Evolution of subsurface nanocavities in copper under argon bombardment and annealing

D.V. Kulikov, O. Kurnosikov, V.S. Kharlamov, Yu.V. Trushin

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

2 Citaties (Scopus)

Uittreksel

The experimental and theoretical studies of evolution of nanocavities in argon-irradiated copper under annealing are presented. The subsurface argon-filled nanocavities are formed during a short annealing at a temperature around 1000 K by migration and interaction of complexes of the simplest defects created by argon irradiation at room temperature. A long-time annealing at a temperature above 1075 K leads to decomposition of nanocavities and desorption of argon from the sample. Using the X-ray photoelectron spectroscopy and scanning tunneling microscopy and spectroscopy, valuable data sets including the density of nanocavities and their size and depth distribution are obtained. A theoretical model describing the nucleation and evolution of nanocavities is developed. Computer simulations based on this model show that the nanocavities grow at elevated temperatures by absorption of argon–vacancy complexes formed during the ion irradiation. By comparison the calculations with experimental results, the migration energy of these complexes is estimated to be around 2.5–2.75 eV. Also, the value of dissociation energy of a complex, consisting of two vacancies and two argon atoms, is found to be equal to approximately 1.10–1.18 eV. The calculation of concentration of nanocavities at different annealing conditions reveals a satisfactory agreement with the experimental observations.
Originele taal-2Engels
Pagina's (van-tot)128-131
Aantal pagina's4
TijdschriftApplied Surface Science
Volume267
DOI's
StatusGepubliceerd - 2013

Vingerafdruk

Argon
bombardment
Copper
argon
Annealing
copper
annealing
Temperature
Scanning tunneling microscopy
Ion bombardment
ion irradiation
Vacancies
temperature
scanning tunneling microscopy
Desorption
Nucleation
X ray photoelectron spectroscopy
computerized simulation
desorption
photoelectron spectroscopy

Citeer dit

Kulikov, D.V. ; Kurnosikov, O. ; Kharlamov, V.S. ; Trushin, Yu.V. / Evolution of subsurface nanocavities in copper under argon bombardment and annealing. In: Applied Surface Science. 2013 ; Vol. 267. blz. 128-131.
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title = "Evolution of subsurface nanocavities in copper under argon bombardment and annealing",
abstract = "The experimental and theoretical studies of evolution of nanocavities in argon-irradiated copper under annealing are presented. The subsurface argon-filled nanocavities are formed during a short annealing at a temperature around 1000 K by migration and interaction of complexes of the simplest defects created by argon irradiation at room temperature. A long-time annealing at a temperature above 1075 K leads to decomposition of nanocavities and desorption of argon from the sample. Using the X-ray photoelectron spectroscopy and scanning tunneling microscopy and spectroscopy, valuable data sets including the density of nanocavities and their size and depth distribution are obtained. A theoretical model describing the nucleation and evolution of nanocavities is developed. Computer simulations based on this model show that the nanocavities grow at elevated temperatures by absorption of argon–vacancy complexes formed during the ion irradiation. By comparison the calculations with experimental results, the migration energy of these complexes is estimated to be around 2.5–2.75 eV. Also, the value of dissociation energy of a complex, consisting of two vacancies and two argon atoms, is found to be equal to approximately 1.10–1.18 eV. The calculation of concentration of nanocavities at different annealing conditions reveals a satisfactory agreement with the experimental observations.",
author = "D.V. Kulikov and O. Kurnosikov and V.S. Kharlamov and Yu.V. Trushin",
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Evolution of subsurface nanocavities in copper under argon bombardment and annealing. / Kulikov, D.V.; Kurnosikov, O.; Kharlamov, V.S.; Trushin, Yu.V.

In: Applied Surface Science, Vol. 267, 2013, blz. 128-131.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Evolution of subsurface nanocavities in copper under argon bombardment and annealing

AU - Kulikov, D.V.

AU - Kurnosikov, O.

AU - Kharlamov, V.S.

AU - Trushin, Yu.V.

PY - 2013

Y1 - 2013

N2 - The experimental and theoretical studies of evolution of nanocavities in argon-irradiated copper under annealing are presented. The subsurface argon-filled nanocavities are formed during a short annealing at a temperature around 1000 K by migration and interaction of complexes of the simplest defects created by argon irradiation at room temperature. A long-time annealing at a temperature above 1075 K leads to decomposition of nanocavities and desorption of argon from the sample. Using the X-ray photoelectron spectroscopy and scanning tunneling microscopy and spectroscopy, valuable data sets including the density of nanocavities and their size and depth distribution are obtained. A theoretical model describing the nucleation and evolution of nanocavities is developed. Computer simulations based on this model show that the nanocavities grow at elevated temperatures by absorption of argon–vacancy complexes formed during the ion irradiation. By comparison the calculations with experimental results, the migration energy of these complexes is estimated to be around 2.5–2.75 eV. Also, the value of dissociation energy of a complex, consisting of two vacancies and two argon atoms, is found to be equal to approximately 1.10–1.18 eV. The calculation of concentration of nanocavities at different annealing conditions reveals a satisfactory agreement with the experimental observations.

AB - The experimental and theoretical studies of evolution of nanocavities in argon-irradiated copper under annealing are presented. The subsurface argon-filled nanocavities are formed during a short annealing at a temperature around 1000 K by migration and interaction of complexes of the simplest defects created by argon irradiation at room temperature. A long-time annealing at a temperature above 1075 K leads to decomposition of nanocavities and desorption of argon from the sample. Using the X-ray photoelectron spectroscopy and scanning tunneling microscopy and spectroscopy, valuable data sets including the density of nanocavities and their size and depth distribution are obtained. A theoretical model describing the nucleation and evolution of nanocavities is developed. Computer simulations based on this model show that the nanocavities grow at elevated temperatures by absorption of argon–vacancy complexes formed during the ion irradiation. By comparison the calculations with experimental results, the migration energy of these complexes is estimated to be around 2.5–2.75 eV. Also, the value of dissociation energy of a complex, consisting of two vacancies and two argon atoms, is found to be equal to approximately 1.10–1.18 eV. The calculation of concentration of nanocavities at different annealing conditions reveals a satisfactory agreement with the experimental observations.

U2 - 10.1016/j.apsusc.2012.08.035

DO - 10.1016/j.apsusc.2012.08.035

M3 - Article

VL - 267

SP - 128

EP - 131

JO - Applied Surface Science

JF - Applied Surface Science

SN - 0169-4332

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