Delocalized quantum nature of hydrogen adsorbed on the Rh(111) crystal surface.
Delocalized quantum nature of hydrogen adsorbed on the Rh(111) crystal surface.
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Rh(111) 晶体表面吸附氢的离域量子性质。
DOI：
10.1103/physrevb.34.7417
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
Somorjai
中科院分区：
文献类型：
--
作者：
Maté;Somorjai
用电子能量损失谱（EELS）观测到Rh（111）面上氢原子和氘原子运动的基态带和所有低能带之间的激发。最低能量激发没有氘同位素位移，观察到宽能带，以及与Ni（111）表面上氢的理论计算的良好一致性，为Rh（111）表面上氢原子的离域量子行为提供了强有力的实验证据。我们还观察到一个显着的能量依赖的强度和线宽的EELS激发。
We observe, by electron-energy-loss spectroscopy (EELS), excitations between the ground-state band and all low-lying energy bands for the motion of hydrogen and deuterium atoms on the Rh(111) surface. The absence of a deuterium isotope shift for the lowest-energy excitation, the observation of broad energy bands, and good agreement with theoretical calculations for hydrogen on Ni(111) provide strong experimental evidence for delocalized quantum behavior of hydrogen atoms on the Rh(111) surface. We also observe a remarkable energy dependence of the intensity and linewidths of the EELS excitations.