Nanoscale Volcanoes: Accretion of Matter at Ion-Sculpted Nanopores | Zendy

Toshiyuki Mitsui | Zendy; Derek Stein | Zendy; YoungRok Kim | Zendy; David P. Hoogerheide | Zendy; J. A. Golovchenko | Zendy

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Nanoscale Volcanoes: Accretion of Matter at Ion-Sculpted Nanopores

Author(s) -

Toshiyuki Mitsui,

Derek Stein,

YoungRok Kim,

David P. Hoogerheide,

J. A. Golovchenko

Publication year - 2006

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.96.036102

Subject(s) - nanoscopic scale , nanopore , materials science , nanotechnology , silicon , ion , silicon nitride , ion beam , micrometer , volcano , focused ion beam , chemical physics , layer (electronics) , optics , optoelectronics , physics , geology , quantum mechanics , seismology

We demonstrate the formation of nanoscale volcano-like structures induced by ion-beam irradiation of nanoscale pores in freestanding silicon nitride membranes. Accreted matter is delivered to the volcanoes from micrometer distances along the surface. Volcano formation accompanies nanopore shrinking and depends on geometrical factors and the presence of a conducting layer on the membrane's back surface. We argue that surface electric fields play an important role in accounting for the experimental observations.

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