Zero-bias anomaly in cotunneling transport through quantum-dot spin valves -: art. no. 113301

被引：61

作者：

Weymann, I ^{[1
]}

Barnas, J

König, J

Martinek, J

Schön, G

机构：

[1] Adam Mickiewicz Univ, Dept Phys, PL-61614 Poznan, Poland

[2] Polish Acad Sci, Inst Mol Phys, PL-60179 Poznan, Poland

[3] Ruhr Univ Bochum, Inst Theoret Phys 3, D-44780 Bochum, Germany

[4] Univ Karlsruhe, Inst Theoret Festkorperphys, D-76128 Karlsruhe, Germany

[5] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.72.113301

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We predict a zero-bias anomaly in the differential conductance through a quantum dot coupled to two ferromagnetic leads with antiparallel magnetization. The anomaly differs in origin and properties from other anomalies in transport through quantum dots, such as the Kondo effect. It occurs in Coulomb-blockade valleys with an unpaired dot electron. It is a consequence of the interplay of single- and double-barrier cotunneling processes and their effect on the spin accumulation in the dot. The anomaly becomes significantly modified when a magnetic field is applied.

引用

页数：4

共 50 条

[41] Coulomb effects in tunneling through a quantum dot stack -: art. no. 125328
Sprekeler, H
Kiesslich, G
Wacker, A
Schöll, E
PHYSICAL REVIEW B, 2004, 69 (12)
[42] Spin injection into a single self-assembled quantum dot -: art. no. 035311
Seufert, J
Bacher, G
Schömig, H
Forchel, A
Hansen, L
Schmidt, G
Molenkamp, LW
PHYSICAL REVIEW B, 2004, 69 (03)
[43] Coulomb and spin blockade of two few-electron quantum dots in series in the cotunneling regime -: art. no. 235306
Ciorga, M
Pioro-Ladrière, M
Zawadzki, P
Lapointe, J
Wasilewski, Z
Sachrajda, AS
PHYSICAL REVIEW B, 2004, 70 (23): : 1 - 5
[44] Relation between width of zero-bias anomaly and Kondo temperature in transport measurements through correlated quantum dots: Effect of asymmetric coupling to the leads
Perez Daroca, D.
Roura-Bas, P.
Aligia, A. A.
PHYSICAL REVIEW B, 2018, 98 (24)
[45] Geometric blockade in a quantum dot:: Transport properties by exact diagonalization -: art. no. 195327
Güçlü, AD
Sun, QF
Guo, H
Harris, R
PHYSICAL REVIEW B, 2002, 66 (19): : 1 - 9
[46] Monolithically integrated twin ring diode lasers with quantum-dot active region - art. no. 611521
Cao, Hongjun
Gray, Allen L.
Lester, Luke F.
Osinski, Marek
Physics and SImulation of Optoelectronic Devices XIV, 2006, 6115 : 11521 - 11521
[47] Spin-dependent transport through quantum-dot Aharonov-Bohm interferometers
Hiltscher, Bastian
Governale, Michele
Koenig, Juergen
PHYSICAL REVIEW B, 2010, 82 (16)
[48] High-speed 1.3 μm tunnel injection quantum-dot lasers -: art. no. 153109
Mi, Z
Bhattacharya, P
Fathpour, S
APPLIED PHYSICS LETTERS, 2005, 86 (15) : 1 - 3
[49] Carrier transport and recombination in p-doped and intrinsic 1.3 μm InAs/GaAs quantum-dot lasers -: art. no. 211114
Marko, IP
Massé, NF
Sweeney, SJ
Andreev, AD
Adams, AR
Hatori, N
Sugawara, M
APPLIED PHYSICS LETTERS, 2005, 87 (21) : 1 - 3
[50] Fano resonances and Aharonov-Bohm effects in transport through a square quantum dot molecule -: art. no. 085308
Zeng, ZY
Claro, F
Pérez, A
PHYSICAL REVIEW B, 2002, 65 (08) : 1 - 7

← 1 2 3 4 5 →