| 强耦合一维电子-晶格体系中孤子激活能 |
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| 引用本文： | 傅柔励,马允胜,孙鑫.强耦合一维电子-晶格体系中孤子激活能[J].物理学报,1992,41(7):1143-1146. |
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| 作者姓名： | 傅柔励 马允胜 孙鑫 |
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| 作者单位： | (1)复旦大学物理系,上海200433; (2)中国科学院红外物理国家重点实验室,上海200083 |
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| 摘 要： | 计算了在不同电子-晶格耦合强度λ下,一维电子-晶格体系中孤子激活能ε1(λ)及电子激发到禁带中央分立能级所需能量△(λ)。得到孤子激活能随λ增大而增大;但对不同λ,孤子激活能总是小于产生一个电子或空穴所需能量。
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| 关 键 词： | 电子 晶格 孤子 激活能 强耦合 |
| 收稿时间： | 1991-07-26 |
EXCITATION ENERGY OF SOLITON IN STRONGLY COUPLED ELECTRON-LATTICE SYSTEM |
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| FU ROU-LI,MA YUN-SHENG and SUN XIN.EXCITATION ENERGY OF SOLITON IN STRONGLY COUPLED ELECTRON-LATTICE SYSTEM[J].Acta Physica Sinica,1992,41(7):1143-1146. |
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| Authors: | FU ROU-LI MA YUN-SHENG and SUN XIN |
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| Abstract: | The excitation energy of soliton ε1 and its dependence upon electronlattice coupling: strength λ have been calculated in strongly coupled one dimensional electron-lattice systems. Our results show: The excitation energy of soliton ε1(λ) augments as λ increases. Whereas, ε1, will be always less than the energy needed to excite an electron or a hole in this system. |
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