CURRENT RESPONSE OF QUANTUM-DOT MODULATED BY TIME-DEPENDENT EXTERNAL FIELDS

被引：1
|
作者：
ADACHI, S
FUJIMOTO, K
HATANO, T
ISAWA, Y
机构：
[1] Department of Physical Electronics, Hiroshima University, Higashihiroshima 724
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1995年 / 34卷 / 8B期
关键词：
QUANTUM DOT; INTERBAND EXCITATION; INTRABAND EXCITATION; SHIFT OF COULOMB BLOCKADE; CURRENT CONTINUITY; ELECTRON PUMPING; LOW-FREQUENCY MODULATION;
D O I：
10.1143/JJAP.34.4298
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We study how the de transport through a semiconductor quantum dot varies when time-dependent external fields are applied. We find (i) the shift of the Coulomb blockade region due to the interband excitation, (ii) the resonant peak structures of the Coulomb oscillation due to the intraband excitation, and (iii) the electron pumping effect in the quantum dot modulated by the microwave field with frequency lower than the level spacing of the quantum dot.
引用
收藏
页码：4298 / 4301
页数：4
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