Dynamics of 1D 3He adsorbed in 4He plated MCM-41: NMR Studies

Johnny Adams; Marc L. Lewkowitz; Chao Huan; Naoto Masuhara; Neil S. Sullivan

Dynamics of 1D <sup>3</sup>He adsorbed in <sup>4</sup>He plated MCM-41: NMR Studies

ORAL

Abstract

We report the results of NMR studies of the dynamics of³He confined to 1D in the interior of the hexagonal nanochannels of MCM-41. The walls of the MCM-41 were coated with a monolayer of ⁴He and³He was added afterwards to form a 1D ³He line density of 0.1 Å^-1. The nuclear spin-lattice relaxation times were measured for temperatures 0.050 < T < 3.0 K. A distinct peak is observed at 95 mK which is interpreted as the expected maximum of the “spin-drag” relaxation time predicted by theory for T = 2T_F where T_F is the Fermi degeneracy temperature.

^*The measurements were carried out at the High B/T facility of the National High Magnetic Field Laboratory which is supported by the NSF through DMR-1644779 and the State of Florida.

March 7, 2019, 3:18 PM – March 7, 2019, 3:30 PM

Presenters

Johnny Adams
- Department of Physics and NHMFL, University of Florida

Authors

Johnny Adams
- Department of Physics and NHMFL, University of Florida
Marc L. Lewkowitz
- Department of Physics and NHMFL, University of Florida
Chao Huan
- Department of Physics and NHMFL, University of Florida
Naoto Masuhara
- Department of Physics and NHMFL, University of Florida
Neil S. Sullivan
- Department of Physics and NHMFL, University of Florida