2014年7月
Magnetic Flux Effect on a Kondo-Induced Electric Polarization in a Triangular Triple Quantum Dot
Journal of the Physical Socieity of Japan
- ,
- ,
- ,
- ,
- 巻
- 83
- 号
- 8
- 開始ページ
- 084707
- 終了ページ
- (5 pages)
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.7566/JPSJ.83.084707
- 出版者・発行元
- The Physical Society of Japan
A magnetic flux effect is studied theoretically on an electric polarization induced by the Kondo effect in a triangular triple-quantum-dot system, where one of the three dots is connected to a metallic lead. This electric polarization exhibits an Aharonov–Bohm oscillation as a function of the magnetic flux penetrating through the triangular loop. The numerical renormalization group analysis reveals how the oscillation pattern depends on the Kondo coupling of a local spin with lead electrons, which is sensitive to the point contact with the lead. It provides an experimental implication that the Kondo effect is the origin of the emergent electric polarization.
- リンク情報
- ID情報
-
- DOI : 10.7566/JPSJ.83.084707
- ISSN : 0031-9015
- CiNii Articles ID : 40020158082
- CiNii Books ID : AA00704814