Dynamics of <sup>3</sup>He in a quasi-1D environment using <sup>4</sup>He-plated MCM-41: NMR Studies

POSTER

Abstract

We utilize pulsed NMR techniques to study the dynamics of 3He atoms in quasi-1D. The quasi-1D structure was formed within the nanochannels of mesoporous MCM-41 plated with a monolayer of 4He. Measurements were carried out between 0.030K < T < 3.0K, with a 3He line density of 0.1Å-1. Direct measurement of the nuclear spin magnetization as a function of temperature show the effect of degeneracy more pronounced in a quasi-1D system compared to 3D systems. Studies of the nuclear spin-lattice interaction show a characteristic peak at 2TF, while the nuclear spin-spin interaction show unusual temperature dependencies below 0.5K.

*This research was carried out at the National High Magnetic Field Laboratory’s High B/T Facility which is supported by NSF Grant DMR 1644779 and by the State of Florida.

Presenters

  • Johnny Adams

    • Department of Physics and NHMFL, University of Florida
    • Department of Physics and The Center for Molecular Magnetic and Quantum Materials, University of Florida

Authors

  • Chao Huan

    • Department of Physics and NHMFL, University of Florida

  • Johnny Adams

    • Department of Physics and NHMFL, University of Florida
    • Department of Physics and The Center for Molecular Magnetic and Quantum Materials, University of Florida

  • Marc Lewkowitz

    • Department of Physics and NHMFL, University of Florida
    • Department of Physics and The Center for Molecular Magnetic and Quantum Materials, University of Florida

  • Naoto Masuhara

    • Department of Physics and NHMFL, University of Florida

  • Donald Candela

    • Department of Physics and NHMFL, University of Massachusetts Amherst

  • Neil Sullivan

    • Department of Physics and NHMFL, University of Florida
    • Department of Physics and The Center for Molecular Magnetic and Quantum Materials, University of Florida