Synchrotron powder-diffraction study of the spin transition compound [Fe(bpp)2](NCS)2·2H2O and soft X-ray-induced structural phase conversion

2008 ◽  
Vol 890 (1-3) ◽  
pp. 178-183 ◽  
Author(s):  
A. Bhattacharjee ◽  
J. Kusz ◽  
M. Zubko ◽  
H.A. Goodwin ◽  
P. Gütlich
Keyword(s):  
Diffraction Study ◽  
Powder Diffraction ◽  
Spin Transition ◽  
Structural Phase ◽  
Phase Conversion ◽  
X Ray ◽  
Synchrotron Powder Diffraction

Structures of strontium diformate and strontium fumarate. A synchrotron powder diffraction study

2009 ◽  
Vol 65 (4) ◽  
pp. 481-487 ◽  
Author(s):  
Kenny Ståhl ◽  
Jens E. T. Andersen ◽  
Irene Shim ◽  
Stephan Christgau
Keyword(s):  
Diffraction Study ◽  
Dihedral Angle ◽  
Powder Diffraction ◽  
Diffraction Data ◽  
Steric Hindrance ◽  
Powder Diffraction Data ◽  
X Ray ◽  
Space Groups ◽  
Synchrotron Powder Diffraction ◽  
Δ Phase

The crystal structures of strontium diformate in space groups P212121 (α form, 295 K), P41212 (β form, 334 and 540 K) and I41/amd (δ form, 605 K), and strontium fumarate in space groups Fddd (β form, 105 K) and I41/amd (α form, 293 K) have been determined from synchrotron X-ray powder diffraction data. Except for the α-strontium diformate, all the structures are based on a diamond-like Sr-ion arrangement, as in strontium acetylene dicarboxylate. The formate ions are disordered in the δ phase owing to steric hindrance. The fumarate ions are disordered over four (α) or two (β) symmetry-equivalent orientations. α-Strontium fumarate crystallizes with a unique 90° carboxylate dihedral angle, and is stable up to 773 K.

High pressure behaviour of synthetic leucite Rb2[ZnSi5O12]: a combined neutron, X-ray and synchrotron powder diffraction study

1999 ◽  
Vol 214 (6) ◽  
Author(s):  
K. Knorr ◽  
A. Krimmel ◽  
M. Hanfland ◽  
C. Wassilev-Reul ◽  
C. Griewatsch ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Pressure ◽  
Diffraction Study ◽  
Powder Diffraction ◽  
Order Parameter ◽  
Spontaneous Strain ◽  
X Ray ◽  
Synchrotron Powder Diffraction

AbstractNeutron, synchrotron and X-ray high pressure powder diffraction experiments on synthetic leucite, RbA pressure-induced phase transition was found to appear at abut 0.45 GPa. The transition is reversible, proper ferro-elastic and discontinuous. The spontaneous strain scales to an order parameter having

Structural evolution of NASICON-type Li1+xAlxGe2−x(PO4)3 using in situ synchrotron X-ray powder diffraction

2016 ◽  
Vol 4 (20) ◽  
pp. 7718-7726 ◽  
Author(s):  
Dorsasadat Safanama ◽  
Neeraj Sharma ◽  
Rayavarapu Prasada Rao ◽  
Helen E. A. Brand ◽  
Stefan Adams
Keyword(s):  
Solid Electrolyte ◽  
Diffraction Study ◽  
Powder Diffraction ◽  
Structural Evolution ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nasicon Type ◽  
Precursor Glass

In situ synchrotron X-ray diffraction study of the synthesis of solid-electrolyte Li1+xAlxGe2−x(PO4)3 (LAGP) from the precursor glass reveals that an initially crystallized dopant poor phase transforms into the Al-doped LAGP at 800 °C.

X-ray powder diffraction study of the superionic phase in NH4HSeO4

1988 ◽  
Vol 9 (3) ◽  
pp. 77-82 ◽  
Author(s):  
Akira Onodera ◽  
Andre Roncki ◽  
Francoise Denoyer
Keyword(s):  
Diffraction Study ◽  
Powder Diffraction ◽  
X Ray ◽  
Superionic Phase
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