| 电子型掺杂铜氧化物超导体准粒子激发谱研究 |
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| 引用本文： | 路洪艳,刘保通,公丕锋.电子型掺杂铜氧化物超导体准粒子激发谱研究[J].低温与超导,2011,39(4):20-23. |
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| 作者姓名： | 路洪艳 刘保通 公丕锋 |
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| 作者单位： | 淮北师范大学物理与电子信息学院;南京固体微结构国家实验室; |
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| 基金项目： | 国家自然科学基金项目(10974086); 南京固体微结构国家实验室开放项目(M22010); 安徽省高等学校省级自然科学研究项目(KJ2010B184)资助 |
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| 摘 要： | 文中工作采用t-t′-t″-J模型研究了电子型掺杂铜氧化物超导体在超导序和反铁磁序共存情况下的准粒子激发谱,分别计算了在欠掺杂区、最佳掺杂区和过掺杂区的谱权重,计算结果与角分辨光电子谱实验结果符合较好.
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| 关 键 词： | 电子型掺杂铜氧化物超导体 准粒子激发 角分辨光电子谱 |
Quasiparticle excitation spectra in electron-doped cuprate superconductors |
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| Lu Hongyan,Liu Baotong,Gong Pifeng.Quasiparticle excitation spectra in electron-doped cuprate superconductors[J].Cryogenics and Superconductivity,2011,39(4):20-23. |
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| Authors: | Lu Hongyan Liu Baotong Gong Pifeng |
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| Institution: | Lu Hongyan1,2,Liu Baotong1,Gong Pifeng1(1.School of Physics and Electronic Information,Huaibei Normal University,Huaibei 235000,China,2.National Laboratory of Solid State Microstructures,Nanjing 210093,China) |
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| Abstract: | The quasiparticle excitation spectra in t-t′-t″-J model with the coexistence of superconducting and antiferromagnetic orders were studied.The spectra weight in underdoped,optimal and overdoped region was calculated.The results are consistent with angle-resolved photoemission spectra experiments. |
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| Keywords: | Electron-doped cuprate superconductors Quasiparticle excitations Angle-resolved photoemission spectra |
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