2ND-ORDER QUADRUPOLAR ECHO IN SOLIDS

被引：13

作者：

HAN, DY

KESSEMEIER, H

机构：

[1] Department of Physics and Astronomy, University of North Carolina, Chapel Hill

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.67.346

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Echoes have been observed in an NMR experiment on isolated B-11 nuclei in a Si matrix which arise from a refocusing of the second-order quadrupolar interaction. The quadrupolar couplings are so large that only the central transition is excited. A theoretical treatment using fictitious spin-1/2 operators is presented which shows that the fictitious secular part of the interaction is responsible for the echo formation. The decay of the echo train is caused by the fictitious nonsecular terms.

引用

页码：346 / 349

页数：4

共 18 条

[11] HIGH-RESOLUTION NUCLEAR MAGNETIC-RESONANCE OF INORGANIC SOLIDS [J].