Size effects in multiple quantum NMR of finite spin chains

被引：12
|
作者：
Doronin, SI
Fel'dman, EB
Lacelle, S [1 ]
机构：
[1] Univ Sherbrooke, Dept Chim, Sherbrooke, PQ J1K 2R1, Canada
[2] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Region, Russia
来源：
CHEMICAL PHYSICS LETTERS | 2002年 / 353卷 / 3-4期
基金：
加拿大自然科学与工程研究理事会; 俄罗斯基础研究基金会;
关键词：
D O I：
10.1016/S0009-2614(02)00023-4
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Exact calculations of multiple quantum NMR spectral intensities in finite one-dimensional quantum spin chains with nearest-neighbor couplings and evolving under a two-quantum/two-spin propagator reveal a transition between regular and erratic behavior in the spin dynamics. The onset for this transition, which depends on the number of spins in the chain. arises from spin wave packet propagation and reflection which produce interference effects in finite chains. Implications for excitation of high-order coherences in solids are discussed. The perturbations of one and two spins on the multiple quantum NMR response of an N-spin chain are also examined. (C) 2002 Published by Elsevier Science B.V.
引用
收藏
页码：226 / 230
页数：5
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