High Sensitive Imaging of Atomic Arrangement of Ge Clusters Buried in a Si Crystal by X-ray Fluorescence Holography

2006 ◽  
Vol 45 (6A) ◽  
pp. 5248-5253
Author(s):  
Shuji Kusano ◽  
Shinichiro Nakatani ◽  
Kazushi Sumitani ◽  
Toshio Takahashi ◽  
Yoshitaka Yoda ◽  
...  
Keyword(s):  
X Ray ◽  
Atomic Arrangement

The Structure of Amorphous Platinum Disulfide as Studied by Anomalous X-ray Scattering

1994 ◽  
Vol 49 (11) ◽  
pp. 1031-1036 ◽  
Author(s):  
Masatoshi Saito ◽  
Makoto Wakeshima ◽  
Nobuaki Sato ◽  
Takeo Fujino ◽  
Yoshio Waseda ◽  
...  
Keyword(s):  
Variational Method ◽  
Least Squares ◽  
Absorption Edge ◽  
Structural Unit ◽  
Precipitation Process ◽  
Interference Function ◽  
X Ray ◽  
Atomic Arrangement ◽  
X Ray Scattering ◽  
Ray Scattering

Abstract Anomalous X-ray scattering (AXS) has been applied to study the structure of amorphous plati­ num disulfide, Pt1-xS2, prepared by the precipitation process. The local atomic arrangement in amorphous Pt1-xS2 was determined by the least-squares variational method so as to reproduce the experimental differential interference function at the Pt Lm absorption edge by the AXS method as well as the ordinary interference function by Mo K α. The structural unit in amorphous Pt1-xS2 is found to be a PtS6 octahedron, similar to that in crystalline PtS2. These octahedra share both their corners and edges, while only edge-sharing linkages occur in crystalline PtS2

Local order hypotheses and atomic arrangement in the glassy alloy Cu0.20As0.35Te454545by X-ray diffraction

1994 ◽  
Vol 29 (12) ◽  
pp. 3316-3322 ◽  
Author(s):  
C. Wagner ◽  
J. Vázquez ◽  
P. Villares ◽  
R. Jiménez-Garay
Keyword(s):  
Glassy Alloy ◽  
Local Order ◽  
X Ray Diffraction ◽  
X Ray ◽  
Atomic Arrangement

scholarly journals The effect of thermal agitaion on atomic arrangement in alloys—II

1935 ◽  
Vol 151 (874) ◽  
pp. 540-566 ◽  
Keyword(s):  
High Temperatures ◽  
Experimental Work ◽  
Low Temperatures ◽  
Theoretical Treatment ◽  
X Ray ◽  
Atomic Arrangement ◽  
Metal Atoms ◽  
Theoretical Investigations ◽  
The Subject ◽  
Kinetics Of

The transformations between a disordered arrangement of the metal atoms in an alloy at high temperatures and an ordered arrangement of the atoms at low temperatures have formed the subject of many experimental and theoretical investigations. The process of segregation into regular positions was first envisaged by Tammann in 1919. It was proved to take place in the gold-copper and other alloy systems by Johannson and Linde by X-ray investigation. Theoretical treatments of the problem have been given in papers by Borelius, Johannson, and Linde, Gorsky, and Dehlinger and Graf, and the same authors have published a large amount of experimental work on this type of transformation in the Au-Cu system. Some experiments on order-disorder transformations in the Fe-Al system, carried out by Bradley and Jay in this laboratory, led us to examine the kinetics of the change, and we recently published a paper in these Proceedings dealing with various aspects of it. Since publishing this paper, we have become aware that our theoretical treatment has in several respects a closer parallelism to those of Borelius, Gorsky, and Dehlinger than we realized at the time of writing it. We shall try to make a proper acknowledgment in the present paper.

3D Atomic Arrangement at Functional Interfaces Inside Nanoparticles by Resonant High-Energy X-ray Diffraction

2015 ◽  
Vol 7 (41) ◽  
pp. 23265-23277 ◽  
Author(s):  
Valeri Petkov ◽  
Binay Prasai ◽  
Sarvjit Shastri ◽  
Tsan-Yao Chen
Keyword(s):  
High Energy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Atomic Arrangement

A study of short-range order and atomic arrangement in the glassy alloy Cu0.03Ge0.20Te0.77 by X-ray diffraction

1993 ◽  
Vol 33 (3-4) ◽  
pp. 245-253 ◽  
Author(s):  
M. Casas-Ruiz ◽  
J. Vázquez ◽  
R.A. Ligero ◽  
R. Jiménez-Garay
Keyword(s):  
Short Range ◽  
Short Range Order ◽  
Glassy Alloy ◽  
Range Order ◽  
X Ray Diffraction ◽  
X Ray ◽  
Atomic Arrangement

The Crystal Structures of U2Cu3 Al and UCUAl2, and their Relationship with Some Other Phases in the System U-Cu-Al

1980 ◽  
Vol 35 (9) ◽  
pp. 1162-1165 ◽  
Author(s):  
Ž. Blažina ◽  
Z. Ban
Keyword(s):  
Crystal Structures ◽  
Trial And Error ◽  
Isothermal Sections ◽  
X Ray ◽  
Atomic Arrangement ◽  
Tie Lines ◽  
Trial And Error Method ◽  
Probable Space ◽  
Error Method ◽  
Ternary Structure

X-ray investigations of a great number of samples along the specifically chosen tie-lines in the isothermal sections of the system U-Cu-Al (800 °C) indicated the existence of two new ordered ternary phases, i.e. U2Cu3Al and UCuAl2.The first one is hexagonal (S. G. P63/mmc, MgZn2-type), with a = 5.065 ± 0.005 Å, c = 8.307 ± 0.005 Å and c/a = 1.640. The ordered atomic arrangement of all atoms, as confirmed by trial and error method is consistent with a rather uncommon superstructure of the MgZn2-type.UCuAl2 is tetragonal, a = 3.857 ± 0.005 A, c = 8.736 ± 0.005 A, c/a = 2.265, probable space group is I4/mmm, and represents an ordered ternary structure variant of the TiAl3 type.The crystal structures of these two new phases were correlated, in terms of stacking sequences, with those which were identified in this system previously.

Crystal structure and physical properties of sophiite, Zn2(SeO3)Cl2, a new mineral

1992 ◽  
Vol 56 (383) ◽  
pp. 241-245 ◽  
Author(s):  
T. F. Semenova ◽  
I. V. Rozhdestvenskaya ◽  
S. K. Filatov ◽  
L. P. Vergasova
Keyword(s):  
Crystal Structure ◽  
Physical Properties ◽  
Single Crystal ◽  
Phase Transformations ◽  
Structural Aspect ◽  
Experimental Results ◽  
New Mineral ◽  
X Ray ◽  
Atomic Arrangement ◽  
Thermal Phase

AbstractThe crystal structure of sophiite, Zn2(SeO3)Cl2 (a = 10.251(4), b = 15.223(2), c = 7.666(5) Å, Z = 8) was solved in space group Pccn from single crystal X-ray data, and refined to R = 0.053 for 666 Fo > 4oFo. The mineral belongs to layer compounds. The threefold coordinated Se atom is at the apex of a pyramid, the base of which is formed by three O atoms; Se-O = 1.69 Å. Zn cations occupy two positions with distorted tetrahedral and octahedral coordinations. In the tetrahedra, Zn cations are surrounded by two O (2.02 Å) and two Ci (2.224 Å) atoms. Zn octahedra contain four O atoms (2.07 Å) and two CI atoms (2.701 Å). The atomic arrangement is characterized by rings containing two Se pyramids linked by their corners to two Zn tetrahedra. The rings are linked by their edges and corners to Zn octahedra to form layers parallel to (010). The layers are interconnected by residual Van der Waals bonds.Experimental results on thermal phase transformations and deformations, crystal optics and other physical properties of sophiite are presented. A structural aspect of their anisotropy is discussed.

Local-order hypotheses and atomic arrangement in the glassy alloy As0.45Se0.05Te0.50 by X-ray diffraction

1993 ◽  
Vol 15 (7) ◽  
pp. 995-1008
Author(s):  
J. Vázquez ◽  
R. A. Ligero ◽  
M. Casas-Ruiz ◽  
R. Jiménez-Garay
Keyword(s):  
Glassy Alloy ◽  
Local Order ◽  
X Ray Diffraction ◽  
X Ray ◽  
Atomic Arrangement
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