绝热交叉极化
其他凝聚态物理
2007-08-29 v1
摘要
本文描述了一种绝热交叉极化方案。该方案基于去磁化 - 再磁化过程:首先将实验室坐标系中丰核的塞曼序绝热地转换为偶极序,随后将其转换为稀有核的塞曼序。该方案采用两个低功率频率扫描脉冲实现,对于静态样品非常高效,与传统的 Hartmann-Hahn 交叉极化相比,能显著提高稀有核的极化度。文中展示了固体、液晶以及溶解在液晶溶剂中的分子等体系的实验实例。
引用
@article{arxiv.0708.3679,
title = {Adiabatic cross-polarization},
author = {Jae-Seung Lee and A. K. Khitrin},
journal= {arXiv preprint arXiv:0708.3679},
year = {2007}
}
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16 pages including 6 figures
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