期刊
PHYSICAL REVIEW B
卷 87, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.87.115314
关键词
-
资金
- PICS/CNRS
- JSPS [KAKENHI 23560020]
- Grants-in-Aid for Scientific Research [23560020, 10J06870] Funding Source: KAKEN
The metallic band structure of the hydrogen-adsorbed SrTiO3(001) surface is studied by polarization-dependent photoemission spectroscopy measurements. With the dipole-transition selection arguments, we attributed the metallic peaks into the Ti 3d(xz), 3d(yz), and 3d(xy) bands. These t(2g) bands are partially filled with electrons upon H-induced downward band bending at the surface. Energy splitting of the Ti 3d t(2g) bands is considered to be induced by a quantum confinement along the surface normal (z) direction. The metallic peaks are accompanied by the incoherent states induced by many-body interactions, which likely indicates that the electronic system forms a two-dimensional liquid phase. Also emerged by H exposure are an in-gap state and a sigma(O - H) state. The possible origin and the feature of these states are discussed from the polarization dependence of the photoemission intensity. DOI:10.1103/PhysRevB.87.115314
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据