Selective spin-resolved edge-current injection into a quantum antidot

被引：11
|
作者：
Kataoka, M [1 ]
Ford, CJB [1 ]
Simmons, MY [1 ]
Ritchie, DA [1 ]
机构：
[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
来源：
PHYSICAL REVIEW B | 2003年 / 68卷 / 15期
关键词：
D O I：
10.1103/PhysRevB.68.153305
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Quantum-Hall edge states have an extremely long equilibration length. We have utilized this property to inject a spin-polarized tunneling current into a quantum antidot. This allows the determination of the transmission of each spin channel, which is not possible in conventional conductance measurements. It was found that only one spin contributes to the resonance in the double-frequency regime in accordance with our proposed model with compressible rings. This technique is applicable as a spin-injection method in nanodevices.
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页数：4
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