Single Electron's Dynamical Behavior in a Two Dimensional Anisotropic Quantum Dot with Account of Rashba Effect

被引：0

作者：

Sisakhti, Masoumeh ^{[1
,2
]}

Golshan, Mohammad Mehdi ^{[1
]}

Sanaee, Maryam ^{[2
,3
]}

机构：

[1] Shiraz Univ, Dept Phys, Coll Sci, Shiraz 7134851154, Iran

[2] Shiraz Univ, Nanotechnol Res Inst, Shiraz 7134851154, Iran

[3] Shiraz Univ, Sch Elect & Comp Engn, Shiraz 7193616511, Iran

来源：

JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE | 2011年 / 8卷 / 10期

关键词：

Rashba Spin Orbit Interaction; Anisotropic Quantum Dot;

D O I：

10.1166/jctn.2011.1939

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We investigate a two dimensional anisotropic quantum dot with Rashba spin-orbit interaction in presence of a magnetic field perpendicular to the plane of the dot. The dynamical properties of the spin states and subbands populations of a single electron have been studied. In order to obtain the expectation values of the spin states and structural subbands as functions of time, the time evolution operator in the Fock-Darwin representation, has been calculated. According to the results, the mean value of spin is observed to wobble along the magnetic field on an ellipse. Moreover, the phenomena of the collapse-revivals are found to occur for the subband averages and the spin along the magnetic field.

引用

页码：2166 / 2171

页数：6

共 23 条

[1]

BYCHKOV YA, 1984, JETP LETT+, V39, P78

[2] Spin-orbit-driven coherent oscillations in a few-electron quantum dot [J].

Debald, S ;

Emary, C .

PHYSICAL REVIEW LETTERS, 2005, 94 (22)

[3]

Debald S., 2005, THESIS U HAMBURG IRA

[4] Rashba spin-orbit interaction and shot noise for spin-polarized and entangled electrons [J].

Egues, JC ;

Burkard, G ;

Loss, D .

PHYSICAL REVIEW LETTERS, 2002, 89 (17) :176401/1-176401/4

[5] Experimental and theoretical approach to spin splitting in modulation-doped InxGa1-xAs/InP quantum wells for B->0 [J].

Engels, G ;

Lange, J ;

Schäpers, T ;

Lüth, H .

PHYSICAL REVIEW B, 1997, 55 (04) :R1958-R1961

[6] Spin interference effects in ring conductors subject to Rashba coupling [J].

Frustaglia, D ;

Richter, K .

PHYSICAL REVIEW B, 2004, 69 (23) :235310-1

[7] Large Rashba splitting in InAs quantum wells due to electron wave function penetration into the barrier layers [J].

Grundler, D .

PHYSICAL REVIEW LETTERS, 2000, 84 (26) :6074-6077

[8] Semiconductor quantum dots for application in diode lasers [J].

Grundmann, M ;

Ledentsov, NN ;

Kirstaedter, N ;

Heinrichsdorff, F ;

Krost, A ;

Bimberg, D ;

Kosogov, AO ;

Ruvimov, SS ;

Werner, P ;

Ustinov, VM ;

Kop'ev, PS ;

Alferov, ZI .

THIN SOLID FILMS, 1998, 318 (1-2) :83-87

[9] Single-shot readout of electron spin states in a quantum dot using spin-dependent tunnel rates [J].

Hanson, R ;

van Beveren, LHW ;

Vink, IT ;

Elzerman, JM ;

Naber, WJM ;

Koppens, FHL ;

Kouwenhoven, LP ;

Vandersypen, LMK .

PHYSICAL REVIEW LETTERS, 2005, 94 (19)

[10] Rashba spin-orbit coupling probed by the weak antilocalization analysis in InAlAs/InGaAs/InAlAs quantum wells as a function of quantum well asymmetry [J].

Koga, T ;

Nitta, J ;

Akazaki, T ;

Takayanagi, H .

PHYSICAL REVIEW LETTERS, 2002, 89 (04) :1-046801

← 1 2 3 →