Chin. Phys. Lett.  2006, Vol. 23 Issue (11): 3076-3079    DOI:
Original Articles |
Influence of Gauge Fluctuation on Electron Pairing Order Parameter and Correlation Functions of a Two-Dimensional System
LIN Ming-Xi1;QI Sheng-Wen2;LIU Yu-Liang3
1College of Physics and Electronics, Shandong Normal University, Jinan 250014 2Department of Physics, Dezhou University, Dezhou 253023 3Department of Physics, Renmin University of China, Beijing 100872
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LIN Ming-Xi, QI Sheng-Wen, LIU Yu-Liang 2006 Chin. Phys. Lett. 23 3076-3079
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Abstract Based on a two-dimensional electron system with pure gauge field, we demonstrate that the long range order of the electron pairing order parameter can be destroyed by the gauge fluctuation for both s-wave and d-wave symmetric Cooper pair parameters, even if the pure gauge field mediates attractive interaction between the spin-up and spin-down electrons, while the signal of the Meissner effect is observable. This model can be used to explain the recent experimental data of the high Tc cuprate superconductors observed.
Keywords: 74.72.-h      74.20.Rp     
Published: 01 November 2006
PACS:  74.72.-h (Cuprate superconductors)  
  74.20.Rp (Pairing symmetries (other than s-wave))  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2006/V23/I11/03076
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