Ion channeling study of the lattice disorder in neutron irradiated GaP
Kuriyama, K. ; Miyamoto, Y. ; Koyama, T. ; Ogawa, O.
[S.l.] : American Institute of Physics (AIP)
Published 1999
[S.l.] : American Institute of Physics (AIP)
Published 1999
| ISSN: |
1089-7550
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|---|---|
| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
The lattice disorder in GaP produced by fast neutrons with a fluence of 2.1×1018 cm−2 has been investigated with 1.5 MeV 4He+ channeling. The slight increase in the 〈111〉 aligned yield for irradiated crystals indicates that each primary knock-on (PKO) produces approximately 7×102 displaced atoms. Channeling studies also show a spread distribution of randomly located defects imbedded in the lattice structure. On the other hand, P antisite (PGa) defects produced by neutron irradiation are ∼2 per PKO. Irradiated samples also show a volume expansion of 0.13%. It is suggested that the lattice expansion mainly induced by vacancy–interstitial clusters arises from the displacement atoms rather than PGa defects. © 1999 American Institute of Physics.
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| Type of Medium: |
Electronic Resource
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| URL: |