Experimental study of 199Hg spin anti-relaxation coatings
We report on a comparison of spin relaxation rates in a 199Hg magnetometer using different wall coatings. A compact mercury magnetometer was built for this purpose. Glass cells coated with fluorinated materials show longer spin coherence times than if coated with their hydrogenated homologues. The longest spin relaxation time of the mercury vapor was measured with a fluorinated paraffin wall coating.
KeywordsDecay Time Constant Registered Trademark 199Hg 199Hg Atom 199Hg Vapor
The authors would like to thank the University of Fribourg atomic physics group for the preparation of 204Hg bulbs and help with the cesium magnetometry. We thank the initial support of this work by TU München, in particular by P. Fierlinger and G. Petzoldt. The authors are grateful for the excellent technical support by F. Burri and M. Meier.
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