![Structure and charge transfer correlated with oxygen content for a Y
<sub/>0.8</sub>
Ca
<sub/>0.2</sub>
Ba
<sub/>2</sub>
Cu
<sub/>3</sub>
O
<sub/><i>y</i>
</sub>
(
<i>y</i>
= 6.84–6.32) system: a positron study]()
Structure and charge transfer correlated with oxygen content for a Y
<sub/>0.8</sub>
Ca
<sub/>0.2</sub>
Ba
<sub/>2</sub>
Cu
<sub/>3</sub>
O
<sub/><i>y</i>
</sub>
(
<i>y</i>
= 6.84–6.32) system: a positron studyCao, Shixun; Li, Lingwei; Liu, Fen; Li, Wenfeng; Chi, Changyun; Jing, Chao; Zhang, Jincang · Superconductor Science and Technology · 2005