期刊
PHYSICAL REVIEW LETTERS
卷 104, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.104.046802
关键词
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资金
- QuEST program [BAA-0824]
- MEXT [21102003]
- [19104007]
- [18340081]
- Grants-in-Aid for Scientific Research [21102003] Funding Source: KAKEN
We use photon-assisted tunneling (PAT) and an inhomogeneous Zeeman field to demonstrate spin-selective PAT readout with a double quantum dot. The inhomogeneous Zeeman field is generated by a proximal micromagnet, which provides different stray fields between the two dots, resulting in an energy difference between the interdot PAT of the up-spin state and that of the down-spin state. We apply various external magnetic fields to modify the relative filling weight between the up-spin and down-spin states and detect it by using a charge detection technique to probe the PAT induced charge delocalization in the double dot.
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