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X-ray emission and photoelectron spectra, and the location of fluorine atoms in strontium and calcium copper oxyfluorides

Abstract:

X-ray emission and photoelectron spectra of Sr2CuO2F2+δ, Sr1.4Ba0.6CuO2F2+δ, CaSrCuO2F2+δ, and Ca2CuO2F2+δ cuprates are presented. It is found that the XPS F 1s binding energies of Sr2CuO2F2+δ and Ca2CuO2F2+δ are different (ΔE ∼ 1.3 eV) and those of Sr1.4Ba0.6CuO2F2+δ and CaSrCuO2F2+δ have intermediate values. These differences in x-ray photoelectron spectra are attributed to the different preferential location of fluorine atoms in structures related to La2CuO4 and Nd2CuO4. The results obtain...

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Publication status:
Published

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Publisher copy:
10.1088/0953-8984/8/26/016

Authors


Kurmaev, EZ More by this author
Elokhina, LV More by this author
Fedorenko, VV More by this author
Bartkowski, S More by this author
Neumann, M More by this author
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Journal:
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume:
8
Issue:
26
Pages:
4847-4854
Publication date:
1996-06-24
DOI:
EISSN:
1361-648X
ISSN:
0953-8984
URN:
uuid:45b58d37-7589-400f-b4af-589957c7378a
Source identifiers:
46648
Local pid:
pubs:46648
Language:
English

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