Jahn-Teller distortion of neutral divacancy in Si studied by positron annihilation spectroscopy

Y. Nagai, K. Inoue, Z. Tang, I. Yonenaga, T. Chiba, M. Saito, M. Hasegawa

研究成果: Conference article査読

7 被引用数 (Scopus)

抄録

Jahn-Teller (JT) distortion of the diamagnetic neutral divacancy (V 20) in Si is studied by positron annihilation spectroscopy. Based on the anisotropy of electron momentum distribution around the divacancies obtained by two-dimensional angular correlation of positron annihilation radiation (2D-ACAR) technique, the preferred alignment of the divacancy in a specimen by compressing uniaxial stress along the [0 1 1] axis is detected. The direction of the alignment evidences the pairing JT distortion rather than the resonant bonding distortion, which is similar to the distortion in the singly negative divacancy (V2-).

本文言語English
ページ(範囲)518-522
ページ数5
ジャーナルPhysica B: Condensed Matter
340-342
DOI
出版ステータスPublished - 2003 12 31
イベントProceedings of the 22nd International Conference on Defects in (ICDS-22) - Aarhus, Denmark
継続期間: 2003 7 282003 8 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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