Disentangling the effects of spin-orbit and hyperfine interactions on spin blockade

被引：100

作者：

Nadj-Perge, S. ^{[1
]}

Frolov, S. M. ^{[1
]}

van Tilburg, J. W. W. ^{[1
]}

Danon, J. ^{[1
,2
]}

Nazarov, Yu. V. ^{[1
]}

Algra, R. ^{[3
]}

Bakkers, E. P. A. M. ^{[1
,3
]}

Kouwenhoven, L. P. ^{[1
]}

机构：

[1] Delft Univ Technol, Kavli Inst Nanosci, NL-2600 GA Delft, Netherlands

[2] Free Univ Berlin, Dahlem Ctr Complex Quantum Syst, D-14195 Berlin, Germany

[3] Philips Res Labs Eindhoven, NL-5656 AE Eindhoven, Netherlands

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 20期

关键词：

SINGLE-ELECTRON SPIN; DOUBLE-QUANTUM DOT;

D O I：

10.1103/PhysRevB.81.201305

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have achieved the few-electron regime in InAs nanowire double quantum dots. Spin blockade is observed for the first two half-filled orbitals, where the transport cycle is interrupted by forbidden transitions between triplet and singlet states. Partial lifting of spin blockade is explained by spin-orbit and hyperfine mechanisms that enable triplet to singlet transitions. The measurements over a wide range of interdot coupling and tunneling rates to the leads are well reproduced by a simple transport model. This allows us to separate and quantify the contributions of the spin-orbit and hyperfine interactions.

引用

页数：4

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