scholarly journals Direct observation of structural changes near and at the charge-ordering temperature of ilvaite using high-flux neutron powder diffraction

2014 ◽  
Vol 2 (20) ◽  
pp. 3890-3894
Author(s):  
E. R. Williams ◽  
M. T. Weller
Keyword(s):  
Long Range ◽  
Powder Diffraction ◽  
Structural Changes ◽  
Rapid Determination ◽  
Neutron Powder Diffraction ◽  
Charge Ordering ◽  
High Flux ◽  
Charge Redistribution ◽  
Structural Rearrangements

Neutron powder diffraction allows the rapid determination of the charge redistribution and structural rearrangements as, and after, a material undergoes long range charge-ordering.

ChemInform Abstract: Determination of the Cationic Arrangement in Sn2F6 from Neutron Powder Diffraction.

ChemInform ◽  
2010 ◽  
Vol 22 (21) ◽  
pp. no-no
Author(s):  
N. RUCHAUD ◽  
C. MIRAMBET ◽  
L. FOURNES ◽  
J. GRANNEC ◽  
J. L. SOUBEYROUX
Keyword(s):  
Powder Diffraction ◽  
Neutron Powder Diffraction

Determination of the Cation Distribution in NiFe2(PO4)2 using Resonant X-ray and Neutron Powder Diffraction

1995 ◽  
Vol 28 (5) ◽  
pp. 494-502 ◽  
Author(s):  
J. K. Warner ◽  
A. K. Cheetham ◽  
D. E. Cox
Keyword(s):  
Powder Diffraction ◽  
National Laboratory ◽  
Time Of Flight ◽  
Brookhaven National Laboratory ◽  
Neutron Powder Diffraction ◽  
Anomalous Scattering ◽  
Edge Structure ◽  
X Ray ◽  
Scattering Correction

The distribution of divalent iron and nickel over two metal sites of differing coordination geometry in NiFe2(PO4)2, sarcopside, has been investigated by resonant X-ray and time-of-flight neutron powder diffraction. To assess the reproducibility of the X-ray technique, data have been collected from instruments X7A at Brookhaven National Laboratory and 8.3 at the Synchrotron Radiation Source, Daresbury Laboratory, England, using wavelengths λ X1 = 1.7437 (3) Å and λ X2 = 1.7434 (1) Å, respectively, close to the Fe2+ K edge determined by X-ray absorption near-edge structure. The real part of the anomalous-scattering correction for iron at each energy, f′(Fe) X1 = −7.81 (9) and f′(Fe) X2 = −10.16 (6), was determined experimentally by diffraction from Fe3(PO4)2 under identical conditions. Occupancies obtained for iron at the M(1) site were found to be M(1) X1 = 0.366 (6) and M(1) X2 = 0.376 (3), compared with M(1) N = 0.26 (15) from time-of-flight neutron powder diffraction.

Structure determination of Ba5AlF13 by coupling electron, synchrotron and neutron powder diffraction, solid-state NMR and ab initio calculations

2016 ◽  
Vol 45 (39) ◽  
pp. 15565-15574 ◽  
Author(s):  
Charlotte Martineau ◽  
Mathieu Allix ◽  
Matthew R. Suchomel ◽  
Florence Porcher ◽  
François Vivet ◽  
...  
Keyword(s):  
Solid State ◽  
Dft Calculations ◽  
Powder Diffraction ◽  
Solid State Nmr ◽  
Neutron Powder Diffraction ◽  
Complementary Information ◽  
Electron Synchrotron ◽  
Structure And Dynamics ◽  
Fast Mas

The structure and dynamics of Ba5AlF13 are resolved by combining complementary information from powder diffraction, 27Al and 19F ultra-fast MAS NMR and DFT calculations.

Magnetic structure determination of TbCo2Ni3using polarized and nonpolarized neutron powder diffraction

2013 ◽  
Vol 88 (5) ◽  
Author(s):  
Oleg Rivin ◽  
El'ad N. Caspi ◽  
Hanania Ettedgui ◽  
Hagai Shaked ◽  
Arsen Gukasov
Keyword(s):  
Magnetic Structure ◽  
Powder Diffraction ◽  
Structure Determination ◽  
Neutron Powder Diffraction
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