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Journal Articles

Effect of magnetic field on positron lifetimes of Fe, Co and Ni

Li, H.; Maekawa, Masaki; Kawasuso, Atsuo; Tanimura, Naoki*

Journal of Physics; Condensed Matter, 27(24), p.246001_1 - 246001_5, 2015/06

 Times Cited Count:6 Percentile:64.62(Physics, Condensed Matter)

Journal Articles

Positron lifetime measurement on centrifuged Bi$$_{3}$$Pb$$_{7}$$ intermetallic compound

Ono, Masao; Huang, X. S.*; Shibata, Yasuhiro*; Iguchi, Yusuke*; Sakai, Seiji; Maekawa, Masaki; Chen, Z. Q.*; Osakabe, Toyotaka; Kawasuso, Atsuo; Naramoto, Hiroshi*; et al.

Proceedings of 1st International Conference on Diffusion in Solids and Liquids (DSL 2005), p.531 - 533, 2005/07

Recently, we formed atomic-scale graded structures in some miscible alloys and observed the decomposition in Bi$$_{3}$$Pb$$_{7}$$ intermetallic compound by sedimentation of atoms under strong gravitational field. In this study, we measured positron lifetime of centrifuged Bi$$_{3}$$Pb$$_{7}$$, to which the composition change was very small as it was treated at low temperature. It was found that the positron lifetime became longer than that of starting state. This indicated that the point defects (vacancy or divacancy) increased in the sample by centrifugal treatment. We are now investigating the relationship between increase in point defects and sedimentation of atoms.

Journal Articles

A Positron lifetime study of defects in neutron-irradiated Si

A.Li*; H.Huang*; D.Li*; S.Zheng*; H.Du*; S.Zhu*; Iwata, Tadao

Japanese Journal of Applied Physics, 32(3), p.1033 - 1038, 1993/03

 Times Cited Count:8 Percentile:54.48(Physics, Applied)

no abstracts in English

Journal Articles

Positron annihilation study on neutron irradiated Si

S.Zhu*; A.Li*; S.Zheng*; H.Huang*; D.Li*; Iwata, Tadao

Chin. J. Nucl. Phys., 14(2), p.166 - 168, 1992/00

no abstracts in English

Journal Articles

Characterization of graphites by positron lifetimes

; *; *; *

Japanese Journal of Applied Physics, 20(10), p.1799 - 1806, 1981/00

 Times Cited Count:18 Percentile:33.92(Physics, Applied)

no abstracts in English

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