Abstract
A formula for numerical estimation of the threshold energy Ed of atomic displacement from lattice sites upon the irradiation of solids is proposed for the first time. The Ed structure is determined by analyzing processes accompanying the subthreshold motion of a lattice atom ejected from a site (when the energy W acquired by the atom does not exceed Ed). The relation between Ed and the physical properties of solids and the parameters of their crystal lattice is shown. It is established that the partial contribution of the binding energy to Ed does not exceed 30%, and the dissipative energy losses (intracrystalline friction) during such atomic motion is about 10%. The main part of Ed is determined by the work of the forces of electrostatic (in the case of semiconductors and insulators) and elastic (for metals) interaction between vacancies and interstitial atoms.
| Original language | English |
|---|---|
| Pages (from-to) | 1206-1212 |
| Number of pages | 7 |
| Journal | Journal of Surface Investigation |
| Volume | 9 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Nov 2015 |
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Keywords
- intracrystalline friction
- radiation defect
- radiation resistance of materials
- stable and unstable vacancy–interstitial-atom pair
- threshold displacement energy
ASJC Scopus subject areas
- Surfaces, Coatings and Films
Cite this
On the physical nature of the threshold displacement energy in radiation physics. / Uglov, V. V.; Kvasov, N. T.; Remnev, G. E.; Polikarpov, R. V.
In: Journal of Surface Investigation, Vol. 9, No. 6, 01.11.2015, p. 1206-1212.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - On the physical nature of the threshold displacement energy in radiation physics
AU - Uglov, V. V.
AU - Kvasov, N. T.
AU - Remnev, G. E.
AU - Polikarpov, R. V.
PY - 2015/11/1
Y1 - 2015/11/1
N2 - A formula for numerical estimation of the threshold energy Ed of atomic displacement from lattice sites upon the irradiation of solids is proposed for the first time. The Ed structure is determined by analyzing processes accompanying the subthreshold motion of a lattice atom ejected from a site (when the energy W acquired by the atom does not exceed Ed). The relation between Ed and the physical properties of solids and the parameters of their crystal lattice is shown. It is established that the partial contribution of the binding energy to Ed does not exceed 30%, and the dissipative energy losses (intracrystalline friction) during such atomic motion is about 10%. The main part of Ed is determined by the work of the forces of electrostatic (in the case of semiconductors and insulators) and elastic (for metals) interaction between vacancies and interstitial atoms.
AB - A formula for numerical estimation of the threshold energy Ed of atomic displacement from lattice sites upon the irradiation of solids is proposed for the first time. The Ed structure is determined by analyzing processes accompanying the subthreshold motion of a lattice atom ejected from a site (when the energy W acquired by the atom does not exceed Ed). The relation between Ed and the physical properties of solids and the parameters of their crystal lattice is shown. It is established that the partial contribution of the binding energy to Ed does not exceed 30%, and the dissipative energy losses (intracrystalline friction) during such atomic motion is about 10%. The main part of Ed is determined by the work of the forces of electrostatic (in the case of semiconductors and insulators) and elastic (for metals) interaction between vacancies and interstitial atoms.
KW - intracrystalline friction
KW - radiation defect
KW - radiation resistance of materials
KW - stable and unstable vacancy–interstitial-atom pair
KW - threshold displacement energy
UR - http://www.scopus.com/inward/record.url?scp=84948950579&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84948950579&partnerID=8YFLogxK
U2 - 10.1134/S102745101506021X
DO - 10.1134/S102745101506021X
M3 - Article
AN - SCOPUS:84948950579
VL - 9
SP - 1206
EP - 1212
JO - Journal of Surface Investigation
JF - Journal of Surface Investigation
SN - 1027-4510
IS - 6
ER -