Neutron Scattering and Diffraction Studies of Fluids and Fluid-Solid Interactions

2006 ◽  
Vol 63 (1) ◽  
pp. 313-362 ◽  
Author(s):  
D. R. Cole ◽  
K. W. Herwig ◽  
E. Mamontov ◽  
J. Z. Larese
Keyword(s):  
Neutron Scattering ◽  
Neutron Scattering And Diffraction

13. Neutron Scattering and Diffraction Studies of Fluids and Fluid-Solid Interactions

2006 ◽  
pp. 313-362 ◽  
Author(s):  
David R. Cole ◽  
Kenneth W. Herwig ◽  
Eugene Mamontov ◽  
John Z. Larese
Keyword(s):  
Neutron Scattering ◽  
Neutron Scattering And Diffraction

Neutron scattering and diffraction study of Na3Cr2P3O12, NaZr2P3O12 and Na3ZrMgP3O12

1986 ◽  
Vol 18-19 ◽  
pp. 959-963 ◽  
Author(s):  
G LUCAZEAU ◽  
M BARJ ◽  
J SOUBEYROUX ◽  
A DIANOUX ◽  
C DELMAS
Keyword(s):  
Neutron Scattering ◽  
Diffraction Study ◽  
Neutron Scattering And Diffraction

Self-trapped States in Chains of Hydrogen-Bonded Molecules: Optical Measurements, Neutron Scattering and Diffraction

1994 ◽  
pp. 521-528
Author(s):  
Mariette Barthes ◽  
Susanna W. Johnson ◽  
Juergen Eckert ◽  
Hassan Kellouai ◽  
Richard K. McMullan
Keyword(s):  
Neutron Scattering ◽  
Optical Measurements ◽  
Neutron Scattering And Diffraction ◽  
Trapped States ◽  
Hydrogen Bonded

Local atomic structure of relaxor ferroelectric solids studied by pulsed neutron scattering

1994 ◽  
Vol 52 ◽  
pp. 554-555
Author(s):  
T. Egami ◽  
H. D. Rosenfeld ◽  
S. Teslic
Keyword(s):  
Neutron Scattering ◽  
Atomic Structure ◽  
Argonne National Laboratory ◽  
Relaxor Ferroelectrics ◽  
Relaxor Ferroelectric ◽  
Crystallographic Structure ◽  
Chemical Inhomogeneity ◽  
Distribution Analysis ◽  
Ferroelectric Transition ◽  
Pulsed Neutron

Relaxor ferroelectrics, such as Pb(Mg1/3Nb2/3)O3 (PMN) or (Pb·88La ·12)(Zr·65Ti·35)O3 (PLZT), show diffuse ferroelectric transition which depends upon frequency of the a.c. field. In spite of their wide use in various applications details of their atomic structure and the mechanism of relaxor ferroelectric transition are not sufficiently understood. While their crystallographic structure is cubic perovskite, ABO3, their thermal factors (apparent amplitude of thermal vibration) is quite large, suggesting local displacive disorder due to heterovalent ion mixing. Electron microscopy suggests nano-scale structural as well as chemical inhomogeneity.We have studied the atomic structure of these solids by pulsed neutron scattering using the atomic pair-distribution analysis. The measurements were made at the Intense Pulsed Neutron Source (IPNS) of Argonne National Laboratory. Pulsed neutrons are produced by a pulsed proton beam accelerated to 750 MeV hitting a uranium target at a rate of 30 Hz. Even after moderation by a liquid methane moderator high flux of epithermal neutrons with energies ranging up to few eV’s remain.

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