Surface nuclear spin relaxation of 199Hg.
We report the results of a detailed study of surface relaxation of 199Hg nuclear spins in paraffin coated cells. From measurements of the magnetic field and temperature dependence of the spin relaxation rates we determine the correlation time for magnetic fluctuations and the surface adsorption energy. The data indicate that surface relaxation is caused by dipolar coupling to paramagnetic sites on the surface. We also observe changes in the spin relaxation rate caused by ultraviolet radiation resonant with the 254 nm transition in Hg.
Department of Physics, University of Washington, Seattle, Washington 98195, USA. romalis@princeton.edu
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D000327:Adsorption; D002627:Chemistry, Physical / Q000379:methods; D004574:Electromagnetic Fields; D009682:Magnetic Resonance Spectroscopy; D008280:Magnetics; D008629:Mercury Isotopes; D008956:Models, Chemical; D015233:Models, Statistical; D011522:Protons; D013696:Temperature; D014466:Ultraviolet Rays
D008629:Mercury Isotopes; D011522:Protons