Zheltysheva Olga R, Surnin Dmitry V, Guy Dmitry E, Gil'mutdinov Faat Z, Ruts Yuri V, Grebennikov Vladimir I
Physical-Technical Institute of Ural Branch of RAS, The Laboratory of Atomic Structure and Surface Analysis, Physical-Technical Institute of UB RAS, Kirov st. 132, 426000 Izhevsk, Russia.
Microsc Microanal. 2005 Dec;11(6):562-6. doi: 10.1017/S1431927605050622.
The surfaces of crystalline samples of 3d-metals (Mn, Fe, Co, Ni, and Cu) and their stoichiometric oxides have been studied by Auger spectroscopy. A correlation between the change in the LVV (L-inner level-valence-valence electron transition) Auger intensities and the change of the squares of the corresponding atomic-magnetic moments has been observed. This is because of the complicated nature of the Auger process. That is, the Auger electron emission is a result of the inner atomic level excitation by electron impact and Auger annihilation of the inner-level hole. Therefore, the Auger process has been considered a second-order process, and spin polarization of the valence states has been taken into account for the LMM (L-inner level-M-inner level-M-inner level electron transition) Auger spectra of 3d-metals.
利用俄歇电子能谱对3d金属(锰、铁、钴、镍和铜)及其化学计量比氧化物的晶体样品表面进行了研究。观察到LVV(L内能级-价-价电子跃迁)俄歇强度的变化与相应原子磁矩平方的变化之间存在相关性。这是由于俄歇过程的复杂性所致。也就是说,俄歇电子发射是电子碰撞使内原子能级激发以及内能级空穴俄歇湮灭的结果。因此,俄歇过程被视为二级过程,并且在3d金属的LMM(L内能级-M内能级-M内能级电子跃迁)俄歇谱中考虑了价态的自旋极化。