TY - JOUR
T1 - Jahn-Teller distortion of neutral divacancy in Si studied by positron annihilation spectroscopy
AU - Nagai, Y.
AU - Inoue, K.
AU - Tang, Z.
AU - Yonenaga, I.
AU - Chiba, T.
AU - Saito, M.
AU - Hasegawa, M.
N1 - Funding Information:
The authors express thanks to Professor E. Kuramoto and Mr. M. Takenaka of Kyushu University for the electron irradiation experiments at KUR LINAC facility supported by the Inter-University Program by Research Reactor Institute, Kyoto University. This work is partly supported by Radioactive Waste Management Funding and Research Center, and Grant-in-Aid for Scientific Research of the Ministry of Education, Science and Culture (No. 12358005, 12640334, and 13305044).
PY - 2003/12/31
Y1 - 2003/12/31
N2 - 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-).
AB - 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-).
KW - 2D-ACAR
KW - Divacancy in Si
KW - Jahn-Teller distortion
KW - Positron annihilation
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U2 - 10.1016/j.physb.2003.09.144
DO - 10.1016/j.physb.2003.09.144
M3 - Conference article
AN - SCOPUS:0347764773
SN - 0921-4526
VL - 340-342
SP - 518
EP - 522
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
T2 - Proceedings of the 22nd International Conference on Defects in (ICDS-22)
Y2 - 28 July 2003 through 1 August 2003
ER -