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CW NMR Studies of Quasi-1D <sup>3</sup>He Below the Fermi Temperature

ORAL

Abstract

Theorists have predicted new quantum states can emerge for quantum fluids (3He, 4He, H2, HD) constrained to nanoscale dimensions where the thermal de Broglie wavelength and/or Fermi length are comparable to the channel size [1, 2]. In this experimental study, CW NMR techniques have been used to investigate the dynamics of quasi-1D 3He at low temperatures where pulsed NMR techniques cannot be used because of excessive RF heating. Specifically the nuclear spin relaxation times were obtained at temperatures down to 15 mK for 3He constrained to the interior of 4He-plated MCM-41, allowing for a more complete determination of the dynamics.

[1] S.-i. Tomonaga, Progress of Theoretical Physics 5, 544 (1950).

[2] J. M. Luttinger, J. Math. Phys. 4, 1154 (1963).

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Publication: Adams et al., "Dynamics of 3He in one dimension in the Luttinger liquid limit", Phys. Rev. B, Submitted July 2022<br>Adams et al., "CW NMR Studies of quasi-one dimensional 3He at very low temperatures", Planned paper

Presenters

  • Johnny L Adams

    University of Florida

Authors

  • Johnny L Adams

    University of Florida

  • Marc L lewkowitz

    University of Florida

  • Chao Huan

    University of Florida

  • Naoto Masuhara

    University of Florida

  • Neil S Sullivan

    University of Florida

  • Donald Candela

    University of Massachusetts Amherst