Modelling surface restructuring by slow highly charged ions

G. Wachter, K. Tőkési, G. Betz, C. Lemell, J. Burgdörfer

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We theoretically investigate surface modifications on alkaline earth halides due to highly charged ion impact, focusing on recent experimental evidence for both etch pit and nano-hillock formation on CaF2 (A.S. El-Said et al., Phys. Rev. Lett. 109, (2012) 117602 [1]). We discuss mechanisms for converting the projectile potential and kinetic energies into thermal energy capable of changing the surface structure. A proof-of-principle classical molecular dynamics simulation suggests the existence of two thresholds which we associate with etch pit and nano-hillock formation in qualitative agreement with experiment.

Original languageEnglish
Pages (from-to)149-153
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume317
Issue numberPART A
DOIs
Publication statusPublished - 2013

Fingerprint

Projectiles
Potential energy
Thermal energy
Kinetic energy
Surface structure
Surface treatment
Molecular dynamics
Earth (planet)
ion impact
Computer simulation
Ions
thermal energy
halides
projectiles
ions
kinetic energy
Experiments
potential energy
molecular dynamics
thresholds

Keywords

  • Etch pit
  • Molecular dynamics
  • Nano-hillock
  • Surface modification

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Modelling surface restructuring by slow highly charged ions. / Wachter, G.; Tőkési, K.; Betz, G.; Lemell, C.; Burgdörfer, J.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 317, No. PART A, 2013, p. 149-153.

Research output: Contribution to journalArticle

@article{176defbb70e045af8c257ae1b13fe2a7,
title = "Modelling surface restructuring by slow highly charged ions",
abstract = "We theoretically investigate surface modifications on alkaline earth halides due to highly charged ion impact, focusing on recent experimental evidence for both etch pit and nano-hillock formation on CaF2 (A.S. El-Said et al., Phys. Rev. Lett. 109, (2012) 117602 [1]). We discuss mechanisms for converting the projectile potential and kinetic energies into thermal energy capable of changing the surface structure. A proof-of-principle classical molecular dynamics simulation suggests the existence of two thresholds which we associate with etch pit and nano-hillock formation in qualitative agreement with experiment.",
keywords = "Etch pit, Molecular dynamics, Nano-hillock, Surface modification",
author = "G. Wachter and K. Tők{\'e}si and G. Betz and C. Lemell and J. Burgd{\"o}rfer",
year = "2013",
doi = "10.1016/j.nimb.2013.01.046",
language = "English",
volume = "317",
pages = "149--153",
journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",
issn = "0168-583X",
publisher = "Elsevier",
number = "PART A",

}

TY - JOUR

T1 - Modelling surface restructuring by slow highly charged ions

AU - Wachter, G.

AU - Tőkési, K.

AU - Betz, G.

AU - Lemell, C.

AU - Burgdörfer, J.

PY - 2013

Y1 - 2013

N2 - We theoretically investigate surface modifications on alkaline earth halides due to highly charged ion impact, focusing on recent experimental evidence for both etch pit and nano-hillock formation on CaF2 (A.S. El-Said et al., Phys. Rev. Lett. 109, (2012) 117602 [1]). We discuss mechanisms for converting the projectile potential and kinetic energies into thermal energy capable of changing the surface structure. A proof-of-principle classical molecular dynamics simulation suggests the existence of two thresholds which we associate with etch pit and nano-hillock formation in qualitative agreement with experiment.

AB - We theoretically investigate surface modifications on alkaline earth halides due to highly charged ion impact, focusing on recent experimental evidence for both etch pit and nano-hillock formation on CaF2 (A.S. El-Said et al., Phys. Rev. Lett. 109, (2012) 117602 [1]). We discuss mechanisms for converting the projectile potential and kinetic energies into thermal energy capable of changing the surface structure. A proof-of-principle classical molecular dynamics simulation suggests the existence of two thresholds which we associate with etch pit and nano-hillock formation in qualitative agreement with experiment.

KW - Etch pit

KW - Molecular dynamics

KW - Nano-hillock

KW - Surface modification

UR - http://www.scopus.com/inward/record.url?scp=84888874572&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84888874572&partnerID=8YFLogxK

U2 - 10.1016/j.nimb.2013.01.046

DO - 10.1016/j.nimb.2013.01.046

M3 - Article

VL - 317

SP - 149

EP - 153

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

SN - 0168-583X

IS - PART A

ER -