Report
{\pi} junction transition in InAs self-assembled quantum dot coupled with SQUID
| العنوان: | {\pi} junction transition in InAs self-assembled quantum dot coupled with SQUID |
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| المؤلفون: | Kim, S., Ishiguro, R., Kamio, M., Doda, Y., Watanebe, E., Shibata, K., Hirakawa, K., Takayanagi, H. |
| سنة النشر: | 2010 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | We report the transport measurements on the InAs self-assembled quantum dots (SAQDs) which have a unique structural zero-dimensionality, coupled to a superconducting quantum interference device (SQUID). Owing to the SQUID geometry, we directly observe a {\pi} phase shift in the current phase relation and the negative supercurrent indicating {\pi} junction behavior by not only tuning the energy level of SAQD by back-gate but also controlling the coupling between SAQD and electrodes by side-gate. Our results inspire new future quantum information devices which can link optical, spin, and superconducting state. Comment: 3 pages |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1063/1.3552715 |
| URL الوصول: | http://arxiv.org/abs/1010.5892 |
| رقم الانضمام: | edsarx.1010.5892 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1063/1.3552715 |
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