Evolution of spin of a quantum dot embedded in a superconducting ring

被引：0
|
作者：
Feng, J. F. [1 ,2 ,3 ,4 ]
Ren, S. L. [3 ,4 ]
Jiao, C. H. [3 ,4 ]
Qian, B. [3 ,4 ]
Hu, A. [3 ,4 ]
Wui, X. S. [1 ,2 ,3 ,4 ]
机构：
[1] Changshu Inst Technol, Jiangsu Lab Adv Funct Mat, Changshu 215500, Peoples R China
[2] Changshu Inst Technol, Dept Phys, Changshu 215500, Peoples R China
[3] Nanjing Univ, Solid State Microstruct Lab, Nanjing 210093, Peoples R China
[4] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2007年 / 21卷 / 18-19期
关键词：
superconducting; QD; ring;
D O I：
10.1142/S0217979207044068
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We study the spin oscillations of a quantum dot (QD) embedded in a superconducting ring. The dot is characterized by the Coulomb interaction and the gate voltage. The pairing potential is considered in the superconducting ring. We found that the amplitude and frequency of the oscillations depend sensitively on the pairing potential of superconducting lead, the coupling strength between the dot and superconducting lead. We also show that the magnetic moment on the dot can be controlled by changing the pairing potential of superconducting lead.
引用
收藏
页码：3151 / 3155
页数：5
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