| A POSSIBLE SOLITON-LIKE POLARON MODEL FOR SUPERCONDUCTORS Y1-xCaxBa2Cu3-xMxO7-δ(M=Fe,Ni) |
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| 引用本文： | 王忆,陈传誉,黄效吾,汪克林.A POSSIBLE SOLITON-LIKE POLARON MODEL FOR SUPERCONDUCTORS Y1-xCaxBa2Cu3-xMxO7-δ(M=Fe,Ni)[J].物理学报(海外版),1999,8(3):193-198. |
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| 作者姓名： | 王忆 陈传誉 黄效吾 汪克林 |
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| 作者单位： | (1)Center for Fundamental Physics, University of Science and Technology of China, Hefei 230026, China; (2)Department of Physics, Anhui University, Hefei 230039, China; (3)Department of Physics, Guangzhou Teachers College, Guangzhou 510400, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No. 19804009), and the Natural Science Foundation of Guangdong Province (Grant No. 974199), China. |
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| 摘 要： | Using 1+1 soliton-like polaron model of a deformable continuum, the critical temperature and the energy gap in high-temperature superconductors Y1-xCaxBa2Cu3-xMxO7-δ(M=Fe,Ni) are studied in the framework of finite temperature Green's function theory. The ratio 2Δ/kBTc=3.9 is obtained. Theoretical results are found in good agreement with the experimental data.
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| 收稿时间： | 1998-07-15 |
A POSSIBLE SOLITON-LIKE POLARON MODEL FOR SUPERCONDUCTORS Y1-xCaxBa2Cu3-xMxO7-$\delta$(M=Fe,Ni) |
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| Institution: | Department of Physics, Guangzhou Teachers College, Guangzhou 510400, China; Department of Physics, Anhui University, Hefei 230039, China; Center for Fundamental Physics, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | Using 1+1 soliton-like polaron model of a deformable continuum, the critical temperature and the energy gap in high-temperature superconductorsY1-xCaxBa2Cu3-xMxO7-$\delta$(M=Fe, Ni) are studied in the framework of finite temperature Green's function theory. The ratio 2$\varDelta$/kBTc=3.9 is obtained. Theoretical results are found in good agreement with the experimental data. |
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