SPECTRAL INVESTIGATION OF SPIN-ECHO EMISSION

被引：2

作者：

BOSCAINO, R ^{[1
]}

GELARDI, FM ^{[1
]}

机构：

[1] UNIV PALERMO,INST PHYS,I-90123 PALERMO,ITALY

来源：

SOLID STATE COMMUNICATIONS | 1993年 / 87卷 / 05期

关键词：

D O I：

10.1016/0038-1098(93)90790-T

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The spectral content of the echo radiation emitted after a two-pulse sequence is measured in a two-level spin system. The spectral profiles exhibit maxima and zeroes of spectral density depending on the exciting sequence parameters. A calculation based on a vectorial model relates the zeroes to those packets that happen to be transparent to the second (refocusing) pulse. Moreover we report on a new spectral narrowing effect which we tentatively ascribe to the instantaneous diffusion.

引用

页码：421 / 424

页数：4

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