Power Law Behavior of the Zero Bias Tunneling Conductance: the New Evidence for d-Wave Symmetry

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2000,（10）
• 所属期刊栏目: Condensed matter: structure, mechanical
• 页码范围: 760-761
• 页数: 2页
• 语种: 英文

摘要

We report temperature-dependent behavior of the zero bias tunneling conductance (ZBTC), derived from tun neling spectroscopies on as-grown Bi2Sr2CaCu2O8+5 (Bi2212) single crystals taken with evaporated Zn and Pb planar junctions. At Tc the measured ZBTC shows a kink which gives an in situ measure of the superconducting transition temperature (Tc). Below Tc, the T2 dependence of the ZBTC has been observed repeatedly as a new evidence of the d-wave symmetry in Bi2212.