Overtones of H vibrations at Ni(111): Formation of delocalized states

被引：18

作者：

Okuyama, H ^{[1
]}

Ueda, T ^{[1
]}

Aruga, T ^{[1
]}

Nishijima, M ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch, Dept Chem, Kyoto 6068502, Japan

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.63.233403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Vibrational states of H adsorbed on Ni(111) have been investigated by means of electron-energy-loss spectroscopy. In addition to the symmetric (upsilon (s)) and asymmetric (upsilon (as)) fundamental modes, the corresponding overtone structures are clearly detected. The overtone of upsilon (as), the predominantly parallel-polarized mode, exhibits a doublet structure, which is interpreted to result from the delocalization of the excited vibrational states. It is shown that the doublet corresponds to the "bonding" and "antibonding" orbitals, analogous to the linear combination of atomic orbitals for simple molecules.

引用

页数：4

共 21 条

[1] VIBRATIONAL-SPECTRA OF ATOMIC H AND D ON CU(110) - EVIDENCE FOR H QUANTUM DELOCALIZATION [J].