The Local Atomic Structure in Hg0.80Cd0. 20Te

1993 ◽  
Vol 307 ◽  
Author(s):  
J. P. Quintana

ABSTRACTLocal atomic arrangements in Hg0.80Cd0. 20Te were investigated by measuring the diffuse x-ray scattering at two different energies near the HgLIII absorption edge to yield intensity due only to Hg-Hg, Hg-Te, and Hg-Cd pair interactions. The data were separated into short range order and displacement intensities. Simulation revealed ordered regions with 3:1 Hg-Cd near neighbor configurations. The Hg-Te length is contracted.

2012 ◽  
Vol 173 ◽  
pp. 164-171 ◽  
Author(s):  
Nourhane Ben Zineb ◽  
Abir Chebaane ◽  
Ferid Hammami ◽  
Mohamed Bahri ◽  
Salah Nasr

1990 ◽  
Vol 195 ◽  
Author(s):  
J. Weissmüller ◽  
J. Jing ◽  
A. Krämer ◽  
R. Birringer ◽  
U. Gonser ◽  
...  

ABSTRACTA new method of preparing amorphous solids is presented. X-ray diffraction, thermal stability and Mgssbauer spectroscopy give evidence for an atomic structure with reduced short–range order in Si75Auz5 and Pd72FeloSil8 alloys prepared by this method.


2000 ◽  
Vol 294-296 ◽  
pp. 299-302 ◽  
Author(s):  
Hiroshi Abe ◽  
Nobumichi Tamura ◽  
D Le Bolloc’h ◽  
Simon C Moss ◽  
Yoshie Matsuo ◽  
...  

1989 ◽  
Vol 03 (14) ◽  
pp. 1105-1111
Author(s):  
TAHIR ABBAS ◽  
NAVEED AHMAD ◽  
FARID AKHTAR KHAWAJA ◽  
ISHTIAQ AHMAD

Diffuse X-ray scattering intensity was measured in polycrystalline samples of Ni–Nb system. From this diffuse scattering intensity, short-range order parameters and size effect parameters were calculated. The absolute value of short-range order parameters suggest a local order present in this alloy. The ordering potential was calculated on the basis of the statistical pseudopotential theory of ordering and it was found that the calculations take into account the experimentally observed sign of the short-range order parameters.


2016 ◽  
Vol 119 (15) ◽  
pp. 154103
Author(s):  
Kohki Nagata ◽  
Atsushi Ogura ◽  
Ichiro Hirosawa ◽  
Tomoyuki Suwa ◽  
Akinobu Teramoto ◽  
...  

1990 ◽  
Vol 205 ◽  
Author(s):  
S. B. Rivers ◽  
W. N. Unertl ◽  
H. H. Hung ◽  
K. S. Liang

Abstractwe report grazing-incidence x-ray scattering measurements of the order-disorder phase transition near a Au-rich Cu3Au (001) surface. The bulk transition temperature TB = 648 K is lower than for stoichiometric Cu3Au(001). Surface ordering persists above TB in a layer several monolayers thick up to Ts = 667 K. Kinetics of the ordering were studied by quenching from Ts + 9 K to final temperatures of TF = 661 K and 645 K. Short-range order is established in the bulk within the quench time and does not appear to change subsequently. The bulk short-range order differs from that reported for stoichiometric Cu3Au. For TB < TF = 661 K < TS, the (100) in-plane diffraction beam intensity grows approximately as t1/4 for t > 1000 s and the width continues to narrow. For TF = 645 K < TB, power law growth is not observed for the longest times studied. In both cases the growth is substantially slower than predicted.


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