| 二维六角晶格的光电导 |
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| 引用本文： | 白春海,张军.二维六角晶格的光电导[J].新疆大学学报(理工版),2009(4):457-461,467. |
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| 作者姓名： | 白春海 张军 |
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| 作者单位： | 新疆大学物理科学与技术学院,新疆乌鲁木齐830046 |
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| 基金项目： | Supported by The National Natural Science Foundation of P. R. China（10547010）. |
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| 摘 要： | 研究半满填充情形二维六角晶格模型的跃迁积分在交错磁场调制下的动能和光电导．交错磁场导致了四能量分支的四子格点系统的产生，并产生了光电导对磁流量子新的依赖特性．具体讨论了平均动能．Drude weight和光电导对磁流量子的依赖关系．
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| 关 键 词： | 光电导 紧束缚模型 交错磁场 六角晶格 |
Optical Conductivity of Honeycomb Lattice |
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| BAI Chun-hai,ZHANG Jun.Optical Conductivity of Honeycomb Lattice[J].Journal of Xinjiang University(Science & Engineering),2009(4):457-461,467. |
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| Authors: | BAI Chun-hai ZHANG Jun |
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| Institution: | (College of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046, China) |
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| Abstract: | We investigate the kinetic energy and optical conductivity in the two-dimensional （2D） honeycomb tight-binding lattice-electron model with hopping integrals modulated by staggered magnetic flux （SMF）. The SMF generates a four-sublattice system with four branches of energy band in every case , and even generates new flux-dependent optical properties. Results for the flux parameter dependence of the mean kinetic energy, the Drude weight and the optical conductivity are discussed in detail. |
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| Keywords: | tight-binding model staggered magnetic flux honeycomb lattices |
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