Thermal double donors and quantum dots -: art. no. 235501

被引：25

作者：

Coutinho, J ^{[1
]}

Jones, R

Murin, LI

Markevich, VP

Lindström, JL

Öberg, S

Briddon, PR

机构：

[1] Univ Exeter, Sch Phys, Exeter EX4 4QL, Devon, England

[2] Inst Solid State & Semicond Phys, Minsk 220072, BELARUS

[3] Univ Manchester, Ctr Elect Mat, Manchester M60 1QD, Lancs, England

[4] Lund Univ, Dept Phys, S-22100 Lund, Sweden

[5] Lulea Univ Technol, Dept Math, S-97187 Lulea, Sweden

[6] Newcastle Univ, Dept Phys, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.87.235501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Combined local mode spectroscopy and ab initio modeling are used to demonstrate for the first time that oxygen atoms in thermal double donors (TDD) in Si are in close proximity. The observed vibrational modes in O-16,O-18, and mixed isotopic samples are consistent with a model involving [110] aligned oxygen chains made up of an insulating core lying between electrically active ends. The model also explains the minute spin density observed on oxygen in TDD+ as well as the piezospectroscopic tensors of the donors. The analogy between the thermal donors and quantum dots is emphasized.

引用

页码：235501 / 1

页数：4

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