摘要
用Ｒｅｃｕｒｓｉｏｎ方法计算了几个表面系统的电子态密度，这些系统在费米能附近的态密度主要是由原子的ｄ轨道贡献的．Ｐｄ（１１１）的态密度峰基本上就在费米能附近，而Ａｕ（１１１）－Ｐｄ的态密度峰在费米能级以下约０．９ｅＶ附近，这种差别被归因于原子间距的增大和顶层与衬底间原子ｄ轨道能的较大差异．
The saute densities of several surface systems have been studied with recursion method. It is found that the state densities near Fermi level are mainly derived from the atomic d orbitals. For Pd(111),the state density peak derived from Pd d levels is near EF but for An (111)-Pd, the same Peak is about 0. 9eV below EF. The difference between the peak positions for the two systems has been thought as a result of the different Pd spacing and the great difference between the d level of the overlayer and that of the substrate.
出处
《烟台大学学报（自然科学与工程版）》
CAS
1996年第1期34-38,共5页
Journal of Yantai University(Natural Science and Engineering Edition)
