Quasielastic neutron scattering experiments near the order–disorder phase transition on NH4Cl single crystals

1978 ◽  
Vol 69 (7) ◽  
pp. 3170-3181 ◽  
Author(s):  
J. Töpler ◽  
D. R. Richter ◽  
T. Springer
Keyword(s):  
Phase Transition ◽  
Neutron Scattering ◽  
Single Crystals ◽  
Disorder Phase Transition ◽  
Quasielastic Neutron ◽  
Quasielastic Neutron Scattering

NH3 reorientation in phases I, II, and III of Ni(NH3)6(NO3)2

1988 ◽  
Vol 66 (4) ◽  
pp. 692-697 ◽  
Author(s):  
Gordon J. Kearley ◽  
Herma Blank
Keyword(s):  
Phase Transition ◽  
Neutron Scattering ◽  
Strong Interaction ◽  
Rotational Motion ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Phase Iii ◽  
Single Type ◽  
Quasielastic Neutron ◽  
Quasielastic Neutron Scattering

The inelastic neutron scattering (INS) spectra of rotational tunnelling and librations of NH3 ligands in phase III of Ni(NH3)6(NO3)2 are not consistent with a rotational hindrance potential containing only cos [Formula: see text] terms owing to strong interaction between neighboring cations. This type of interaction, and motion of the whole cation, also influences the classical reorientational motions involving displacement of the H atoms, where the overall radius of rotation is consistently greater than the 0.9 Å expected for isolated NH3 rotors. Quasielastic neutron scattering (QNS) suggests that in phase III there are two sublattices of cations, one of which becomes completely disordered (with respect to the NH3 rotors) at the III–II phase transition. Disorder of the second sublattice marks the II–I transformation where only a single type of rotational motion is found.

Isostructural phase transition, quasielastic neutron scattering and magnetic resonance studies of a bistable dielectric ion-pair crystal [(CH3)2NH2]2KCr(CN)6

2019 ◽  
Vol 48 (13) ◽  
pp. 4190-4202 ◽  
Author(s):  
M. Rok ◽  
G. Bator ◽  
B. Zarychta ◽  
B. Dziuk ◽  
J. Repeć ◽  
...  
Keyword(s):  
Phase Transition ◽  
Magnetic Resonance ◽  
Neutron Scattering ◽  
Ion Pair ◽  
Magnetic Resonance Studies ◽  
Ferroelastic Phase Transition ◽  
Quasielastic Neutron ◽  
Quasielastic Neutron Scattering ◽  
Isostructural Phase Transition

Ferroelastic phase transition in novel HOIP crystal with dielectric switchable properties.

scholarly journals High Hydrogen Mobility in an Amide–Borohydride Compound Studied by Quasielastic Neutron Scattering

2021 ◽  
pp. 2100620
Author(s):  
Neslihan Aslan ◽  
Gökhan Gizer ◽  
Claudio Pistidda ◽  
Martin Dornheim ◽  
Martin Müller ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
High Hydrogen ◽  
Quasielastic Neutron ◽  
Quasielastic Neutron Scattering
Sign in / Sign up

Export Citation Format

Share Document