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Multiple spin echoes in spin polarized Fermi liquids

Multiple spin echoes in spin polarized Fermi liquids Multiple spin echoes (MSEs) in3He and in3He-4He mixtures have been analyzed using a theoretical technique proposed by Einzel et al. In both systems MSEs are generated by Fermi liquid interactions, but for3He, MSEs are also generated at higher temperatures by the dipolar demagnetizing field. The theory is compared with the experimental results for3He and with our measurements for3He-4He mixtures. We have improved on the fit to the second echo heights for3He given by Einzel et al. by taking account of both the Leggett-Rice effect and the dipolar interaction in the calculation. Good fits were also found for the first and second echo heights for the3He-4He data. The third echo height is larger than expected if we assume that the total magnetization remains uniform in space. We have developed the theory for the case when this approximation is not made, and we find good agreement for the first five echoes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Low Temperature Physics Springer Journals

Multiple spin echoes in spin polarized Fermi liquids

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References (8)

Publisher
Springer Journals
Copyright
Copyright
Subject
Physics; Condensed Matter Physics; Characterization and Evaluation of Materials; Magnetism, Magnetic Materials
ISSN
0022-2291
eISSN
1573-7357
DOI
10.1007/BF00682194
Publisher site
See Article on Publisher Site

Abstract

Multiple spin echoes (MSEs) in3He and in3He-4He mixtures have been analyzed using a theoretical technique proposed by Einzel et al. In both systems MSEs are generated by Fermi liquid interactions, but for3He, MSEs are also generated at higher temperatures by the dipolar demagnetizing field. The theory is compared with the experimental results for3He and with our measurements for3He-4He mixtures. We have improved on the fit to the second echo heights for3He given by Einzel et al. by taking account of both the Leggett-Rice effect and the dipolar interaction in the calculation. Good fits were also found for the first and second echo heights for the3He-4He data. The third echo height is larger than expected if we assume that the total magnetization remains uniform in space. We have developed the theory for the case when this approximation is not made, and we find good agreement for the first five echoes.

Journal

Journal of Low Temperature PhysicsSpringer Journals

Published: Nov 6, 2004

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