The short range order surface structure of Au(110) in the range of the (1×2) to (1×1) phase transition

1987 ◽  
Vol 188 (1-2) ◽  
pp. L685-L691 ◽  
Author(s):  
H. Derks ◽  
J. Möller ◽  
W. Heiland
2000 ◽  
Vol 85 (3-4) ◽  
pp. 557-562 ◽  
Author(s):  
Stuart A. Hayward ◽  
Jaime del Cerro ◽  
Ekhard K.H. Salje

1991 ◽  
Vol 157 (4-5) ◽  
pp. 306-308 ◽  
Author(s):  
I.V. Paukov ◽  
M.N. Popova ◽  
B.V. Mill'

2006 ◽  
Vol 20 (11) ◽  
pp. 649-654 ◽  
Author(s):  
O. SHANKER

In this work we consider new forms of the 1-d long range potential close to the thermodynamic limit. We also look at the potential close to the transition from long range order to short range order. We find an interesting duality between the two potentials, based on Dyson's sufficiency conditions for the existence of a phase transition. An important conclusion of our study is that the very long range nature of the potential causes Monte Carlo simulations to reach an apparent, but misleading, convergence. Thus, one needs to exercise great caution in deriving conclusions from such studies.


1986 ◽  
Vol 77 ◽  
Author(s):  
Kathie E. Newman ◽  
Bing-Lin Gu ◽  
P. A. Fedders

ABSTRACTThe semiconducting alloy (GaSb)1−x Ge2x is an example of a mixed crystalline alloy that undergoes a phase transition between its constituent crystal types. The order-disorder transition modifies both the long-range and short-range order in the alloy as a function of composition x. By using the Kikuchi approximation, the bond probabilities are calculated and then compared with EXAFS data. These calculations show that the EXAFS data are consistent with the existence in (GaSb)1−x Ge2x of “wrong” bonds of Ga-Ga and Sb-Sb. The theory also predicts a violation of Vegard's Law for the behavior of the mean bond length as a function of composition x.


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