Evidence for Surface Chemical-Reactions between Gold and Bicasrcuo
We explored the reactivity of gold on cleaved 2212 BiCaSrCuO by synchrotron-radiation photoemission spectroscopy. We found no evidence for reactivity when the substrate was at room temperature, similar to what has been reported for very low temperatures (20 K). At intermediate temperatures (100 K), however, clear evidence was found of a chemical reaction with formation of a localized nonmetallic phase. These findings have potentially important implications for the manufacturing of devices based on BiCaSrCuO.
Univ wisconsin,ctr synchrotron radiat,madison,wi 53706. ecole polytech fed lausanne,inst phys appl,ch-1015 lausanne,switzerland. Hwu, y, univ wisconsin,dept phys,madison,wi 53706.
ISI Document Delivery No.: GB296
Record created on 2006-10-03, modified on 2016-08-08