Spin pairing in quantum dots with many electrons

被引：0
|
作者：
Lüscher, S [1 ]
Heinzel, T [1 ]
Ensslin, K [1 ]
Wegscheider, W [1 ]
Bichler, M [1 ]
机构：
[1] ETH Zurich, Solid State Phys Lab, CH-8093 Zurich, Switzerland
来源：
PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II | 2001年 / 87卷
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Quantum dots with reduced electron-electron interactions are fabricated by means of lithoraphy with an atomic force microscope (AFM), Transport measurements in the Coulomb blockade regime reveal a pairwise correlation of both the position and the amplitude of the Coulomb blockade resonances, which is interpreted as spin pairing. Due to exchange interaction effects, the spin degeneracy is removed, which modifies the distribution of the nearest-neighbor peak spacings, but leaves the amplitude distribution unchanged.
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页码：1059 / 1060
页数：2
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