High-field 3He-F interaction at the surface of fluorocarbon spheres

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High-field experiments on the relaxation betweenF in small Teflon spheres andHe on the surface are reported. WithHe as a monolayer, coupling times are found to be less than 5 sec, in magnetic fields up to 3 T and temperatures down to 50 mK, where electronic centers are completely polarized. The results between 200 and 300 mK and for three magnetic fields fit a coupling model involving an unusually large exchange interaction in the monolayer. With liquidHe we obtain a linear dependence of theHe relaxation time upon both field and temperature.
Original languageEnglish
JournalJournal of Low Temperature Physics
Issue number5-6
Pages (from-to)483-499
Number of pages17
Publication statusPublished - 1 Dec 1984

ID: 95333029