ENERGY-LOSS FUNCTIONS DERIVED FROM REELS SPECTRA FOR ALUMINUM

作     者：Z.M.Zhang Z.J.Ding H.M.Li K.Salma X.Sun R.Shimizu T.Koshikawa K.Goto 

作者机构：StructureResearchLaboratoryandDepartmentofPhysicsUniversityofScienceandTechnologyofChinaTheChineseAcademyofSciencesHefei230026China DepartmentofInformationScienceOsakaInstituteofTechnologyOsaka573-0196Japan FundamentalElectronicsResearchInstituteOsakaElectro-CommunicationUniversityOsaka572-8530Japan DepartmentofSystemsEngineeringNagoyaInstituteofTechnologyNagoya466-8555Japan 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2005年第18卷第3期

页      面：217-222页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：This work was supported by the National Natural Science Foundation of China(No.10025420,No.20075026,No.60306006 and No.90206009) the post-doctoral fellowship provided by a Grant-in-Aid for Creative Scientific Research of Japanese govermment(No.13GS0022).The authors would also like to thank Dr.H.Yoshikawa,National Institute for Materials Science of Japan,and Dr.T.Nagatomi,Osaka University,for their helpful comments 

主　　题：effective energy loss function Monte Carlo simulation extended Landau approach reflection electron energy loss spectro scopy Aluminum 

摘      要：The effective energy loss functions for Al have been derived from differential i nverse inelastic mean free path based on the extended Landau approach. It has be en revealed that the effective energy loss function is very close in value to th e theoretical surface energy loss function in the lower energy loss region but g radually approaches the theoretical bulk energy loss function in the higher ener gy loss region. Moreover, the intensity corresponding to surface excitation in e ffective energy loss functions decreases with the increase of primary electron e nergy. These facts show that the present effective energy loss function describe s not only surface excitation but also bulk excitation. At last, REELS spectra s imulated by Monte Carlo method based on use of the effective energy loss functio ns has reproduced the experimental REELS spectra with considerable success.