Department of Physics Papers
Document Type
Journal Article
Date of this Version
2-1-1994
Publication Source
Physical Review B
Volume
49
Issue
6
Start Page
3844
Last Page
3856
DOI
10.1103/PhysRevB.49.3844
Abstract
The differences in the observed properties of solid H2 and D2 are reviewed, and in particular those encountered in NMR experiments. The failure to detect a sharp NMR (I=1) impurity ‘‘isolated pair’’ spectrum in p-D2 is discussed in terms of a larger crystalline field than in H2, where an intense and sharp pair spectrum has been observed. Furthermore, we discuss the dramatic (I=1) solid echo signal loss with decreasing temperature which is observed in solid D2, but not for solid H2. A theory of the solid echo damping through orientational fluctuations is developed. This theory accounts for the observed solid echo decay in D2 as a function of the pulse spacing time τ and leads to an estimation of the order parameter fluctuation amplitude and the correlation time τc. However, the theory cannot account for the loss of spin (as determined from Curie’s law), which must occur for very small values of τ that are not covered by the theory.
Recommended Citation
Harris, A., Meyer, H., & Qin, X. (1994). Solid H2 and D2: Remarkable Differences in Some NMR Properties. Physical Review B, 49 (6), 3844-3856. http://dx.doi.org/10.1103/PhysRevB.49.3844
Date Posted: 12 August 2015
This document has been peer reviewed.