Energy spike generation and quenching processes in ion bombardment induced amorphization of solids

G. Carter, D. G. Armour, S. E. Donnelly, R. Webb

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

A detailed analysis of generation and potential recrystallization of amorphous zones resulting from ion irradiation of solid materials is given. The criterion for generation of such spikes is considered to be that sufficient energy is deposited locally to induce melting. Subsequently the heated zone is considered to cool via unperturbed thermal diffusion from an initial temperature distribution of Gaussian form, although the expected ellipsoidal geometry is idealized to spherical symmetry for analytical convenience. Recrystallization is considered to occur via a thermally activated process during spike quenching and criteria for crystallization at both zone boundaries and centers are deduced. These criteria are shown to correspond well to earlier analyses, but other parameters such as substrate temperature and energy deposition density are found to be of considerable importance. Suggestions for more accurate modeling are also examined.

LanguageEnglish
Pages1-13
Number of pages13
JournalRadiation Effects
Volume36
Issue number1-2
DOIs
Publication statusPublished - 1 Jan 1978
Externally publishedYes

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Thermal diffusion
Amorphization
Ion bombardment
Crystallization
spikes
bombardment
Quenching
Melting
Temperature distribution
quenching
Geometry
Substrates
ions
thermal diffusion
ion irradiation
Temperature
suggestion
energy
temperature distribution
melting

Cite this

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Energy spike generation and quenching processes in ion bombardment induced amorphization of solids. / Carter, G.; Armour, D. G.; Donnelly, S. E.; Webb, R.

In: Radiation Effects, Vol. 36, No. 1-2, 01.01.1978, p. 1-13.

Research output: Contribution to journalArticle

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