Phonon density of states of the quasi-one-dimensional molybdenum selenidesM2Mo6Se6(M=Tl, In, Rb, and vacancy): Evidence of Einstein-likeM-atom modes in the superconducting compounds

1990 ◽  
Vol 41 (10) ◽  
pp. 6315-6320 ◽  
Author(s):  
R. Brusetti ◽  
A. J. Dianoux ◽  
P. Gougeon ◽  
M. Potel ◽  
E. Bonjour ◽  
...  
Keyword(s):  
Density Of States ◽  
Phonon Density ◽  
Phonon Density Of States ◽  
One Dimensional ◽  
Superconducting Compounds

scholarly journals Application of Nuclear Inelastic Scattering Spectroscopy to the Frequency Scale Calibration of Ab Initio Calculated Phonon Density of States of Quasi-One-Dimensional Ternary Iron Chalcogenide RbFeSe2

2020 ◽  
Vol 10 (20) ◽  
pp. 7212
Author(s):  
Airat Kiiamov ◽  
Vladimir Tsurkan ◽  
Dorina Croitori ◽  
Hans-Albrecht Krug von Nidda ◽  
Zakir Seidov ◽  
...  
Keyword(s):  
Inelastic Scattering ◽  
Ab Initio ◽  
Temperature Dependence ◽  
Density Of States ◽  
Nuclear Inelastic Scattering ◽  
Phonon Density ◽  
Phonon Density Of States ◽  
One Dimensional ◽  
Frequency Scale ◽  
Frequency Correction

This study aims to examine the applicability of nuclear inelastic scattering (NIS) and conventional Mössbauer spectroscopy for calibration of the frequency scale of ab initio calculated phonon density of states (PDOS) of iron ternary chalcogenides. NIS measurements are carried out on the quasi-one-dimensional ternary chalcogenide RbFeSe2 to obtain the partial PDOS of the iron atoms in the compound. We compare the experimental PDOS with our previous results on vibrational properties of RbFeSe2 obtained with density functional theory (DFT) ab initio calculations, conventional Mössbauer, and infra-red spectroscopies. The experimental PDOS measured by NIS is collated with the ab initio calculated one. The frequency correction factor for the ab initio results is determined as 1.077, in good agreement with value of 1.08 obtained previously from the temperature dependence of the Lamb–Mössbauer factor of the iron atoms in RbFeSe2. We conclude that nuclear inelastic scattering and temperature dependence of the Lamb–Mössbauer factor in conventional Mössbauer spectroscopy can be equally applied for evaluation of the frequency correction factor for ab initio calculated phonon density of iron of ternary chalcogenides.

Phonon Density of States of the Quasi-One-Dimensional Superconductor Tl 2 Mo 6 Se 6

1989 ◽  
Vol 10 (6) ◽  
pp. 563-568 ◽  
Author(s):  
R Brusetti ◽  
A. J Dianoux ◽  
P Gougeon ◽  
M Potel ◽  
E Bonjour ◽  
...  
Keyword(s):  
Density Of States ◽  
Phonon Density ◽  
Phonon Density Of States ◽  
One Dimensional

The solids phonon density of states reconstruction from the heat-type experiments: the computation resources

1998 ◽  
Vol 3 (0) ◽  
pp. 135-138
Author(s):  
В. М. Різак ◽  
І. М. Різак ◽  
І. П. Коссей ◽  
В. В. Маслюк
Keyword(s):  
Density Of States ◽  
Phonon Density ◽  
Phonon Density Of States

scholarly journals Phonon density of states in Fe/Cr(001) superlattices and Tb–Fe thin-film alloys

1999 ◽  
Vol 198-199 ◽  
pp. 590-592 ◽  
Author(s):  
W. Sturhahn ◽  
R. Roehlsberger ◽  
E.E. Alp ◽  
T. Ruckert ◽  
H. Schrör ◽  
...  
Keyword(s):  
Thin Film ◽  
Density Of States ◽  
Phonon Density ◽  
Phonon Density Of States

Excess Low Temperature Specific Heat and Related Phonon Density of States in a Modulated Incommensurate Dielectric

1996 ◽  
Vol 76 (13) ◽  
pp. 2334-2337 ◽  
Author(s):  
J. Etrillard ◽  
J. C. Lasjaunias ◽  
K. Biljakovic ◽  
B. Toudic ◽  
G. Coddens
Keyword(s):  
Low Temperature ◽  
Specific Heat ◽  
Density Of States ◽  
Phonon Density ◽  
Phonon Density Of States ◽  
Low Temperature Specific Heat
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