Powder Neutron Diffraction Study of Pyrolusite, β-MnO2

1993 ◽  
Vol 46 (6) ◽  
pp. 939 ◽  
Author(s):  
AA Bolzan ◽  
C Fong ◽  
BJ Kennedy ◽  
CJ Howard
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Diffraction Pattern ◽  
Rietveld Method ◽  
Neutron Diffraction Pattern ◽  
Neutron Diffraction Study ◽  
Thermal Parameters ◽  
Powder Neutron Diffraction ◽  
Position Parameter ◽  
Thermal Vibrations

The powder neutron diffraction pattern of pyrolusite, β-MnO2 [P42/mnm, No. 136, a = 4.4041(1), c = 2.8765(1)Ǻ], has been refined by the Rietveld method to give values for both the oxygen position parameter u=0.3046(1) and the anisotropic thermal parameters. The data confirm the MnO6 octahedra to be elongated with two long [1.894(1)Ǻ] and four short [1.882(2)Ǻ] Mn-O bond distances. The effect of the stereochemistry on the thermal vibrations is discussed.

Neutron diffraction study of La1−xNdxCrO3 for x=0.0, 0.05, 0.1, 0.2, and 0.25

2003 ◽  
Vol 18 (4) ◽  
pp. 285-287 ◽  
Author(s):  
Keka R. Chakraborty ◽  
A. K. Tyagi
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Room Temperature ◽  
Rietveld Method ◽  
Neutron Diffraction Study ◽  
Temperature Data ◽  
Unit Cell ◽  
Ionic Radii ◽  
Powder Neutron Diffraction

A powder neutron diffraction study has been undertaken for the titled compounds at room temperature. Data were analyzed using the Rietveld method. With increasing Nd content the unit cell has been found to contract very slightly, which is in accordance with the ionic radii of La3+ and Nd3+.

Neutron diffraction study of thermal parameters in UX3compounds

1981 ◽  
Vol 37 (4) ◽  
pp. 558-565 ◽  
Author(s):  
J. Faber ◽  
G. H. Lander ◽  
P. J. Brown ◽  
A. Delapalme
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Neutron Diffraction Study ◽  
Thermal Parameters

High-resolution powder neutron diffraction study of helimagnetic order inCrP1−xVxO4solid solutions

2000 ◽  
Vol 62 (2) ◽  
pp. 992-997 ◽  
Author(s):  
J. P. Wright ◽  
J. P. Attfield ◽  
W. I. F. David ◽  
J. B. Forsyth
Keyword(s):  
High Resolution ◽  
Neutron Diffraction ◽  
Diffraction Study ◽  
Neutron Diffraction Study ◽  
Powder Neutron Diffraction

Powder neutron diffraction study on TbPd3S4 and YbPd3S4

2001 ◽  
Vol 231 (1) ◽  
pp. 23-28 ◽  
Author(s):  
E. Matsuoka ◽  
F. Takahashi ◽  
J. Kitagawa ◽  
K. Ohoyama ◽  
H. Yoshizawa ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Neutron Diffraction Study ◽  
Powder Neutron Diffraction

Single-crystal and powder neutron diffraction study of the Fe Mn1−S solid solutions

2015 ◽  
Vol 632 ◽  
pp. 563-567 ◽  
Author(s):  
Galina Abramova ◽  
Juerg Schefer ◽  
Nadir Aliouane ◽  
Martin Boehm ◽  
German Petrakovskiy ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Single Crystal ◽  
Diffraction Study ◽  
Solid Solutions ◽  
Neutron Diffraction Study ◽  
Powder Neutron Diffraction

Structure of Lithium Nitride and Transition-Metal-Doped Derivatives, Li3-x-yMxN (M = Ni, Cu):  A Powder Neutron Diffraction Study

2002 ◽  
Vol 14 (5) ◽  
pp. 2063-2070 ◽  
Author(s):  
Duncan H. Gregory ◽  
Paul M. O'Meara ◽  
Alexandra G. Gordon ◽  
Jason P. Hodges ◽  
Simine Short ◽  
...  
Keyword(s):  
Transition Metal ◽  
Neutron Diffraction ◽  
Diffraction Study ◽  
Neutron Diffraction Study ◽  
Lithium Nitride ◽  
Powder Neutron Diffraction ◽  
Metal Doped
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