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Start Over Author "Charles Parks" Publisher world scientific pub co pte lt
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1. INVESTIGATION OF MULTIPLE-SPIN EXCHANGE IN 2D FILMS OF 3<font>He</font>: NMR STUDIES

Author

Neil Sullivan, Charles Parks, and Piotr Stachowiak

Subjects
Nuclear magnetic resonance, Materials science, Condensed matter physics, Monolayer, Temperature independent, Relaxation (physics), Statistical and Nonlinear Physics, Hexagonal boron nitride, Condensed Matter Physics, Spin (physics), Quantum
Abstract

Results of NMR studies of the nuclear spin-spin relaxation times at low temperatures are reported for commensurate monolayers of 3 He physisorbed on hexagonal boron nitride. Temperature independent relaxation rates are observed for 0.11< T 3 He atoms. The relaxation times and the inferred effective exchange rates were observed to change significantly on replacing the 3 He atoms with relatively immobile Ne atoms. This result is understood in terms of a large 3-spin exchange in addition to 2-spin exchange.

Published
2002

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