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Cross relaxation of12B in single-crystal aluminium

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Zeitschrift für Physik B Condensed Matter

Abstract

The dipole-dipole interaction of extremely diluted probe nuclei with their surrounding host nuclei gives rise to mutual flip-flop processes of the nuclear spins. As energy has to be conserved in this so-called cross-relaxation (CR) process a transfer of polarization from the probes to the host nuclei occurs only at certain values of the inductionB leading to resonance-like dips in the probe's polarization. For the system12B in single-crystal aluminium CR spectra were measured forB=7...400 mT andT=310...410 K at various crystal orientations relative toB. All the spectra could be well explained by a theoretical calculation assuming the octahedral interstitial site for12B.

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Author notes

  1. E. Jäger

    Present address: Dr. J. Heidenhain GmbH, D-8225, Traunreut, FRG

  2. K. Bürkmann

    Present address: BESSY, Lentzeallee 100, D-1000, Berlin 33, Germany

Authors and Affiliations

  1. Fachbereich Physik und Wissenschaftliches Zentrum für Materialwissenschaften der Universität Marburg, Renthof 5, D-3550, Marburg/Lahn, Germany

    E. Jäger, B. Ittermann, G. Sulzer, K. Bürkmann, B. Fischer, H. P. Frank, H. J. Stöckmann & H. Ackermann

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  1. E. Jäger
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  2. B. Ittermann
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  3. G. Sulzer
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  4. K. Bürkmann
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  5. B. Fischer
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  6. H. P. Frank
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  7. H. J. Stöckmann
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  8. H. Ackermann
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Jäger, E., Ittermann, B., Sulzer, G. et al. Cross relaxation of12B in single-crystal aluminium. Z. Physik B - Condensed Matter 80, 87–94 (1990). https://doi.org/10.1007/BF01390653

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  • DOI: https://doi.org/10.1007/BF01390653

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