Vacancy formation energy of metals determined by using positron age-momentum correlation technique

Naoki Suzuki; Yasuyoshi Nagai; Yoshiko Itoh; Akira Goto; Toshio Hyodo

doi:10.4028/www.scientific.net/msf.363-365.185

Vacancy formation energy of metals determined by using positron age-momentum correlation technique

Naoki Suzuki, Yasuyoshi Nagai, Yoshiko Itoh, Akira Goto, Toshio Hyodo

IMR - Materials Design Division

Research output: Contribution to journal › Conference article › peer-review

Abstract

The vacancy formation energy E_v of Zn and In are determined by using the positron age-momentum correlation (AMOC) technique. The S-parameter S_v for the trapped positrons that is necessary for the analysis is obtained by extrapolating the time dependent S-parameter S(t). Thus it is not necessary to heat up the sample so high that all positrons are trapped in vacancies. The E_v of Zn thus obtained was in good agreement with the reported value. Also we obtained the E_v of In, for which the previously reported values are scattered over a considerable range.

Original language	English
Pages (from-to)	185-188
Number of pages	4
Journal	Materials Science Forum
Volume	363-365
DOIs	https://doi.org/10.4028/www.scientific.net/msf.363-365.185
Publication status	Published - 2001
Event	12th International Conference on Positron Annihilation - Munchen, Germany Duration: 2000 Aug 6 → 2000 Aug 12

Keywords

AMOC
Energy
In
Positron trapping
Time-dependent S-parameter
Vacancy formation
Zn

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title = "Vacancy formation energy of metals determined by using positron age-momentum correlation technique",

abstract = "The vacancy formation energy Ev of Zn and In are determined by using the positron age-momentum correlation (AMOC) technique. The S-parameter Sv for the trapped positrons that is necessary for the analysis is obtained by extrapolating the time dependent S-parameter S(t). Thus it is not necessary to heat up the sample so high that all positrons are trapped in vacancies. The Ev of Zn thus obtained was in good agreement with the reported value. Also we obtained the Ev of In, for which the previously reported values are scattered over a considerable range.",

keywords = "AMOC, Energy, In, Positron trapping, Time-dependent S-parameter, Vacancy formation, Zn",

author = "Naoki Suzuki and Yasuyoshi Nagai and Yoshiko Itoh and Akira Goto and Toshio Hyodo",

year = "2001",

doi = "10.4028/www.scientific.net/msf.363-365.185",

language = "English",

volume = "363-365",

pages = "185--188",

journal = "Materials Science Forum",

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note = "12th International Conference on Positron Annihilation ; Conference date: 06-08-2000 Through 12-08-2000",

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TY - JOUR

T1 - Vacancy formation energy of metals determined by using positron age-momentum correlation technique

AU - Suzuki, Naoki

AU - Nagai, Yasuyoshi

AU - Itoh, Yoshiko

AU - Goto, Akira

AU - Hyodo, Toshio

PY - 2001

Y1 - 2001

N2 - The vacancy formation energy Ev of Zn and In are determined by using the positron age-momentum correlation (AMOC) technique. The S-parameter Sv for the trapped positrons that is necessary for the analysis is obtained by extrapolating the time dependent S-parameter S(t). Thus it is not necessary to heat up the sample so high that all positrons are trapped in vacancies. The Ev of Zn thus obtained was in good agreement with the reported value. Also we obtained the Ev of In, for which the previously reported values are scattered over a considerable range.

AB - The vacancy formation energy Ev of Zn and In are determined by using the positron age-momentum correlation (AMOC) technique. The S-parameter Sv for the trapped positrons that is necessary for the analysis is obtained by extrapolating the time dependent S-parameter S(t). Thus it is not necessary to heat up the sample so high that all positrons are trapped in vacancies. The Ev of Zn thus obtained was in good agreement with the reported value. Also we obtained the Ev of In, for which the previously reported values are scattered over a considerable range.

KW - AMOC

KW - Energy

KW - In

KW - Positron trapping

KW - Time-dependent S-parameter

KW - Vacancy formation

KW - Zn

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U2 - 10.4028/www.scientific.net/msf.363-365.185

DO - 10.4028/www.scientific.net/msf.363-365.185

M3 - Conference article

AN - SCOPUS:0035000271

SN - 0255-5476

VL - 363-365

SP - 185

EP - 188

JO - Materials Science Forum

JF - Materials Science Forum

T2 - 12th International Conference on Positron Annihilation

Y2 - 6 August 2000 through 12 August 2000

ER -

Vacancy formation energy of metals determined by using positron age-momentum correlation technique

Abstract

Keywords

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