Investigation of spin state in a quantum dot by using strongly asymmetric tunnel barriers

T. Hayashi, T. Fujisawa, Y. Hirayama

研究成果: Article査読

5 被引用数 (Scopus)

抄録

We investigate the spin state of a GaAs lateral quantum dot (QD) by using strongly asymmetric tunnel barriers. The saturated current depends on the current polarity, which switches the direction of the dominant tunneling transition that increases or decreases the total spin. With this technique, the spin polarization and the Coulomb interaction are investigated. We find that high spin states appearing in some magnetic field regions can be understood by considering simple Coulomb interactions.

本文言語English
ページ(範囲)262-265
ページ数4
ジャーナルPhysica Status Solidi (B) Basic Research
238
2
DOI
出版ステータスPublished - 2003 7 1
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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