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Quantum Tunneling of $$^3$$ 3 He in Solid $$^4$$ 4 He: A New Analysis

Quantum Tunneling of $$^3$$ 3 He in Solid $$^4$$ 4 He: A New Analysis We discuss the analysis of the experimental values of the nuclear spin–lattice and spin–spin relaxation times for the tunneling of $$^3$$ 3 He as isotopic impurities in solid $$^4$$ 4 He. These two relaxation times cannot be described quantitatively using a unique correlation time although it is often presented as such in the literature. In this paper, we discuss how to distinguish the high-frequency portion of the spectral densities that determine the spin–lattice relaxation rates from the low-frequency components which determine the spin–spin relaxation rates. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Low Temperature Physics Springer Journals

Quantum Tunneling of $$^3$$ 3 He in Solid $$^4$$ 4 He: A New Analysis

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References (32)

Publisher
Springer Journals
Copyright
Copyright © 2016 by Springer Science+Business Media New York
Subject
Physics; Condensed Matter Physics; Characterization and Evaluation of Materials; Magnetism, Magnetic Materials
ISSN
0022-2291
eISSN
1573-7357
DOI
10.1007/s10909-016-1637-2
Publisher site
See Article on Publisher Site

Abstract

We discuss the analysis of the experimental values of the nuclear spin–lattice and spin–spin relaxation times for the tunneling of $$^3$$ 3 He as isotopic impurities in solid $$^4$$ 4 He. These two relaxation times cannot be described quantitatively using a unique correlation time although it is often presented as such in the literature. In this paper, we discuss how to distinguish the high-frequency portion of the spectral densities that determine the spin–lattice relaxation rates from the low-frequency components which determine the spin–spin relaxation rates.

Journal

Journal of Low Temperature PhysicsSpringer Journals

Published: Jun 15, 2016

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