Electromagnetic nuclear spin conversion: Hydrogen on amorphous solid water
Electromagnetic nuclear spin conversion: Hydrogen on amorphous solid water
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DOI：
10.1016/j.cplett.2018.10.053
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发表时间：
2018-12-01
影响因子：
2.8
通讯作者：
Ilisca, Ernest
中科院分区：
文献类型：
--
作者：
Ilisca, Ernest
对吸附在无定形固体水上的分子氢的转化模式的解释证实了该过程的电磁性质。磁自旋轨道耦合和超精细接触在 H-2-ASW 基态中引入了一些电子自旋轨道激发。分子-固体电子排斥消除了 H-2 旋转动量。理论速率在大小和陡峭的温度依赖性方面与实验速率相符。基本讨论集中在表面电场的作用和固体声子对旋转能量的耗散上。
The interpretation of the conversion patterns of molecular hydrogen adsorbed on amorphous solid water confirms the electromagnetic nature of the process. Magnetic spin-orbit coupling and hyperfine contact introduce some electron spin-orbital excitation in the H-2-ASW ground state. The molecule-solid electron repulsion evacuates the H-2 rotation momenta. The theoretical rates fit the experimental ones in magnitude and steep temperature dependence. Fundamental discussion focus on the role of the surface electric field and on the dissipation of the rotational energy by the solid phonons.