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 language | English (US) |
|---|---|
| Pages (from-to) | 321-323 |
| Number of pages | 3 |
| Journal | Nuclear Inst. and Methods in Physics Research, B |
| Volume | 40-41 |
| Issue number | PART 1 |
| DOIs | |
| State | Published - Apr 2 1989 |
| Externally published | Yes |
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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 journal › Article
}
TY - JOUR
T1 - Calculation of stopping powers in ordered ultrathin films
AU - Trickey, S. B.
AU - Meltzer, David
AU - Sabin, J. R.
PY - 1989/4/2
Y1 - 1989/4/2
N2 - 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.
AB - 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.
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U2 - 10.1016/0168-583X(89)90989-0
DO - 10.1016/0168-583X(89)90989-0
M3 - Article
VL - 40-41
SP - 321
EP - 323
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 1
ER -