EFFECT OF SPIN FLIP-FLOP ON ELECTRON-SPIN-ECHO DECAY DUE TO INSTANTANEOUS DIFFUSION

被引：19

作者：

KURSHEV, VV ^{[1
]}

ICHIKAWA, T ^{[1
]}

机构：

[1] HOKKAIDO UNIV,FAC ENGN,SAPPORO,HOKKAIDO 060,JAPAN

来源：

JOURNAL OF MAGNETIC RESONANCE | 1992年 / 96卷 / 03期

关键词：

D O I：

10.1016/0022-2364(92)90341-4

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The effect of electron spin flip-flop on two- and 2 + 1-pulse electron-spin-echo decay due to instantaneous diffusion was studied on hydrogen atoms in y-irradiated quartz. The observed decay was slower than the theoretical decay including no spin flip-flop, and the discrepancy increased with the concentration of the hydrogen atoms. A comparison of the theoretical and the experimental decay rates revealed that the main factor diminishing the effect of instantaneous diffusion is not the direct flip-flop between on-resonant spins, but the fluctuation of the local magnetic fields for on-resonant spins due to the flip-flop of adjacent spin pairs. © 1992.

引用

页码：563 / 573

页数：11

共 12 条

[1]

ABRAGAM A, 1961, PRINCIPLES NUCLEAR M

[2]

CLAUDER JR, 1962, PHYS REV, V125, P912

[3] MICROCOMPUTER-CONTROLLED PULSE-GENERATOR FOR AN ELECTRON SPIN-ECHO SPECTROMETER [J].