Abstract
XPS and chemical titration both were carried out on Bi2+xSrl.8CaCu2Oz and Bi2Srl.8-yCal+yCu20zprepared by solid state reaction in order to investigate the correlation between the structural modulation and the mutual substitution of atoms. There was no clear evidence about the correlation between the modulation period by XRD and the site occupancies of Sr and Ca by XPS. However, there was a tendency that Bi mean valence by titration inereased with increasing excess oxygen content and modulation period. The former one indicates the charge compensation and the latter one suggests the possibility of the origin of the structural modulation except for the excess oxygen.
| Original language | English |
|---|---|
| Pages (from-to) | 1423-1424 |
| Number of pages | 2 |
| Journal | Czechoslovak Journal of Physics |
| Volume | 46 |
| Issue number | SUPPL. 3 |
| DOIs | |
| Publication status | Published - 1996 |
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- Physics and Astronomy(all)
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On the correlations between Sr : Ca substitution and structural modulation in the Bi-2212 phase. / Oikawa, Y.; Saligan, P. P.; Koizumi, K.; Enomoto, H.; Takano, Y.; Sekizawa, K.; Uchida, Etsuo; Ozaki, H.
In: Czechoslovak Journal of Physics, Vol. 46, No. SUPPL. 3, 1996, p. 1423-1424.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - On the correlations between Sr
T2 - Ca substitution and structural modulation in the Bi-2212 phase
AU - Oikawa, Y.
AU - Saligan, P. P.
AU - Koizumi, K.
AU - Enomoto, H.
AU - Takano, Y.
AU - Sekizawa, K.
AU - Uchida, Etsuo
AU - Ozaki, H.
PY - 1996
Y1 - 1996
N2 - XPS and chemical titration both were carried out on Bi2+xSrl.8CaCu2Oz and Bi2Srl.8-yCal+yCu20zprepared by solid state reaction in order to investigate the correlation between the structural modulation and the mutual substitution of atoms. There was no clear evidence about the correlation between the modulation period by XRD and the site occupancies of Sr and Ca by XPS. However, there was a tendency that Bi mean valence by titration inereased with increasing excess oxygen content and modulation period. The former one indicates the charge compensation and the latter one suggests the possibility of the origin of the structural modulation except for the excess oxygen.
AB - XPS and chemical titration both were carried out on Bi2+xSrl.8CaCu2Oz and Bi2Srl.8-yCal+yCu20zprepared by solid state reaction in order to investigate the correlation between the structural modulation and the mutual substitution of atoms. There was no clear evidence about the correlation between the modulation period by XRD and the site occupancies of Sr and Ca by XPS. However, there was a tendency that Bi mean valence by titration inereased with increasing excess oxygen content and modulation period. The former one indicates the charge compensation and the latter one suggests the possibility of the origin of the structural modulation except for the excess oxygen.
UR - http://www.scopus.com/inward/record.url?scp=77958090138&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77958090138&partnerID=8YFLogxK
U2 - 10.1007/BF02562826
DO - 10.1007/BF02562826
M3 - Article
AN - SCOPUS:77958090138
VL - 46
SP - 1423
EP - 1424
JO - Czechoslovak Journal of Physics
JF - Czechoslovak Journal of Physics
SN - 0011-4626
IS - SUPPL. 3
ER -