Optical spectroscopy of quantum dots in high magnetic fields

被引：3

作者：

Babinski, A. ^{[1
]}

机构：

[1] Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland

来源：

ACTA PHYSICA POLONICA A | 2006年 / 110卷 / 03期

关键词：

D O I：

10.12693/APhysPolA.110.275

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Optical spectroscopy measurements of single InAs/GaAs self-assembled quantum dots have been performed. The multiexcitonic emission from the s-, p-, and d-shells of a single dot is observed and investigated in magnetic field up to 28 T. The Zeeman splitting of the s-shell excitons has been found to depend on the dot morphology. While the energy-splitting in flat (2 nm height) dots linearly increases with magnetic field, its significant non-linearity is observed for larger in size, tall (4 nm height) dots. The effect of magnetic field on the orbital motion of carriers in dots has also been investigated. It has been found that the modified Fock-Darwin pattern explains the observed evolution of the emission from highly-excited single tall quantum dot.

引用

页码：275 / 286

页数：12

共 41 条

[1] Electronic and structural properties of interdiffused self-assembled quantum dots from magneto-photoluminescence [J].

Awirothananon, S ;

Sheng, WD ;

Babinski, A ;

Studenikin, S ;

Raymond, S ;

Sachrajda, A ;

Potemski, M ;

Fafard, S ;

Ortner, G ;

Bayer, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2004, 43 (4B) :2088-2092

[2] Ground-state emission from a single InAs/GaAs self-assembled quantum dot structure in ultrahigh magnetic fields [J].

Babinski, A. ;

Ortner, G. ;

Raymond, S. ;

Potemski, M. ;

Bayer, M. ;

Sheng, W. ;

Hawrylak, P. ;

Wasilewski, Z. ;

Fafard, S. ;

Forchel, A. .

PHYSICAL REVIEW B, 2006, 74 (07)

[3] Single-dot spectroscopy in high magnetic fields [J].

Babinski, A ;

Awirothananon, S ;

Lapointe, J ;

Wasilewski, Z ;

Raymond, S ;

Potemski, M .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2005, 26 (1-4) :190-193

[4]

BABINSKI A, IN PRESS PHYS STAT C

[5]

BABINSKI A, IN PRESS PHYS REV B

[6] THEORY OF MAGNETOEXCITONS IN QUANTUM WELLS [J].

BAUER, GEW ;

ANDO, T .

PHYSICAL REVIEW B, 1988, 37 (06) :3130-3133

[7] Fine structure of neutral and charged excitons in self-assembled In(Ga)As/(Al)GaAs quantum dots -: art. no. 195315 [J].

Bayer, M ;

Ortner, G ;

Stern, O ;

Kuther, A ;

Gorbunov, AA ;

Forchel, A ;

Hawrylak, P ;

Fafard, S ;

Hinzer, K ;

Reinecke, TL ;

Walck, SN ;

Reithmaier, JP ;

Klopf, F ;

Schäfer, F .

PHYSICAL REVIEW B, 2002, 65 (19) :1953151-19531523

[8] Hidden symmetries in the energy levels of excitonic 'artificial atoms' [J].

Bayer, M ;

Stern, O ;

Hawrylak, P ;

Fafard, S ;

Forchel, A .

NATURE, 2000, 405 (6789) :923-926

[9] Exploitation of optical interconnects in future server architectures [J].

Benner, AF ;

Ignatowski, M ;

Kash, JA ;

Kuchta, DM ;

Ritter, MB .

IBM JOURNAL OF RESEARCH AND DEVELOPMENT, 2005, 49 (4-5) :755-775

[10] Exciton and biexciton fine structure in single elongated islands grown on a vicinal surface [J].

Besombes, L ;

Kheng, K ;

Martrou, D .

PHYSICAL REVIEW LETTERS, 2000, 85 (02) :425-428

← 1 2 3 4 5 →