INFLUENCE OF POINT DEFECTS AND DISLOCATIONS ON LINE SHAPE OF NUCLEAR MAGNETIC RESONANCE SIGNALS

被引：19

作者：

KANERT, O

KOTZUR, D

MEHRING, M

机构：

[1] Physikalisches Institut, Westfälischen Wilhelms‐Universität, Münster

[2] M.I.T, Department of Chemistry, Cambridge, Massachusetts

来源：

PHYSICA STATUS SOLIDI | 1969年 / 36卷 / 01期

关键词：

D O I：

10.1002/pssb.19690360130

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The quadrupolar part of the line shape of a NMR signal is determined by lattice imperfections in the case of cubic crystals. This quadrupolar shape function is presented under the assumption of randomly distributed point defects, dislocation dipoles, and dislocations. Experimental quadrupole shapes were obtained by a line shape analysis of the NMR wide‐line signal and the spin echo signal in the case of different alkali halide crystals. The resulting quadrupolar lines can be compared with the calculated functions. The comparison shows an agreement of the measured shape with the point defect model in the case of undeformed crystals, whereas in the case of deformed crystals the dislocation model is valid. Copyright © 1969 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：291 / &

共 16 条

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