Spectral Weights, d-wave Pairing Amplitudes, and Particle-hole Tunneling Asymmetry of a Strongly Correlated Superconductor

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题名:	Spectral Weights, d-wave Pairing Amplitudes, and Particle-hole Tunneling Asymmetry of a Strongly Correlated Superconductor
作者:	Chou, Chung-Pin;Lee, T. K.;Ho, Chang-ming
贡献者:	淡江大學物理學系
日期:	2006-09
上传时间:	2013-07-09 15:16:37 (UTC+8)
出版者:	College Park: American Physical Society
摘要:	The spectral weights (SW's) for adding and removing an electron of the Gutzwiller projected d-wave superconducting (SC) state of the t-J-type models are studied numerically on finite lattices. Restrict to the uniform system but treat exactly the strong correlation between electrons, we show that the product of weights is equal to the pairing amplitude squared, same as in the weakly coupled case. In addition, we derive a rigorous relation of SW with doping in the electron doped system and obtain particle-hole asymmetry of the conductance-proportional quantity within the SC gap energy and, also, the anti-correlation between gap sizes and peak heights observed in tunneling spectroscopy on high Tc cuprates.
關聯:	Physical Review B (Condensed Matter and Materials Physics) 74(9), 092503(4pages)
DOI:	10.1103/PhysRevB.74.092503
显示于类别:	[物理學系暨研究所] 期刊論文

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