TY - JOUR
T1 - Burrowing of nanoparticles on clean metal substrates
T2 - Surface smoothing on a nanoscale
AU - Herr, U.
AU - Samwer, K.
AU - Zimmermann, C. G.
AU - Nordlund, K.
AU - Yeadon, M.
AU - Gibson, J. M.
AU - Averback, R. S.
PY - 2001
Y1 - 2001
N2 - We have investigated soft landings of Co nanoparticles on clean Cu(001) surfaces. The nanoparticles, ≈10 nm in size, were generated by dc magnetron sputtering in argon and transferred in the gas stream to an ultrahigh vacuum transmission electron microscope (TEM), where they were deposited on the thin-film substrate. The surface morphology created in this fashion exhibits a unique smoothing mechanism. The nanoparticles do not remain on the surface at temperatures as low as 600 K, but rather reorient and burrow into the substrate. By analyzing the TEM data in combination with molecular dynamics simulations, we were able to study this process in detail and to develop a model to quantify the temperature and cluster size dependence of burrowing.
AB - We have investigated soft landings of Co nanoparticles on clean Cu(001) surfaces. The nanoparticles, ≈10 nm in size, were generated by dc magnetron sputtering in argon and transferred in the gas stream to an ultrahigh vacuum transmission electron microscope (TEM), where they were deposited on the thin-film substrate. The surface morphology created in this fashion exhibits a unique smoothing mechanism. The nanoparticles do not remain on the surface at temperatures as low as 600 K, but rather reorient and burrow into the substrate. By analyzing the TEM data in combination with molecular dynamics simulations, we were able to study this process in detail and to develop a model to quantify the temperature and cluster size dependence of burrowing.
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U2 - 10.1103/PhysRevB.64.085419
DO - 10.1103/PhysRevB.64.085419
M3 - Article
AN - SCOPUS:85038917303
SN - 1098-0121
VL - 64
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 8
ER -