THE IRREVERSIBILITY LINE OF HGBA2CUO4+DELTA

Journal article

Using magnetization hysteresis loops we have determined the irreversibility line of polycrystalline samples of HgBa2CuO4+δ and Hg0.8Pb0.2Ba2CuO4+δ. The irreversibility line is found at rather high temperatures. It does not show the drastic depression with increasing temperature as is observed in highly anisotropic Bi/Tl-based CuO superconductors. At 77 K the irreversibility field is around 0.3 T, which is substantially higher than in Bi2Sr 2CaCu2O8 and Bi2Sr 2Ca2Cu3O10. The advantages of this material for large-scale applications are outlined.

Authors: Welp, U; Crabtree, G; Wagner, J; Hinks, D; Radaelli, P

• Publication status: Published
• Journal: APPLIED PHYSICS LETTERS
• Volume: 63
• Issue: 5
• Pages: 693-695
• Publication date: 1993-08-02
• DOI: 10.1063/1.109931
• ISSN: 0003-6951