Calculation of stopping powers in ordered ultrathin films

S. B. Trickey, David Meltzer, J. R. Sabin

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Because v-layer systems with v = 1,2,3,... are the clear laminar limit of nanoscale technologies, predictive calculation of their properties is an important coming need. Strong quantum size effects (QSE) arise in v-layers from the existence of multiple scale lengths (basically thickness and lattice spacing). A simple electron gas argument shows that QSE will be manifest in stopping. The challenge is that modern crystal and film calculations almost always are based on density functional theory in the local density approximation because it usually predicts the energetically favored lattice spacing, symmetry, and cohesive energy well. Contrary to prior usage in stopping theory, the theory provides no wavefunctions and its one-electron energies have known flaws as spectroscopic quantities. In response to these difficulties, we consider some state-dependent local plasma approximations and report the first tests on atoms.

Original languageEnglish (US)
Pages (from-to)321-323
Number of pages3
JournalNuclear Inst. and Methods in Physics Research, B
Volume40-41
Issue numberPART 1
DOIs
StatePublished - Apr 2 1989
Externally publishedYes

Fingerprint

Ultrathin films
stopping power
stopping
spacing
Local density approximation
Electron gas
Wave functions
approximation
Crystal lattices
Density functional theory
electron gas
electron energy
density functional theory
Plasmas
Atoms
Defects
Crystals
Electrons
defects
symmetry

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

Cite this

Calculation of stopping powers in ordered ultrathin films. / Trickey, S. B.; Meltzer, David; Sabin, J. R.

In: Nuclear Inst. and Methods in Physics Research, B, Vol. 40-41, No. PART 1, 02.04.1989, p. 321-323.

Research output: Contribution to journalArticle

Trickey, S. B. ; Meltzer, David ; Sabin, J. R. / Calculation of stopping powers in ordered ultrathin films. In: Nuclear Inst. and Methods in Physics Research, B. 1989 ; Vol. 40-41, No. PART 1. pp. 321-323.
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