Use of the Pearson type VII distribution in the neutron profile refinement of the structures of LiReO3 and Li2ReO3

1982 ◽  
Author(s):  
A. Santoro ◽  
R. J. Cava ◽  
D. W. Murphy ◽  
R. S. Roth
Keyword(s):  
Pearson Type Vii Distribution ◽  
Pearson Type ◽  
Profile Refinement

Robust mixture clustering using Pearson type VII distribution

2010 ◽  
Vol 31 (16) ◽  
pp. 2447-2454 ◽  
Author(s):  
Jianyong Sun ◽  
Ata Kabán ◽  
Jonathan M. Garibaldi
Keyword(s):  
Pearson Type Vii Distribution ◽  
Pearson Type

Studies of Distortion in Potassium Manganese Fluoride, KMnF3, at 10°K: an Example of Powder Profile Analysis Using the Pearson Type VII Distribution

1990 ◽  
Vol 5 (1) ◽  
pp. 41-43 ◽  
Author(s):  
A. Ratuszna ◽  
K. Majewska
Keyword(s):  
Profile Analysis ◽  
Electronic System ◽  
Maximum Intensity ◽  
Automatic Data ◽  
X Ray ◽  
Distorted Structure ◽  
Pearson Type Vii Distribution ◽  
Pearson Type ◽  
Perovskite Type ◽  
Perovskite Type Structure

AbstractPearson VII functions, some of the most useful descriptions of the intensity distribution within the X-ray powder reflection, have been used to study distortion in the perovskite-type structure of KMnF3. Separate full-widths, Δ, at half-maximum intensity, and Pearson exponents, m, were taken for the low- and high-angle sides of the profiles. The background was assumed to be linear. For the distorted structure, summation was made over all overlapping lines that might possibly contribute to the observed profile. Measurements were performed using a powder diffractometer with a specially adapted electronic system consisting of an automatic data recorder and a method, developed at this laboratory, for transferring data to an IBM PC/AT computer. By these means it could be shown that at 10° K the crystal structure of KMnF3distorts from cubic to monoclinic.

scholarly journals A Skewed Truncated Pearson Type VII Distribution

2005 ◽  
Vol 35 (1) ◽  
pp. 61-71
Author(s):  
Saralees Nadarajah ◽  
Arjun K. Gupta
Keyword(s):  
Pearson Type Vii Distribution ◽  
Pearson Type
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