Mayne A J, Rose F, Dujardin G
Laboratoire de Photophysique Moléculaire, Bât. 210, Université de Paris-Sud, 91405 Orsay, France.
Faraday Discuss. 2000(117):241-8; discussion 257-75. doi: 10.1039/b004092o.
Inelastic interactions of electrons emitted from the tip of a scanning tunnelling microscope (STM) are used to desorb individual hydrogen atoms from a Ge(111) surface. It is observed that the inelastic interactions depend not only on the electron energy and the current intensity but also on the electron emission regime of the STM tip. Quite surprisingly, it is found that tunnel electrons interact inelastically much less efficiently than field emitted electrons even though the electrons are in resonance with the Ge-H unoccuppied orbital.
扫描隧道显微镜（STM）针尖发射的电子的非弹性相互作用被用于从Ge(111)表面解吸单个氢原子。据观察，非弹性相互作用不仅取决于电子能量和电流强度，还取决于STM针尖的电子发射模式。相当令人惊讶的是，发现隧道电子的非弹性相互作用效率比场发射电子低得多，尽管电子与Ge-H未占据轨道发生共振。
