Iodine Intercalation in Bi2Sr2Y0.5Ca0.5Cu2O8+δ: Evidence of Hole Transfer from Iodine to Copper-Oxygen Sheets

✍ Scribed by M.A. Subramanian

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 111 KB
• Volume: 110
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1994.1158

✦ Synopsis

We have successfully intercalated iodine between the Bi-O layers of the semiconducting (\mathrm{Bi}{2} \mathrm{Sr}{2} \mathrm{Y}{0.5} \mathrm{Ca}{0.5} \mathrm{Cu}{2} \mathrm{O}{8+\delta} . \mathrm{X})-ray diffraction and thermogravimetric analysis confirmed the formation of a stage-1 intercalated compound, (\mathrm{IBi}{2} \mathrm{Sr}{2} \mathrm{Y}{0.5} \mathrm{Ca}{0.5} \mathrm{Cu}{2} \mathrm{O}{8+6}). Upon intercalation, the compound became superconducting, indicating that there is a modest transfer of holes from iodine located in (\mathrm{Bi}-\mathrm{O}) layers to Cu-O sheets. 01994 Academic Press, Inc.