| 金属中声学等离激元的产生条件 |
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| 引用本文： | 任燕如,尹道乐. 金属中声学等离激元的产生条件[J]. 物理学报, 1981, 30(4): 545-548 |
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| 作者姓名： | 任燕如 尹道乐 |
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| 作者单位： | 北京大学物理系 |
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| 摘 要： | 本文从相互作用布洛赫电子气的介电函数出发,导出了金属中存在确定的声学等离激元的条件,并对A-15化合物是否满足这个条件作了讨论,认为在A-15化合物中声学等离激元的存在尚缺乏足够的证据。关键词：
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| 收稿时间： | 1980-08-28 |
CONDITION FOR THE FORMATION OF ACOUSTIC PLASMONS IN METALS |
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| REN YAN-RU and YIN DAO-LE. CONDITION FOR THE FORMATION OF ACOUSTIC PLASMONS IN METALS[J]. Acta Physica Sinica, 1981, 30(4): 545-548 |
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| Authors: | REN YAN-RU and YIN DAO-LE |
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| Abstract: | By analysing the dielectric function of an interacting Bloch electron gas, the condition for the formation of acoustic plasmons (AP) as well-defined quasiparticles in metals has been derived. Discussions are given on whether this condition is satisfied for A-15 compounds, with the conclusion that the evidence for the existence of AP as a kind of quasiparticle in these compounds is insufficient until now. |
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