Abstract
NMR data show that the deuteron "pseudo spin-glass" transition in is not just a simple kinetic slowing down process but is characterized by a gradual condensation of randomly polarized clusters as expected if we deal with a percolation transition in eigenstate space. The results provide novel information on the temperature dependence and distribution of local random fields and their dynamics. The spin-lattice and motional-narrowing data further suggest that the "pseudospin" O—D--O deuteron intrabond motion determines the freezing dynamics.
- Received 28 July 1986
DOI:https://doi.org/10.1103/PhysRevLett.57.2826
©1986 American Physical Society