W(CO)6 as the “shape-controlling” agent

2016 ◽  
Vol 18 (1) ◽  
pp. 75-78
Author(s):  
M. Radtke ◽  
A. Ignaszak
Keyword(s):  
Thermal Decomposition ◽  
Group Theory ◽  
Crystal Growth ◽  
Classical Group ◽  
Metal Carbonyl ◽  
Nanoparticle Growth ◽  
Epitaxial Crystal Growth ◽  
Shape Controlling

The transition of Pt3Ni cubes into cuboctahedral structures proceeds via epitaxial crystal growth over the metal carbonyl template below the thermal decomposition of W(CO)6.

Surfactant-Mediated Si/Ge Epitaxial Crystal Growth

1996 ◽  
Vol 448 ◽  
Author(s):  
Eunja Kim ◽  
Chan Wuk OH ◽  
Young Hee Lee
Keyword(s):  
Molecular Dynamics ◽  
Crystal Growth ◽  
Ab Initio ◽  
Crucial Role ◽  
Flat Surface ◽  
Exchange Process ◽  
Epitaxial Crystal Growth

AbstractWe investigate the kinetic role of a surfactant in the epitaxial Si/Ge crystal growth using ab initio molecular dynamics approach. We examine the previously suggested dimer-exchange mechanisms and find that kinetics plays a crucial role in determining the exchange process. We further find that the diffusion of adatoms on an island in the presence of a surfactant is quite different from the dimer-exchange process on a flat surface.

Microscopic role of a surfactant in epitaxial crystal growth

1997 ◽  
Vol 501 ◽  
Author(s):  
Seung Mi Lee ◽  
Young Hee Lee
Keyword(s):  
Molecular Dynamics ◽  
Crystal Growth ◽  
Ab Initio ◽  
Clean Surface ◽  
Group V ◽  
Epitaxial Crystal Growth ◽  
And Diffusion

ABSTRACTWe have investigated the kinetic role of a surfactant in the epitaxial crystal growth of Si/Ge using an ab initio molecular dynamics approach. We find that adsorption and diffusion of an adatom on monohydride Si(001) surface is drastically altered from that on a clean surface in several ways. We particularly emphasize the role of H as a surfactant, and this is further compared to typical group V materials.

scholarly journals The role of step edge diffusion in epitaxial crystal growth

1999 ◽  
Vol 439 (1-3) ◽  
pp. 191-198 ◽  
Author(s):  
S. Schinzer ◽  
M. Kinne ◽  
M. Biehl ◽  
W. Kinzel
Keyword(s):  
Crystal Growth ◽  
Step Edge ◽  
Epitaxial Crystal Growth

Stress Driven Instability in Non-Hydrostatically Stressed Crystals and its Role in the Problems of Crystalline Thin Films

1991 ◽  
Vol 239 ◽  
Author(s):  
Michael A. Grinfeld
Keyword(s):  
Thin Films ◽  
Surface Tension ◽  
Crystal Growth ◽  
Solid Phase ◽  
Elastic Solids ◽  
Phase Boundaries ◽  
Crystalline Film ◽  
Physical Mechanisms ◽  
Epitaxial Crystal Growth

ABSTRACTIt was demonstrated in [1] that, in the absence of surface tension aflat boundary of non-hydrostatically stressed elastic solids is always unstable with respect to “mass rearrangement”. The physical mechanisms of the rearrangement can be different, for instance, a)melting-freezing or vaporization-sublimation processes at liquid-solid or vapor-solid phase boundaries, b»surface diffusion of particles along free or interfacial boundaries, b)adsorption-desorbtion of the atoms in epitaxial crystal growth, etc… We discuss the role of this instability in the problems of epitaxy and, in particular, the opportunities delivered by this instability for explanation of the recently discovered phenomena of the dislocation-free Stranski-Krastanow pattern of growth [2]. These phenomena cannot be interpreted in the framework of traditional viewpoints since, according to the classical theory, the Stranski-Krastanow pattern is a result of proliferation of the misfit dislocation appearing on the interface “crystalline film-substratum” [3].

Role of silver compounds in promoting the thermal decomposition of ammonium perchlorate

1986 ◽  
Vol 1 (3) ◽  
pp. 235-251 ◽  
Author(s):  
Andrew K. Galwey ◽  
Mohamed A. Mohamed ◽  
David S. Cromie
Keyword(s):  
Thermal Decomposition ◽  
Ammonium Perchlorate ◽  
Silver Compounds

The role of anhydrous zinc nitrate in the thermal decomposition of the zinc hydroxy nitrates Zn5(OH)8(NO3)2·2H2O and ZnOHNO3·H2O

2007 ◽  
Vol 180 (4) ◽  
pp. 1171-1179 ◽  
Author(s):  
Timothy Biswick ◽  
William Jones ◽  
Alexandra Pacuła ◽  
Ewa Serwicka ◽  
Jerzy Podobinski
Keyword(s):  
Thermal Decomposition ◽  
Zinc Nitrate

scholarly journals Fundamental Homomorphism Theorems for Neutrosophic Extended Triplet Groups

Symmetry ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 321 ◽  
Author(s):  
Mehmet Çelik ◽  
Moges Shalla ◽  
Necati Olgun
Keyword(s):  
Group Theory ◽  
Significant Role ◽  
Classical Group ◽  
Algebraic Structures ◽  
Algebraic Systems ◽  
Homomorphism Theorem ◽  
Special Cases ◽  
Isomorphism Theorems

In classical group theory, homomorphism and isomorphism are significant to study the relation between two algebraic systems. Through this article, we propose neutro-homomorphism and neutro-isomorphism for the neutrosophic extended triplet group (NETG) which plays a significant role in the theory of neutrosophic triplet algebraic structures. Then, we define neutro-monomorphism, neutro-epimorphism, and neutro-automorphism. We give and prove some theorems related to these structures. Furthermore, the Fundamental homomorphism theorem for the NETG is given and some special cases are discussed. First and second neutro-isomorphism theorems are stated. Finally, by applying homomorphism theorems to neutrosophic extended triplet algebraic structures, we have examined how closely different systems are related.

scholarly journals On the Mechanism of Cuprate Crystal Growth: The Role of Mixed Metal Carbonates

2015 ◽  
Vol 25 (29) ◽  
pp. 4700-4707 ◽  
Author(s):  
David C. Green ◽  
Rebecca Boston ◽  
Stefan Glatzel ◽  
Martin R. Lees ◽  
Stuart C. Wimbush ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Mixed Metal ◽  
Metal Carbonates
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