Positron 2D-ACAR in perfect crystals of diamond, Si and Ge: First-principles calculations and experiments

Z. Tang; M. Hasegawa; T. Chiba; M. Saito; H. Sumiya; Z. Q. Li; T. Akahane; Y. Kawazoe; S. Yamaguchi

doi:10.4028/www.scientific.net/msf.255-257.411

Positron 2D-ACAR in perfect crystals of diamond, Si and Ge: First-principles calculations and experiments

Z. Tang, M. Hasegawa, T. Chiba, M. Saito, H. Sumiya, Z. Q. Li, T. Akahane, Y. Kawazoe, S. Yamaguchi

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Positron annihilation characteristics in perfect crystals of diamond, Si and Ge are studied theoretically and experimentally. A first-principles calculation based on the two-component density functional theory is presented. Calculations are found to be in good agreement with our measurements. An interesting difference among experimental two-dimensional angular correlation of annihilation radiation (2D-ACAR) for diamond, Si and Ge is clarified by band by band decomposition for the calculated three-dimensional momentum distributions.

Original language	English
Pages (from-to)	411-413
Number of pages	3
Journal	Materials Science Forum
Volume	255-257
DOIs	https://doi.org/10.4028/www.scientific.net/msf.255-257.411
Publication status	Published - 1997

Keywords

2D-ACAR
Electronic Structure
First-Principles Calculation
Semiconductor

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.4028/www.scientific.net/msf.255-257.411

Cite this

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abstract = "Positron annihilation characteristics in perfect crystals of diamond, Si and Ge are studied theoretically and experimentally. A first-principles calculation based on the two-component density functional theory is presented. Calculations are found to be in good agreement with our measurements. An interesting difference among experimental two-dimensional angular correlation of annihilation radiation (2D-ACAR) for diamond, Si and Ge is clarified by band by band decomposition for the calculated three-dimensional momentum distributions.",

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T2 - First-principles calculations and experiments

AU - Tang, Z.

AU - Hasegawa, M.

AU - Chiba, T.

AU - Saito, M.

AU - Sumiya, H.

AU - Li, Z. Q.

AU - Akahane, T.

AU - Kawazoe, Y.

AU - Yamaguchi, S.

PY - 1997

Y1 - 1997

N2 - Positron annihilation characteristics in perfect crystals of diamond, Si and Ge are studied theoretically and experimentally. A first-principles calculation based on the two-component density functional theory is presented. Calculations are found to be in good agreement with our measurements. An interesting difference among experimental two-dimensional angular correlation of annihilation radiation (2D-ACAR) for diamond, Si and Ge is clarified by band by band decomposition for the calculated three-dimensional momentum distributions.

AB - Positron annihilation characteristics in perfect crystals of diamond, Si and Ge are studied theoretically and experimentally. A first-principles calculation based on the two-component density functional theory is presented. Calculations are found to be in good agreement with our measurements. An interesting difference among experimental two-dimensional angular correlation of annihilation radiation (2D-ACAR) for diamond, Si and Ge is clarified by band by band decomposition for the calculated three-dimensional momentum distributions.

KW - 2D-ACAR

KW - Electronic Structure

KW - First-Principles Calculation

KW - Semiconductor

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JO - Materials Science Forum

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Positron 2D-ACAR in perfect crystals of diamond, Si and Ge: First-principles calculations and experiments

Abstract

Keywords

ASJC Scopus subject areas

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