Anomalous anisotropies and field dependencies of the muon Knight shift and the relaxation rate in monocrystalline Bi |
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Authors: | E. Lippelt P. Birrer F. N. Gygax B. Hitti A. Schenck M. Weber |
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Affiliation: | (1) Institut für Mittelenergiephysik der ETH Zürich, Ch-5232 Villigen PSI, Switserland |
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Abstract: | The angular dependence of the muon Knight shift,K μ, and the muon relaxation rate in Bi at 11 K were measured in external magnetic fields up to 1 T. BothK μ and the second moment,M 2, are field dependent and involveP 4 0(cos θ) andP 4 3(cos θ) terms in the angular dependence. The Knight shift behaviour is discussed in terms of the dipole-dipole interaction and the de Haas-van Alphen effect, a consistent interpretation was not achieved in either case. The field dependence ofM 2 is in complete contrast to the second moment calculations and points to a field dependent redistribution of the charge distribution around the interstitial site. |
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