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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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Cite this article: |
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.
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Keywords:
74.72.-h
74.20.Rp
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Published: 01 November 2006
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PACS: |
74.72.-h
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(Cuprate superconductors)
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74.20.Rp
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(Pairing symmetries (other than s-wave))
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