NMR Proton Second Moments in KH2PO4-type Crystals
- 1 August 1971
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 55 (3) , 1137-1139
- https://doi.org/10.1063/1.1676197
Abstract
Calculated second moments of the NMR proton lines for different cases of dynamic proton modes and static ordering in KH2PO4-type crystals show differences that are too small to be experimentally observable. It is shown, however, that a previously proposed disordered rotation of the H2PO4 group cannot account for the proton linewidth narrowing at the high-temperature (180°C) transition in KH2PO4. An incidental result of this investigation is the 14N nuclear quadrupole coupling constant in NH4H2AsO4, of 30.7 kHz.Keywords
This publication has 11 references indexed in Scilit:
- Electric-Field-Gradient Fluctuations in KP-Type FerroelectricsPhysical Review Letters, 1969
- High-Temperature Phase Transition in KH2PO4The Journal of Chemical Physics, 1968
- Dynamical Theory of the Phase Transition in KH2PO4-Type Ferroelectric CrystalsJournal of the Physics Society Japan, 1968
- Magnetic Resonance in Hydrogen-Bonded FerroelectricsPublished by Elsevier ,1968
- Temperature Dependences of the Nuclear Quadrupole Resonance Spectra of As75 in KH2AsO4, RbH2AsO4, CsH2AsO4, NH4H2AsO4, and of their Deuterated AnaloguesPhysica Status Solidi (b), 1968
- Absence of a Linewidth Transition for the Protons in KH2PO4‐Type CrystalsThe Journal of Chemical Physics, 1962
- Crystal stability and the theory of ferroelectricity part II. Piezoelectric crystalsAdvances in Physics, 1961
- A neutron structure analysis of tetragonal NH4(H2PO4)Acta Crystallographica, 1958
- A neutron-diffraction study of the ferroelectric transition of potassium dihydrogen phosphateProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1955
- The Dipolar Broadening of Magnetic Resonance Lines in CrystalsPhysical Review B, 1948