Abstract

Ion bombardment causes surface instabilities on a range of materials including metals, semiconductors, and insulators. However, the proposed mechanisms for these instabilities have yet to explain the rich range of nanometer-scale patterns that are observed experimentally. Here we show that smoothing balanced by impact angle dependent mass redistribution explains the atomistic origin of ripple formation and orientation, particularly angle dependent transitions between different orientations. A competition between the mass accumulated on the surface and the hole created on the surface determines the orientation of ripples. Results are consistent with experimental observations for a range of ions, ion energies, and targets.

Original languageEnglish (US)
Article number151913
JournalApplied Physics Letters
Volume99
Issue number15
DOIs
StatePublished - Oct 10 2011

Fingerprint

ion impact
ripples
craters
asymmetry
ions
smoothing
bombardment
insulators
causes
metals
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Ion impact crater asymmetry determines surface ripple orientation. / Hossain, M. Z.; Das, K.; Freund, J. B.; Johnson, H. T.

In: Applied Physics Letters, Vol. 99, No. 15, 151913, 10.10.2011.

Research output: Contribution to journalArticle

@article{d23f1a591563473aa56d841931e1de95,
title = "Ion impact crater asymmetry determines surface ripple orientation",
abstract = "Ion bombardment causes surface instabilities on a range of materials including metals, semiconductors, and insulators. However, the proposed mechanisms for these instabilities have yet to explain the rich range of nanometer-scale patterns that are observed experimentally. Here we show that smoothing balanced by impact angle dependent mass redistribution explains the atomistic origin of ripple formation and orientation, particularly angle dependent transitions between different orientations. A competition between the mass accumulated on the surface and the hole created on the surface determines the orientation of ripples. Results are consistent with experimental observations for a range of ions, ion energies, and targets.",
author = "Hossain, {M. Z.} and K. Das and Freund, {J. B.} and Johnson, {H. T.}",
year = "2011",
month = "10",
day = "10",
doi = "10.1063/1.3650469",
language = "English (US)",
volume = "99",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "15",

}

TY - JOUR

T1 - Ion impact crater asymmetry determines surface ripple orientation

AU - Hossain, M. Z.

AU - Das, K.

AU - Freund, J. B.

AU - Johnson, H. T.

PY - 2011/10/10

Y1 - 2011/10/10

N2 - Ion bombardment causes surface instabilities on a range of materials including metals, semiconductors, and insulators. However, the proposed mechanisms for these instabilities have yet to explain the rich range of nanometer-scale patterns that are observed experimentally. Here we show that smoothing balanced by impact angle dependent mass redistribution explains the atomistic origin of ripple formation and orientation, particularly angle dependent transitions between different orientations. A competition between the mass accumulated on the surface and the hole created on the surface determines the orientation of ripples. Results are consistent with experimental observations for a range of ions, ion energies, and targets.

AB - Ion bombardment causes surface instabilities on a range of materials including metals, semiconductors, and insulators. However, the proposed mechanisms for these instabilities have yet to explain the rich range of nanometer-scale patterns that are observed experimentally. Here we show that smoothing balanced by impact angle dependent mass redistribution explains the atomistic origin of ripple formation and orientation, particularly angle dependent transitions between different orientations. A competition between the mass accumulated on the surface and the hole created on the surface determines the orientation of ripples. Results are consistent with experimental observations for a range of ions, ion energies, and targets.

UR - http://www.scopus.com/inward/record.url?scp=80055004684&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80055004684&partnerID=8YFLogxK

U2 - 10.1063/1.3650469

DO - 10.1063/1.3650469

M3 - Article

AN - SCOPUS:80055004684

VL - 99

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 15

M1 - 151913

ER -