Atomic-Scale Structure of Nanocrystals by High-Energy X-ray Diffraction and Atomic Pair Distribution Function Analysis:  Study of FexPd100-x(x= 0, 26, 28, 48) Nanoparticles

2007 ◽  
Vol 111 (2) ◽  
pp. 714-720 ◽  
Author(s):  
V. Petkov ◽  
T. Ohta ◽  
Y. Hou ◽  
Y. Ren
Author(s):  
Milen Gateshki ◽  
Qing Chen ◽  
Lian-Mao Peng ◽  
Peter Chupas ◽  
Valeri Petkov

High-energy X-ray diffraction and atomic Pair Distribution Function analysis are employed to determine the atomic-scale structure of titanate nanotubes. It is found that the nanotube walls are built of layers of Ti–O


2012 ◽  
Vol 26 (18) ◽  
pp. 1250118 ◽  
Author(s):  
M. GHASEMIFARD ◽  
GH. H. KHORRAMI

The three-dimensional atomic-scale structure around Mg , Nb , Ti and Zr atoms in a series ferroelectric material such as PMN, PZT, PMN-PZT and PMN-PT has been studied using X-ray diffraction ( MoK α), Rietveld refinement and the atomic pair distribution function (PDF) technique. The structure and particle size of the powders was determined by X-ray diffraction and TEM observation. The studies show that the materials are disordered at nanometer length distances. The three-dimensional atomic ordering in PMN-based nanopowders may well be described by a cubic structure of the perovskite type, similar to that occurring in the bulk crystals. At the end, the analyzed data show that the sizes of ZrO 6 octahedral are larger than TiO 6 octahedral.


RSC Advances ◽  
2016 ◽  
Vol 6 (56) ◽  
pp. 50479-50486 ◽  
Author(s):  
U. P. Gawai ◽  
H. A. Khawal ◽  
M. R. Bodke ◽  
K. K. Pandey ◽  
U. P. Deshpande ◽  
...  

The combination of SCXRD and atomic PDF is a potential tool for the standardization of atomic scale structures of nanomaterials. This article describes the essential approach and application to ZnS polymorphs.


2013 ◽  
Vol 15 (22) ◽  
pp. 8480 ◽  
Author(s):  
Xiaohao Yang ◽  
Ahmad S. Masadeh ◽  
James R. McBride ◽  
Emil S. Božin ◽  
Sandra J. Rosenthal ◽  
...  

1999 ◽  
Vol 590 ◽  
Author(s):  
V. Petkov ◽  
S. J. L. Billinge ◽  
J. Heising ◽  
M. G. Kanatzidis ◽  
S. D. Shastri ◽  
...  

ABSTRACTResults of high-energy synchrotron radiation experiments are presented demonstrating the advantages of the high-resolution atomic Pair Distribution Function technique in determining the structure of materials with intrinsic disorder.


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