Nuclear magnetic relaxation times T and T2 have . 1 3 been measured at IMHz and 2MHz for He adsorbed on Grafoil for coverages between O. 1 and 1. 2 monolayers. Results indicate that for low coverages the film has a high mobility while at high coverages it behaves like a solid with Quantum Tunneling. Most of the data can be explained in terms of dipole - dipole interaction and interaction of the spins with the local fields in the Grafoil. The theory of relaxation in two - dimensional systems by these mechanisms is presented
| Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:452375 |
| Date | January 1976 |
| Creators | Cowan, B. P. |
| Publisher | University of Sussex |
| Source Sets | Ethos UK |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
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