Field Tuning the g Factor in InAs Nanowire Double Quantum Dots

被引：136
作者：
Schroer, M. D. [1 ]
Petersson, K. D. [1 ]
Jung, M. [1 ]
Petta, J. R. [1 ]
机构：
[1] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 17期
基金：
美国国家科学基金会;
关键词：
SINGLE-ELECTRON SPIN; G-TENSOR; MANIPULATION; GIANT;
D O I：
10.1103/PhysRevLett.107.176811
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the effects of magnetic and electric fields on the g factors of spins confined in a two-electron InAs nanowire double quantum dot. Spin sensitive measurements are performed by monitoring the leakage current in the Pauli blockade regime. Rotations of single spins are driven using electric-dipole spin resonance. The g factors are extracted from the spin resonance condition as a function of the magnetic field direction, allowing determination of the full g tensor. Electric and magnetic field tuning can be used to maximize the g-factor difference and in some cases altogether quench the electric-dipole spin resonance response, allowing selective single spin control.
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页数：5
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