Excited states of surface electrons and dynamics of adsorbates

在已知低维系统的原子和电子结构的基础上，我们研究了定域在固体表面的原子和电子的动力学。新制备的一维纳米尺度表面系统的电子态分布和电子动量弛豫表现出单轴各向异性。原子在表面的运动是由注入表面电子态的电子能量通过从电子的动能到晶格系统的表面振动能的能量转移引起的。

We have studied dynamics of the atoms and electrons of low-dimensional systems localized at solid surface on the basis of the knowledge of their atomic and electronic structures. Uniaxial anisotropy is found in the distribution of electronic states and the relaxation of electron momentum for newly-fabricated surface systems with one-dimensional and nanometer-scale structures. Motion of atoms at surface is induced by electron energy injected to the surface electronic states through the energy transfer from kinetic energy of the electrons to surface vibration energy of the lattice systems.