CROSS RELAXATION OF B-12 IN SINGLE-CRYSTAL ALUMINUM

被引：15

作者：

JAGER, E

ITTERMANN, B

SULZER, G

BURKMANN, K

FISCHER, B

FRANK, HP

STOCKMANN, HJ

ACKERMANN, H

机构：

[1] Fachbereich Physik, und Wissenschaftliches Zentrum für Materialwissenschaften der Universität Marburg, Marburg/Lahn, D-3550

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1990年 / 80卷 / 01期

关键词：

D O I：

10.1007/BF01390653

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

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 induction B leading to resonance-like dips in the probe's polarization. For the system12B in single-crystal aluminium CR spectra were measured for B=7...400 mT and T=310...410 K at various crystal orientations relative to B. All the spectra could be well explained by a theoretical calculation assuming the octahedral interstitial site for12B. © 1990 Springer-Verlag.

引用

页码：87 / 94

页数：8

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