DETERMINATION OF SHORT RANGE ORDER (SRO) PARAMETERS FROM EXAFS PAIR DISTRIBUTION FUNCTIONS OF OXIDE AND SILICATE SOLID SOLUTIONS

1986 ◽  
Vol 47 (C8) ◽  
pp. C8-845-C8-848
Author(s):  
G. A. WAYCHUNAS ◽  
W. A. DOLLASE ◽  
C. R. ROSS
Keyword(s):  
Solid Solutions ◽  
Short Range ◽  
Short Range Order ◽  
Distribution Functions ◽  
Range Order ◽  
Pair Distribution Functions

scholarly journals Analysis of short-range order in Cu3Au using X-ray pair distribution functions

2017 ◽  
Vol 125 ◽  
pp. 15-26 ◽  
Author(s):  
L.R. Owen ◽  
H.Y. Playford ◽  
H.J. Stone ◽  
M.G. Tucker
Keyword(s):  
Short Range ◽  
Short Range Order ◽  
Distribution Functions ◽  
Range Order ◽  
X Ray ◽  
Pair Distribution Functions

Short-range order in amorphous FeTb

1990 ◽  
Vol 48 (4) ◽  
pp. 120-121
Author(s):  
M. Tewes ◽  
J. Zweck ◽  
H. Hoffmann
Keyword(s):  
Short Range ◽  
Short Range Order ◽  
Structural Data ◽  
Distribution Functions ◽  
Range Order ◽  
Electron Diffraction Data ◽  
Storage Media ◽  
Mean Dimension ◽  
The Mean ◽  
Pair Distribution Functions

The importance of amorphous rare-earth/transition-metal (Re-TM) alloys for use as magneto-optic (MO) storage media has been shown first in 1973. First atomic structural data of amorphous Fe2Tb were given in 1974 and compared with those of a crystalline counterpart, which is the well-known Laves phase. Significant differences of short range order (sro) in amorphous and crystalline Fe2Tb have been found. Similiar results were given in 1986 for a composition Fe79Tb21, to be used for MO-recording.In this work we present pair distribution functions (PDF’s) determined from electron diffraction data for amorphous FeTb alloys. It has been shown that Fourier transformation of the experimental observed diffraction intensities gives the original infinite lattice of an investigated (crystalline) specimen multiplied by its selfcorrelation-function. Therefore the PDF approaches zero for r-values greater than the distance ro representing the mean dimension of a crystal.

Investigations of short range order in amorphous Fe-B alloys

1988 ◽  
Vol 46 ◽  
pp. 458-459
Author(s):  
J. Zweck ◽  
H. Hoffmann
Keyword(s):  
Physical Properties ◽  
Short Range ◽  
Short Range Order ◽  
Amorphous State ◽  
High Resolution Electron Microscopy ◽  
Near Neighbor ◽  
Distribution Functions ◽  
Range Order ◽  
Resolution Electron ◽  
Pair Distribution Functions

Amorphous metallic alloys exhibit a large variety of physical properties that often differ from their crystalline counterparts of the same composition. Currently, metallic glasses exist which, to name only a few examples, are either very non-abrasive, soft magnetic and magneto optical, hard, flexible, or resistant to corrosion. These properties are of great technical importance and there are many applications that are based on amorphous alloys. Since physical properties are related to the structure of a material, a better knowledge of the ‘structure’ of the amorphous state is of great interest. In this work, we present pair distribution functions determined from electron diffraction results for amorphous Fe-B alloys of different compositions. From the pair distribution functions one can obtain information about near neighbor distances, the range of a short range order (SRO) for different compositions, and of similarities to crystalline counterparts. These findings will also be compared to results obtained with the use of high resolution electron microscopy (HREM).

A NEUTRON DIFFRACTION DETERMINATION OF SHORT RANGE ORDER IN A Ni63.7Zr36.3 GLASS

1985 ◽  
Vol 46 (C8) ◽  
pp. C8-87-C8-92 ◽  
Author(s):  
R. Bellissent ◽  
J. Bigot ◽  
Y. Calvayrac ◽  
S. Lefebvre ◽  
A. Quivy
Keyword(s):  
Neutron Diffraction ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Diffraction Determination

On the short-range order in silver-rich Ag-Cd solid solutions

1972 ◽  
Vol 3 (6) ◽  
pp. 1607-1611 ◽  
Author(s):  
J. Waldman ◽  
M. B. Bever
Keyword(s):  
Solid Solutions ◽  
Short Range ◽  
Short Range Order ◽  
Range Order

Short-Range Order in Binary Solid Solutions The Change of Electronic Density of States on Ordering

1994 ◽  
Vol 186 (2) ◽  
pp. 465-480 ◽  
Author(s):  
P. V. Petrenko ◽  
Yu. E. Grabovskii ◽  
N. P. Kulish ◽  
N. A. Melnikova ◽  
S. P. Repetskii
Keyword(s):  
Density Of States ◽  
Solid Solutions ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Electronic Density ◽  
Electronic Density Of States
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