A phenomenological parameter characterizing the relaxation of stresses caused by the lattice mismatch at a heteroboundary

被引：5

作者：

Konstantinov, OV ^{[1
]}

Kotel'nikov, EY ^{[1
]}

Matveentsev, AV ^{[1
]}

Romanov, AE ^{[1
]}

机构：

[1] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

来源：

TECHNICAL PHYSICS LETTERS | 2001年 / 27卷 / 08期

关键词：

D O I：

10.1134/1.1398968

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An analytical formula is derived describing an increase in the bandgap width for a quantum cluster considered as an inclusion of the simplest shape (spherical or flat) featuring an arbitrary lattice mismatch with the surrounding matrix. A phenomenological relationship is introduced between this quantity and the stressed boundary relaxation parameter considered as the fitting parameter. The relaxation is small (or even absent) in a system with quantum wells and is completely manifested in a system with quantum dots. (C) 2001 MAIK "Nauka/Interperiodica".

引用

页码：683 / 685

页数：3

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