Abstract
The splitting of the NMR line in solid hydrogen has been observed during 145 h while it aged at temperatures below 0.1°K. For ortho-hydrogen mole fractions less than 0.55, the NMR splitting is present but disappears abruptly at transition temperatures fitting a straight line . The concentration dependence of the splitting is compared to a model which includes only a zero-point admixture to the ground state from the wave functions of the libron band, and a zero-point admixture of the state, both of which admixtures scale according to the observed concentration dependence of the transition temperature.
- Received 27 January 1975
DOI:https://doi.org/10.1103/PhysRevB.12.2596
©1975 American Physical Society