ac field-induced localization of an electron in a double-well quantum structure

被引：13
作者：
Tsukada, N
Gotoda, M
Isu, T
Nunoshita, M
Nishino, T
机构：
[1] MITSUBISHI ELECTR CORP, SEMICOND RES LAB, AMAGASAKI, HYOGO 661, JAPAN
[2] KOBE UNIV, DEPT ELECT & ELECT ENGN, NADA KU, KOBE 657, JAPAN
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1996年 / 35卷 / 11B期
关键词：
electron localization; double-well quantum structure; de and ac field dependence; mesoscopic devices;
D O I：
10.1143/JJAP.35.L1490
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We investigate the time-dependent Schrodinger equation for a coupling between two levels in a double-well quantum structure perturbed by a dc bias and an ac field. Almost complete localization of an electron is achieved for appropriate values of dc and ac held parameters. It is also shown that semi-infinite ac pulses can be used to localize an electron in one of the wells. General conditions required to localize the electron in one of the wells are also given based on an analytical treatment.
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页码：L1490 / L1493
页数：4
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