Magnetic-field-induced electron transitions in concentric double quantum rings

被引：3

作者：

Maria Escartin, Jose ^{[1
]}

Malet, Francesc ^{[2
]}

Pi, Marti ^{[1
]}

Barranco, Manuel ^{[1
]}

机构：

[1] Univ Barcelona, Fac Fis, Dept ECM, Diagonal 647, E-08028 Barcelona, Spain

[2] Lund Univ, LTH, Math Phys, S-22100 Lund, Sweden

来源：

PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 7, NO 11-12 | 2010年 / 7卷 / 11-12期

关键词：

double quantum rings; density functional theory; electronic structure; magnetic field influence; ENERGY-SPECTRA; DOTS; SPECTROSCOPY; SPIN;

D O I：

10.1002/pssc.200983802

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Within local spin-density functional theory, we show that changes in the intensity of a magnetic field perpendicularly applied to a few-electron concentric double quantum ring may alter the electron distribution in the constituent rings producing an observable effect on the infrared spectrum of the system. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：2608 / 2611

页数：4

共 20 条

[1] Quantum dots to double concentric quantum ring structures transition [J].

Bietti, S. ;

Somaschini, C. ;

Abbarchi, M. ;

Koguchi, N. ;

Sanguinetti, S. ;

Poliani, E. ;

Bonfanti, M. ;

Gurioli, M. ;

Vinattieri, A. ;

Kuroda, T. ;

Mano, T. ;

Sakoda, S. .

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 4, 2009, 6 (04) :928-+

[2] Electronic structure of few-electron concentric double quantum rings [J].

Climente, J. I. ;

Planelles, J. ;

Barranco, M. ;

Malet, F. ;

Pi, M. .

PHYSICAL REVIEW B, 2006, 73 (23)

[3] Quantum Monte Carlo study of few-electron concentric double quantum rings [J].

Colletti, Leonardo ;

Malet, Francesc ;

Pi, Marti ;

Pederiva, Francesco .

PHYSICAL REVIEW B, 2009, 79 (12)

[4] Far-infrared spectroscopy of nanoscopic InAs rings [J].

Emperador, A ;

Pi, M ;

Barranco, M ;

Lorke, A .

PHYSICAL REVIEW B, 2000, 62 (07) :4573-4577

[5] Energy spectra of quantum rings [J].

Fuhrer, A ;

Lüescher, S ;

Ihn, T ;

Heinzel, T ;

Ensslin, K ;

Wegscheider, W ;

Bichler, M .

NATURE, 2001, 413 (6858) :822-825

[6] Electronic properties of coupled quantum rings in the presence of a magnetic field [J].

Fuster, G ;

Pacheco, M ;

Barticevic, Z .

BRAZILIAN JOURNAL OF PHYSICS, 2004, 34 (2B) :666-668

[7] Kondo effect in a few-electron quantum ring -: art. no. 196601 [J].

Keyser, UF ;

Fühner, C ;

Borck, S ;

Haug, RJ ;

Bichler, M ;

Abstreiter, G ;

Wegscheider, W .

PHYSICAL REVIEW LETTERS, 2003, 90 (19) :4

[8] Hund's rules and spin density waves in quantum dots [J].

Koskinen, M ;

Manninen, M ;

Reimann, SM .

PHYSICAL REVIEW LETTERS, 1997, 79 (07) :1389-1392

[9] Optical transitions in quantum ring complexes [J].

Kuroda, T ;

Mano, T ;

Ochiai, T ;

Sanguinetti, S ;

Sakoda, K ;

Kido, G ;

Koguchi, N .

PHYSICAL REVIEW B, 2005, 72 (20)

[10] Spectroscopy of nanoscopic semiconductor rings [J].

Lorke, A ;

Luyken, RJ ;

Govorov, AO ;

Kotthaus, JP ;

Garcia, JM ;

Petroff, PM .

PHYSICAL REVIEW LETTERS, 2000, 84 (10) :2223-2226

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