2012
DOI: 10.1134/s1063783412030213
|View full text |Cite
|
Sign up to set email alerts
|

Shift and broadening of surface polaritons of sapphire upon deposition of a quasicrystalline film

Abstract: The influence of a quasicrystalline Al-Pd-Re film on the shift and broadening of surface polari tons of a substrate (sapphire) has been studied. Measurements have been performed both on a sample con taining only the quasicrystalline phase and on a sample which, in addition to the quasicrystalline phase, con tains the crystalline (metallic) phase. The complex dielectric function of the films in the mid IR region (650⎯800 cm -1 ) has been estimated.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1

Citation Types

0
4
0

Year Published

2012
2012
2022
2022

Publication Types

Select...
3
1

Relationship

0
4

Authors

Journals

citations
Cited by 4 publications
(4 citation statements)
references
References 9 publications
0
4
0
Order By: Relevance
“…The factor of three takes into account that we are here considering a linear Grü neisen parameter instead of the volume parameter considered by Frenkel & Rehr (1993). The volume Grü neisen parameter of CdTe evaluated at 300 K from the experimental coefficient of lattice thermal expansion, specific heat and compressibility is 0.6 (Novikova, 1961;Smith & White, 1975); the same value has been recently obtained by ab initio lattice dynamics calculations (Wang et al, 2014). To compare this value with the bond Grü neisen parameter of Fig.…”
Section: Figurementioning
confidence: 77%
“…The factor of three takes into account that we are here considering a linear Grü neisen parameter instead of the volume parameter considered by Frenkel & Rehr (1993). The volume Grü neisen parameter of CdTe evaluated at 300 K from the experimental coefficient of lattice thermal expansion, specific heat and compressibility is 0.6 (Novikova, 1961;Smith & White, 1975); the same value has been recently obtained by ab initio lattice dynamics calculations (Wang et al, 2014). To compare this value with the bond Grü neisen parameter of Fig.…”
Section: Figurementioning
confidence: 77%
“…2 and 3. Negative values of Δ R should therefore be expected for each distance, corresponding to the materials’ thermal contraction at LN 2 temperature, 52,53 barring anomalous vibrational effects on the EXAFS. 54–56 N i for each path was set to its known crystallographic value: N 1 = 4, N 2 = 12, and N 3 = 12.…”
Section: Fitting Resultsmentioning
confidence: 96%
“…One possible factor is the mismatch in the coefficients of thermal expansion (CTE) between GaAs and HfO 2 . GaAs has a linear CTE of 5.73 Â 10 À6 C À1 for temperatures above 100 C, 11 while the average linear expansion coefficient of HfO 2 is 4.4 Â 10 À6 C À1 in the 25-1000 C temperature range. 12 Assuming a stress free state at the deposition temperature of 200 C, the annealing process should induce tensile stresses in the HfO 2 but not compressive ones, as observed in practice.…”
Section: Resultsmentioning
confidence: 99%