the National Natural Science Foundation of China (Grants Nos.10474036, 60571007 and 10390163);the National Basic Research Program of China (Grant No. 2006CB601006);the Specialized Research Fund for the Doc-toral Program of Higher Education of China (Grant No. 2004028033)
We adopted a new method, acid etching process, to fabricate the intrinsic Josephson junctions based on the Bi2Sr2CaCu2O8+x single crystals. By soaking the crystals into the dilute hydrochloric acid, we fabricated a ju...