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

Chin. Phys. Lett.

2000, Vol. 17

Issue (10): 760-762 DOI:

Original Articles

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

LI Shao-Xiong;TAO Hong-Jie;XUAN Yi;ZHAO Bai-Ru;ZHAO Zhong-Xian

National Laboratory for Superconductivity, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080

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LI Shao-Xiong, TAO Hong-Jie, XUAN Yi et al 2000 Chin. Phys. Lett. 17 760-762

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Abstract We report temperature-dependent behavior of the zero bias tunneling conductance (ZBTC), derived from tunneling spectroscopies on as-grown Bi₂Sr₂CaCu₂O_8+δ (Bi2212) single crystals taken with evaporated Zn and Pb planar junctions. At T_c the measured ZBTC shows a kink which gives an in situ measure of the superconducting transition temperature (T_c). Below T_c, the T² dependence of the ZBTC has been observed repeatedly as a new evidence of the d-wave symmetry in Bi2212.

Keywords: 74.25.Jb 74.80.Fb 74.72.Hs

Published: 01 October 2000

PACS:	74.25.Jb	(Electronic structure (photoemission, etc.))
	74.80.Fb
	74.72.Hs

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2000/V17/I10/0760

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