Open AccessVAPOR-DEPOSITION AND MIGRATION OF IRON ON TUNGSTEN TIPS
Author(s) -
Hiroshi Morikawa,
Toshiki Hara,
Fumio Iwatsu,
Terumi Terao
Publication year - 1989
Publication title -
le journal de physique colloques
Language(s) - English
Resource type - Journals
eISSN - 2777-3418
pISSN - 0449-1947
DOI - 10.1051/jphyscol:1989848
Subject(s) - tungsten , deposition (geology) , chemical vapor deposition , materials science , metallurgy , nanotechnology , chemical engineering , geology , environmental science , engineering , paleontology , sediment
Field ion microscopic observation was carried out on iron films vapor-deposited onto a tungsten tip from the direction normal to the tip axis. Two kinds of experiments were performed : (i) iron was deposited onto a tip kept at cryogenic temperatures and then heated up to the temperatures 450-750K and (ii) iron was deposited onto a tip at the same temperatures as in (i). The area of the deposited iron images was less than a half of the tip cap in the case (i) and more than a half in the case (ii), probably owing to the momentum carried by the deposited iron atoms
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