| 广义Fibonacci准周期链能谱性质 |
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| 引用本文： | 傅秀军,郭子政,周培勤,刘有延.广义Fibonacci准周期链能谱性质[J].物理学报,1992,41(8):1330-1337. |
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| 作者姓名： | 傅秀军 郭子政 周培勤 刘有延 |
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| 作者单位： | (1)华南理工大学应用物理系,广州510641; (2)内蒙古师范大学物理系,呼和浩特010022 |
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| 摘 要： | 本文研究一种广义Fibonacci准周期链(孪生子模型)的电子及声子谱。重整化群分析表明,电子能谱具有3分支的自相似结构,但每一层中的中间子带又类似于周期系统。数值计算结果证明这种分析的正确性。对于声子谱,则显示出与Fibonacci链相同的性质。
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| 关 键 词： | Fibonacci链 电子谱 声子谱 准晶体 |
| 收稿时间： | 7/5/1991 12:00:00 AM |
SPECTRAL PROPERTIES OF THE GENERALIZED FIBONACCI QUASIPERIODIC CHAINS |
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| FU XIU-JUN,GUO ZI-ZHENG,ZHOU PEI-QIN and LIU YOU-YAN.SPECTRAL PROPERTIES OF THE GENERALIZED FIBONACCI QUASIPERIODIC CHAINS[J].Acta Physica Sinica,1992,41(8):1330-1337. |
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| Authors: | FU XIU-JUN GUO ZI-ZHENG ZHOU PEI-QIN and LIU YOU-YAN |
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| Abstract: | This paper is devoted to the study of electronic and phonon spectra of a kind of generalized Fibonacci quasiperiodic chain (Twins model). Renormalization group results show that the electronic spectrum has a trifurcating selfs milar structure but the middle subbends in every hierarchy are similar to spetral structure of the periodic systems. The analysis is confirmed by numerical results. While the phoson spectrum shows the same spectral structure as that of the Fibonacci chain. |
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