Optical absorption in a disk-shaped quantum dot in the presence of an impurity

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• 作者：I.F.I. Mikhail^a ; ^{ifi_mikhail@hotmail.com} ; A.M. Shafee^b
• 关键词：Disk quantum dot ; Optical absorption ; Central and off-central impurities
• 刊名：Physica B: Condensed Matter
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：507
• 期：Complete
• 页码：142-146
• 全文大小：870 K
• 卷排序：507

文摘

The optical absorption in a two dimensional disk-shaped quantum dot is investigated. A static magnetic field is applied perpendicular to the plane of the disk. The study is performed in the presence of central or off- central impurity. The variational approach has been applied to find the energies and wave functions. The presence and location of impurity play effective roles.