Phase Relaxation and Non-Equilibrium Transport Properties through Multilevel Quantum Dot

Yasuhiro Funabashi, Kazuhiko Ohtsubo, Mikio Eto, Kiyoshi Kawamura

研究成果: Conference article査読

7 被引用数 (Scopus)

抄録

Phase relaxation of conduction electrons in transport through a multilevel quantum dot in the Coulomb blockade region is studied using the Anderson Hamiltonian. Two types of currents are calculated separately, i.e., in the absence and presence of the phase relaxation. At low temperatures, the current without the phase relaxation is considerably suppressed for an appropriate value of the Coulomb interaction between electrons in the dot. This is due to the interference between two virtual processes in the transport of a electron. At high temperatures, the two types of currents are almost identical as a consequence of the thermal excitations.

本文言語English
ページ(範囲)388-391
ページ数4
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
38
1 B
DOI
出版ステータスPublished - 1999 1 1
イベントProceedings of the 1998 International Symposium on Formation, Physics and Device Application of Quantum Dot Structures, QDS-98 - Sapporo, Japan
継続期間: 1998 5 311998 6 4

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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