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EXAFS and surface‐EXAFS studies in the soft x‐ray region using electron yield spectroscopy

 

作者: Joachim Stöhr,  

 

期刊: Journal of Vacuum Science and Technology  (AIP Available online 1979)
卷期: Volume 16, issue 1  

页码: 37-41

 

ISSN:0022-5355

 

年代: 1979

 

DOI:10.1116/1.569865

 

出版商: American Vacuum Society

 

数据来源: AIP

 

摘要:

This paper discusses extended x‐ray absorption fine‐structure (EXAFS) measurements using monochromatized synchrotron radiation in the 300–1000‐eV range. EXAFS spectra were obtained by detecting the secondary electron yield from the sample. The electron yield technique is shown to exhibit several unique advantages over conventional absorption measurements. In particular, no thin‐film samples are needed and, more important, measurements of surface phemonema become feasible. Results are presented for the NK‐edge EXAFS in Si3N4and for the OK‐edge surface EXAFS of an oxygen monolayer on Ni (100).

 

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