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.

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页码：275 / 286

页数：12

相关论文

共 41 条

[31] Evidence for excitonic polarons in InAs/GaAs quantum dots [J].

Preisler, V ;

Grange, T ;

Ferreira, R ;

de Vaulchier, LA ;

Guldner, Y ;

Teran, FJ ;

Potemski, M ;

Lemaitre, A .

PHYSICAL REVIEW B, 2006, 73 (07)

[32] Excitonic energy shell structure of self-assembled InGaAs/GaAs quantum dots [J].

Raymond, S ;

Studenikin, S ;

Sachrajda, A ;

Wasilewski, Z ;

Cheng, SJ ;

Sheng, W ;

Hawrylak, P ;

Babinski, A ;

Potemski, M ;

Ortner, G ;

Bayer, M .

PHYSICAL REVIEW LETTERS, 2004, 92 (18) :187402-1

[33] Zeeman effect in parabolic quantum dots [J].

Rinaldi, R ;

Giugno, PV ;

Cingolani, R ;

Lipsanen, H ;

Sopanen, M ;

Tulkki, J ;

Ahopelto, J .

PHYSICAL REVIEW LETTERS, 1996, 77 (02) :342-345

[34] Emission from neutral and charged excitons in a single quantum dot in a magnetic field [J].

Schulhauser, C ;

Warburton, RJ ;

Högele, A ;

Govorov, AO ;

Karrai, K ;

Garcia, JM ;

Gerardot, BD ;

Petroff, PM .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2004, 21 (2-4) :184-188

[35] Electronic structure of InAs/GaAs self-assembled quantum dots studied by high-excitation luminescence in magnetic fields up to 73 T [J].

Smirnov, D ;

Raymond, S ;

Studenikin, S ;

Babinski, A ;

Leotin, J ;

Frings, P ;

Potemski, M ;

Sachrajda, A .

PHYSICA B-CONDENSED MATTER, 2004, 346 :432-436

[36] Shell filling and spin effects in a few electron quantum dot [J].

Tarucha, S ;

Austing, DG ;

Honda, T ;

vanderHage, RJ ;

Kouwenhoven, LP .

PHYSICAL REVIEW LETTERS, 1996, 77 (17) :3613-3616

[37] FINE-STRUCTURE OF EXCITONS IN TYPE-II GAAS/ALAS QUANTUM-WELLS [J].

VANKESTEREN, HW ;

COSMAN, EC ;

VANDERPOEL, WAJA ;

FOXON, CT .

PHYSICAL REVIEW B, 1990, 41 (08) :5283-5292

[38] Optical emission from a charge-tunable quantum ring [J].

Warburton, RJ ;

Schäflein, C ;

Haft, D ;

Bickel, F ;

Lorke, A ;

Karrai, K ;

Garcia, JM ;

Schoenfeld, W ;

Petroff, PM .

NATURE, 2000, 405 (6789) :926-929

[39] Size and shape engineering of vertically stacked self-assembled quantum dots [J].

Wasilewski, ZR ;

Fafard, S ;

McCaffrey, JP .

JOURNAL OF CRYSTAL GROWTH, 1999, 201 :1131-1135

[40] Theory of photoluminescence from modulation-doped self-assembled quantum dots in a magnetic field [J].

Wojs, A ;

Hawrylak, P .

PHYSICAL REVIEW B, 1997, 55 (19) :13066-13071

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