TY - JOUR
T1 - Heat spike effects on ion beam mixing
AU - Nordlund, K.
AU - Tarus, J.
AU - Keinonen, J.
AU - Ghaly, M.
AU - Averback, R. S.
N1 - Funding Information:
We acknowledge Dr. M. Toulemonde and Dr. I. Koponen for useful discussions about the nature of electron–phonon coupling. The research was supported by the Academy of Finland under projects No. 39190 and 44215, the US Department of Energy, Basic Energy Sciences under grant DEFG02-91ER45439 and the US National Science Foundation under grant NSF DMR-9632252. Grants of computer time from the National Energy Research Computer Center at Livermore, California, the National Center for Supercomputing Applications in Champaign, Illinois, and the Center for Scientific Computing in Espoo, Finland, are gratefully acknowledged.
PY - 2000/4
Y1 - 2000/4
N2 - Although ion beam mixing has been studied intensively over the last 20 years, many questions about the fundamental mechanisms involved during mixing remain unresolved. We review here recent simulation and experimental work which provides answers to some of the lingering questions about mixing in elemental materials. The results make clear the specific role which thermodynamic material properties, the nature of atomic bonding and electron-phonon coupling can have on ion beam mixing. Agreement obtained by direct comparison of simulated and experimental mixing coefficients gives confidence in our results, indicating that the experimental mixing values in heavy metals can be understood predominantly on the basis of atomic motion in liquid-like zones, and that the role of the electron-phonon coupling on ion beam mixing is much smaller than previously thought.
AB - Although ion beam mixing has been studied intensively over the last 20 years, many questions about the fundamental mechanisms involved during mixing remain unresolved. We review here recent simulation and experimental work which provides answers to some of the lingering questions about mixing in elemental materials. The results make clear the specific role which thermodynamic material properties, the nature of atomic bonding and electron-phonon coupling can have on ion beam mixing. Agreement obtained by direct comparison of simulated and experimental mixing coefficients gives confidence in our results, indicating that the experimental mixing values in heavy metals can be understood predominantly on the basis of atomic motion in liquid-like zones, and that the role of the electron-phonon coupling on ion beam mixing is much smaller than previously thought.
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U2 - 10.1016/S0168-583X(99)01010-1
DO - 10.1016/S0168-583X(99)01010-1
M3 - Conference article
AN - SCOPUS:0033740653
SN - 0168-583X
VL - 164
SP - 441
EP - 452
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
T2 - ICACS-18: 18th International Conference on Atomic Collisions in Solids
Y2 - 3 August 1999 through 8 August 1999
ER -