Size and temperature dependent plasmons of quantum particles
Size and temperature dependent plasmons of quantum particles
复制标题
量子粒子的尺寸和温度相关的等离子体激元
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
N. Rakov
中科院分区：
文献类型：
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作者：
M. Xiao;N. Rakov
这项工作报告了温度变化对金属粒子等离子激元的影响，这些粒子非常小，由于量子限制，导带中的电子载流子被迫处于离散的子带。在盒中电子模型的框架下，采用每一个电子计数的计算方案，计算了粒子内部的空间电子分布。在计算中，考虑了子带内的波动。数值结果表明，小粒子等离子体激元的频率随温度的变化而移动。这些发现表明，在外部控制量子粒子的等离子体是可能的。
This work reports on the influences of temperature changes on plasmons of metallic particles that are so small that electric carriers in the conduction band are forced to be at discrete sub-bands due to quantum confinement. In the framework of the electron-in-a-box model and with an every-electron-count computational scheme, the spatial electric distribution inside the particle is calculated. In the calculations, the intra-subband fluctuations are taken into account. The numerical results have shown that the small-particle plasmon frequency shifts with the temperature. The findings suggest that it would be possible to control the plasmons of quantum particles externally.