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HgBa2CaCu2O6+δby XPS

 

作者: R. P. Vasquez,   M. Rupp,   A. Gupta,   C. C. Tsuei,  

 

期刊: Surface Science Spectra  （AIP Available online 1998）
卷期: Volume 5, issue 4  

页码: 285-292

 

ISSN:1055-5269

 

年代: 1998

 

DOI:10.1116/1.1247886

 

出版商: American Vacuum Society

 

关键词: high temperature superconductors;XPS;epitaxial films

 

数据来源: AIP

 

摘要:

XPS core level and valence band spectra are presented for a chemically etched epitaxial thin film of superconducting HgBa2CaCu2O6+δ(Tc= 123 K) on a SrTiO3(100) substrate. These data exhibit lower levels of high binding energy contaminant signals in the O 1sand alkaline earth core level regions compared to studies in the literature, and a clear Fermi edge in the valence band region, evidence of a high quality surface.

 

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