ELECTRONIC STRUCTURE OF AMORPHOUS Co-P AND Ni-P METALLIC ALLOYS : EVIDENCE FOR SHORT-RANGE ORDER

1980 ◽  
Vol 41 (C8) ◽  
pp. C8-430-C8-432 ◽  
Author(s):  
J. Rivory ◽  
B. Bouchet ◽  
Y. Bertrand
2020 ◽  
Vol 127 (2) ◽  
pp. 025305
Author(s):  
Qi An ◽  
Matthieu Fortin-Deschênes ◽  
Guanghua Yu ◽  
Oussama Moutanabbir ◽  
Hong Guo

1991 ◽  
Vol 02 (01) ◽  
pp. 232-237 ◽  
Author(s):  
A.Ya. BELENKII ◽  
M.A. FRADKIN

The relationship between topological short-range order and a local electronic structure was analyzed in the computer model of an amorphous metal. The model, obtained by means of the original self-consistent cluster simulation procedure was studied with the use of Voronoi tesselation, the distribution of the atomic level stresses and the icosahedral order parameters. It was found that a marked correlation exists within 2 atomic parameter groups, one of which corresponds to the local dilatation and the other to the spherical symmetry distortion. The local density of electronic d-states (DOS) and the distribution of the electronic parameters was analyzed. The local electronic structure, calculated within the tight-binding approximation, appears to depend on the local atomic order by two-fold means: the interatomic distances decrease leads to the increase of the local bandwidth, and the icosahedral configuration distortion reduces the DOS at the Fermi level. The study of the local configurations stability shows, that the most stable configurations are the slightly distorted icosahedra.


1982 ◽  
Vol 21 ◽  
Author(s):  
A. Bieber ◽  
F. GAUTIER

ABSTRACTMlultiatom interactions required in the statistical models used for the study of both the stability of ordered structures in the ground state and the chemical short range order, have been computed from the electronic structure for transition metal alloys. It is shown that : i) the most important interactions coming from “d” bands are those corresponding to self-retraced paths, the contributions of compact clusters being negligible ; ii) in general the results obtained using only second order pair interactions are valid provided that the concentration dependence of the pair interactions is taken into account. However in a few peculiar cases these results may be qualitatively modified.


Pramana ◽  
2008 ◽  
Vol 70 (2) ◽  
pp. 221-235 ◽  
Author(s):  
Abhijit Mookerjee ◽  
Kartick Tarafder ◽  
Atisdipankar Chakrabarti ◽  
Kamal Krishna Saha

1977 ◽  
Vol 38 (C7) ◽  
pp. C7-285-C7-288 ◽  
Author(s):  
M. CYROT ◽  
F. CYROT-LACKMANN ◽  
M. C. DESJONQUÈRES ◽  
J. P. GASPARD

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