scholarly journals Refinement of the Structure of Ta2D by High-Resolution Powder Neutron Diffraction

1985 ◽  
Vol 26 (11) ◽  
pp. 795-798 ◽  
Author(s):  
Hideaki Murata ◽  
Hajime Asano ◽  
Fujio Izumi ◽  
Shoichi Tomiyoshi ◽  
Hirokatsu Iwasa ◽  
...  
Keyword(s):  
High Resolution ◽  
Neutron Diffraction ◽  
Powder Neutron Diffraction

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

Problems of studying the crystal structure of Ce1−xLax11B6 solid solutions by high-resolution powder neutron diffraction

1991 ◽  
Vol 24 (2) ◽  
pp. 142-145 ◽  
Author(s):  
V. A. Trunov ◽  
A. L. Malyshev ◽  
D. Yu. Chernyshov ◽  
A. I. Kurbakov ◽  
M. M. Korsukova ◽  
...  
Keyword(s):  
Crystal Structure ◽  
High Resolution ◽  
Neutron Diffraction ◽  
Solid Solutions ◽  
Powder Neutron Diffraction

scholarly journals Octahedral tilting in the polar hexagonal tungsten bronzes RbNbW2O9 and KNbW2O9

2019 ◽  
Vol 75 (5) ◽  
pp. 815-821
Author(s):  
Jason A. McNulty ◽  
Alexandra S. Gibbs ◽  
Philip Lightfoot ◽  
Finlay D. Morrison
Keyword(s):  
High Resolution ◽  
Neutron Diffraction ◽  
Ambient Temperature ◽  
Structural Determination ◽  
Orthorhombic Space Group ◽  
Complementary Technique ◽  
Powder Neutron Diffraction ◽  
Octahedral Tilting ◽  
Cation Size

The ambient-temperature structures (orthorhombic, space group Cmc21) of the polar hexagonal tungsten bronzes RbNbW2O9 and KNbW2O9 have been determined by high-resolution powder neutron diffraction. Displacement of the A-site cation along the polar c axis with concomitant octahedral tilting occurs to optimize the A cation bonding environment, hence reducing the coordination from 18 to 16. This effect is more evident in KNbW2O9 due to decreased A cation size. The octahedral tilting in both compositions results in a doubling of the c axis that has not previously been reported, highlighting the importance of neutron diffraction as a complementary technique for structural determination of such systems.

Sign in / Sign up

Export Citation Format

Share Document