A new LaCo0.71(1)V0.29(1)O2.97(3) perovskite containing vanadium in octahedral sites: synthesis and structural and magnetic characterization

2015 ◽  
Vol 44 (23) ◽  
pp. 10721-10727 ◽  
Author(s):  
V. C. Fuertes ◽  
M. C. Blanco ◽  
D. G. Franco ◽  
S. Ceppi ◽  
R. D. Sánchez ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Magnetic Characterization ◽  
Octahedral Sites ◽  
Powder Neutron Diffraction

Powder neutron diffraction, Co-Kβ XES spectra and a polyhedral view of the orthorhombic LaCo0.71(1)V0.29(1)O2.97(3) perovskite.

The structure of Na2UCl6 and Li2UCl6 from multiphase powder neutron profile refinement

1983 ◽  
Vol 16 (2) ◽  
pp. 164-170 ◽  
Author(s):  
P. J. Bendall ◽  
A. N. Fitch ◽  
B. E. F. Fender
Keyword(s):  
Neutron Diffraction ◽  
Room Temperature ◽  
Lithium Ions ◽  
Two Phase ◽  
Relative Ease ◽  
Space Group ◽  
Octahedral Sites ◽  
Powder Neutron Diffraction ◽  
Phase Mixture ◽  
Profile Refinement

The structures of Na2UCl6 and Li2UCl6 have been determined by powder neutron diffraction at room temperature in the presence of NaCl and LiCl respectively as impurity. Na2UCl6crystallizes in space group P{\bar 3}m1, with a = 11 8062(9), c = 6.3243(2) Å, and Z = 3. The best description of Li2UCl6 was found in space group P63/mmc, a = 11.1915(5), c = 6.0356(1) Å, and Z = 3, with uranium and lithium ions disordered over the available octahedral sites. The results give the first illustration of the relative ease of analysing a two-phase mixture using a Rietveld profile program adapted to refine simultaneously more than one phase.

Structural Refinement of Olivine-Type LiMgAsO4

1992 ◽  
Vol 45 (9) ◽  
pp. 1355 ◽  
Author(s):  
J Barbier
Keyword(s):  
Neutron Diffraction ◽  
Structural Relationship ◽  
Structural Refinement ◽  
Space Group ◽  
Bond Lengths ◽  
Octahedral Sites ◽  
Powder Neutron Diffraction ◽  
Pnma Space Group ◽  
Average Bond

The refinement of the LiMgAsO4 structure by powder neutron diffraction confirms that it is isostructural with olivine. The structure is orthorhombic, Pnma space group, with a = 10.4183(15), b = 5.9660(8), c = 4.8692(5) �, and Z = 4. The lithium and magnesium atoms are fully ordered on the octahedral sites with average bond lengths (Li-O) = 2.187, (Mg-O) = 2.108 and (As-O) = 1.672 A. LiMgAsO4 is isostructural with LiMgPO4 but not with LiMgVO4. However, a close structural relationship exists between the arsenate and the vanadate involving similar cation arrays but different anion arrays.

Powder neutron diffraction studies of the crystallographic and magnetic structures of Ho2Fe17-xAlxC(x=4 and 7)

1995 ◽  
Vol 7 (5) ◽  
pp. 837-841 ◽  
Author(s):  
C Gou ◽  
D F Chen ◽  
Q W Yan ◽  
P L Zhang ◽  
B G Shen ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Magnetic Structures ◽  
Powder Neutron Diffraction

Study on the crystal and magnetic structures of and by powder neutron diffraction

1998 ◽  
Vol 10 (50) ◽  
pp. 11703-11712 ◽  
Author(s):  
Keitaro Tezuka ◽  
Yukio Hinatsu ◽  
Yutaka Shimojo ◽  
Yukio Morii
Keyword(s):  
Neutron Diffraction ◽  
Magnetic Structures ◽  
Powder Neutron Diffraction ◽  
Crystal And Magnetic Structures

Crystal structure determination by powder neutron diffraction at the spallation neutron source, ISIS

Nature ◽  
1986 ◽  
Vol 320 (6057) ◽  
pp. 46-48 ◽  
Author(s):  
A. K. Cheetham ◽  
W. I. F. David ◽  
M. M. Eddy ◽  
R. J. B. Jakeman ◽  
M. W. Johnson ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Neutron Diffraction ◽  
Neutron Source ◽  
Structure Determination ◽  
Crystal Structure Determination ◽  
Spallation Neutron Source ◽  
Powder Neutron Diffraction

Cation distribution and oxidation states in nickel manganites NiMn2O4 and Ni0.8Mn2.2O4 from powder neutron diffraction

1992 ◽  
Vol 180-181 ◽  
pp. 97-99 ◽  
Author(s):  
J.L. Baudour ◽  
F. Bouree ◽  
M.A. Fremy ◽  
R. Legros ◽  
A. Rousset ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Cation Distribution ◽  
Oxidation States ◽  
Powder Neutron Diffraction

Powder neutron diffraction determination of the structure of the o-xylene/zeolite ZSM-5 complex

2008 ◽  
Vol 112 (1-3) ◽  
pp. 299-307 ◽  
Author(s):  
Colin A. Fyfe ◽  
J.S. Joseph Lee ◽  
Lachlan M.D. Cranswick ◽  
Ian Swainson
Keyword(s):  
Neutron Diffraction ◽  
Powder Neutron Diffraction ◽  
Diffraction Determination

Order-disorder transition and structure of the ordered vacancy compound Nb6C5: powder neutron diffraction studies

1985 ◽  
Vol 18 (4) ◽  
pp. 809-823 ◽  
Author(s):  
J P Landesman ◽  
A N Christensen ◽  
C H de Novion ◽  
N Lorenzelli ◽  
P Convert
Keyword(s):  
Neutron Diffraction ◽  
Disorder Transition ◽  
Powder Neutron Diffraction
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