论文标题
集成，拉伸和绝热固体效应
Integrated, stretched, and adiabatic solid effects
论文作者
论文摘要
本文提出了一种描述与任意频率扫描微波脉冲相关的动态核极化（DNP）过程的理论。该理论用于解释综合固体效应（ISE）以及新发现的拉伸固体效应（SSE）和绝热固体效应（ASE）。通过在用五苯甲苯甲苯甲苯二代的萘的单晶上进行的9.4 GHz（0.34 T）进行的实验对其进行了验证。结果表明，SSE和ASE可以比ISE更有效。此外，该理论预测，SSE的效率在高磁场上提高了，与核Larmor频率相比，EPR线宽很小。此外，我们表明ISE，SSE和ASE基于类似的物理原理，我们建议定义以区分它们。
This paper presents a theory describing the dynamic nuclear polarization (DNP) process associated with an arbitrary frequency swept microwave pulse. The theory is utilized to explain the integrated solid effect (ISE) as well as the newly discovered stretched solid effect (SSE) and adiabatic solid effect (ASE). It is verified with experiments performed at 9.4 GHz (0.34 T) on single crystals of naphthalene doped with pentacene-d14. It is shown that SSE and ASE can be more efficient than ISE. Furthermore, the theory predicts that the efficiency of the SSE improves at high magnetic fields, where the EPR linewidth is small compared to the nuclear Larmor frequency. In addition, we show that ISE, SSE, and ASE are based on similar physical principles and we suggest definitions to distinguish among them.
