Antiferromagnetic coupling between semiconductor quantum dots

A. Tackeuchi, T. Kuroda, R. Sasou, Y. Nakata, N. Yokoyama

研究成果: Article査読

12 被引用数 (Scopus)

抄録

We have investigated magnetic coupling between semiconductor quantum dots. The antiferromagnetization process based on the interdot exchange interaction has been directly observed using time-resolved spin-dependent photoluminescence measurements. The antiferromagnetic order that proves the interdot exchange interaction energy to be negative is found to exist at temperatures lower than 50-80 K. The spin relaxation time under the antiferromagnetic order is extended to 10-12 ns, an order of magnitude longer than that in isolated quantum dots.

本文言語English
ページ(範囲)25-29
ページ数5
ジャーナルPhysica B: Condensed Matter
314
1-4
DOI
出版ステータスPublished - 2002 3

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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