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Photoelectron escape depth in Bi2Sr2CaCu2O8+x

Publiceringsår: 2003
Språk: Engelska
Sidor: 49-52
Publikation/Tidskrift/Serie: Physica C: Superconductivity
Volym: 398
Nummer: 1-2
Dokumenttyp: Artikel
Förlag: Elsevier Science B.V.


Photoelectron spectra of Sr and Ca shallow core levels in Bi2Sr2CaCu2O81, (Bi2212) single crystals exhibit a strong attenuation effect because the photoelectron escape depth is very short in this material. This results may have a strong impact on the interpretation of ARPES and STM spectra near the Fermi level since it suggests the electronic states of planes other than CuO play a role in both tunneling and photoemission on the BiO terminated surface in Bi2212. (C) 2003 Elsevier B.V. All rights reserved.



  • Physics and Astronomy


  • ISSN: 0921-4534

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