| La2—xSrxCuO4的局域电子态密度 |
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| 引用本文： | 王怀玉,刘福绥.La2—xSrxCuO4的局域电子态密度[J].烟台大学学报(自然科学与工程版),1990(2):24-28. |
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| 作者姓名： | 王怀玉 刘福绥 |
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| 作者单位： | 烟台大学
(王怀玉)，北京大学
(刘福绥，王恩哥)，冶金部钢铁研究总院(王崇愚) |
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| 摘 要： | 本文用紧束缚近似计算了La_2-_xSr_xCuO_4(x=0, 0.15)的局域电子态密度.计算结果与能带论和实验符合,但比能带的结果更为细致.本文讨论了掺杂Sr以后的效果.与YBa_2Cu_3O_(7-x)材料相比较,可以认为这两种材料主要的超导机理是相同的.
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| 关 键 词： | 超导体 电子结构 超导机制 |
Local Electronic Density of States of La_(2-x)Sr_xCuO_4 |
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| Wang Huaiyu Liu Fusui Wang Enge,Yantai University,Peking University,Wang Chongyu.Local Electronic Density of States of La_(2-x)Sr_xCuO_4[J].Journal of Yantai University(Natural Science and Engineering edirion),1990(2):24-28. |
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| Authors: | Wang Huaiyu Liu Fusui Wang Enge Yantai University Peking University Wang Chongyu |
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| Abstract: | The local electronic density of states of La2-xsrxCuO4(x=0,0.15) was calculated by tight-binding approximation. The calculated results are in agreement with energy band theory and experimental results, but our results are better than that of energy band theory. We have discussed the effectiveness of Sr-doping. Compared with YBa2Cu3O7-x, we infer that the leading superconducting mechanism is the same for the two kinds of materials. |
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| Keywords: | Electronic structure Local electronic density of states Partial wave (or bital) density of states Bonding state Leading superconducting mechanism Atomic-like localized character Two dimensional feature |
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