Nuclear Spin Relaxometry of $$^$$He Atoms Confined in Mesoporous MCM-41

MCM-41 is a unique mesoporous material with cylindrical-like pores that provide an ideal platform to study 1D properties of adsorbed atoms (Boninsegni and Moroni in J Low Temp Phys 118(1):1, 2000). In this research, we use pulsed NMR to measure the nuclear spin-lattice relaxation times (\(T_1\)) of \(^3\)He adsorbed onto \(^4\)He-preplated MCM-41 over a wide range of temperatures for a line density that would lead to a Fermi temperature of 200 mK. The temperature dependence of the nuclear spin-lattice relaxation time for \( 0.025更多