| 正常金属/dx2-y2+idxy混合波超导隧道结中的准粒子寿命效应 |
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| 引用本文： | 吉跃仁,魏健文.正常金属/dx2-y2+idxy混合波超导隧道结中的准粒子寿命效应[J].华中师范大学学报(自然科学版),2006,40(1):29-32. |
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| 作者姓名： | 吉跃仁 魏健文 |
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| 作者单位： | 1. 江苏财经职业技术学院,江苏,淮安,223001
2. 淮阴师范学院,物理系,江苏,淮安,223001 |
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| 基金项目： | 江苏省教育厅自然科学基金 |
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| 摘 要： | 考虑到准粒子的有限寿命效应，在Blonder-Tinkham-Klapwijk（BTK）理论框架下，通过求解Bogoliubov-de Gennes（BdG）方程，计算正常金属／dx^2-y^2＋idxy混合波超导隧道结中的准粒子输运系数与隧道谱．结果表明：准粒子的有限寿命效应不仅能压低隧道谱中的电导峰．而且可以有效地阻止峰的滑移；随着非弹性散射的增强，还会在零偏压处形成一宽峰．
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| 关 键 词： | dx2-y2 idxy混合波超导体 准粒子寿命效应 隧道谱 |
| 文章编号： | 1000-1190（2006）01-0029-04 |
| 收稿时间： | 2004-11-25 |
| 修稿时间： | 2004-11-25 |
Quasiparticle lifetime effects in the normal metal/dx2-y2+idxy mixed wave superconductor tunnel junctions |
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| JI Yue-ren,WEI Jian-wen.Quasiparticle lifetime effects in the normal metal/dx2-y2+idxy mixed wave superconductor tunnel junctions[J].Journal of Central China Normal University(Natural Sciences),2006,40(1):29-32. |
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| Authors: | JI Yue-ren WEI Jian-wen |
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| Institution: | 1. Jiangsu Finance and Economics Technical College, Huaian, Jiangsu 223001; 2. Department of Physics, Huaiyin Teachers College, Huaian, Jiangsu 223001 |
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| Abstract: | Taking into account finite quasiparticle lifetime effects within the Blonder-Tinkham-Klapwijk(BTK) scattering formalism,using Bogoliubov-de Gennes(BdG) equation,we have calculated the quasiparticle transport coefficients and the tunneling spectrum in the normal metal/d_(x~2-y~2)+id_(xy) mixed wave superconductor tunnel junctions.It has been shown that: the quasiparticle lifetime effects not only can suppress the conductance peak,but also can resist the slipping of the peak effectively,and with increasing of inelastic scattering of quaiparticles the peak at zero-bias will widen. |
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| Keywords: | d_(x~2-y~2)+id_(xy) mixed wave superconductor quasiparticle lifetime effects tunneling spectrum |
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