Spin polaron in a quantum dot of the diluted magnetic semiconductors

被引：27
作者：
Gnanasekar, K [1 ]
Navaneethakrishnan, K
机构：
[1] Amer Coll, Madurai 625002, Tamil Nadu, India
[2] Madurai Kamaraj Univ, Sch Phys, Madurai 625021, Tamil Nadu, India
来源：
MODERN PHYSICS LETTERS B | 2004年 / 18卷 / 10期
关键词：
spin polaron; quantum dot; diluted magnetic semiconductors;
D O I：
10.1142/S0217984904006962
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Theoretical investigations of spin polaron in a quantum dot in the "spin doping" superlattice systems Cd1-xinMnXinTe/Cd1-XoutMnXoutTe are presented. We estimated the donor ionization energy by variational technique and the spin polaronic shift using the mean field theory with modified Brillouin function. Our results show that significant enhancement of donor ionization energy and spin polaronic shift occur in a dot when compared to a quantum well, wire and bulk systems.
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收藏
页码：419 / 426
页数：8
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