scholarly journals Transverse Acoustic Modes of Biogenic and α,ω-Polyamines:  A Study by Inelastic Neutron Scattering and Raman Spectroscopies Coupled to DFT Calculations

2006 ◽  
Vol 110 (47) ◽  
pp. 12947-12954 ◽  
Author(s):  
Luís A. E. Batista de Carvalho ◽  
M. Paula M. Marques ◽  
John Tomkinson
Keyword(s):  
Dft Calculations ◽  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Acoustic Modes ◽  
Transverse Acoustic

Inelastic neutron scattering from transverse acoustic modes in K2SnCl6

1984 ◽  
Vol 52 (10) ◽  
pp. 829-831 ◽  
Author(s):  
V. Waschk ◽  
J. Pelzl ◽  
K.-H. Höck ◽  
G. Eckold
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Acoustic Modes ◽  
Transverse Acoustic

scholarly journals Investigating anomalous thermal expansion of copper halides by inelastic neutron scattering and ab initio phonon calculations

2017 ◽  
Vol 19 (19) ◽  
pp. 12107-12116 ◽  
Author(s):  
Abhijith M. Gopakumar ◽  
M. K. Gupta ◽  
R. Mittal ◽  
S. Rols ◽  
S. L. Chaplot
Keyword(s):  
Thermal Expansion ◽  
Neutron Scattering ◽  
Ab Initio ◽  
Acoustic Phonon ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Volume Dependence ◽  
Transverse Acoustic ◽  
Anomalous Thermal Expansion ◽  
Copper Halides

The volume dependence of the frequency of the soft transverse acoustic phonon explains the anomalous thermal expansion in CuX.

Floppy modes and the Boson peak in crystalline and amorphous silicates: an inelastic neutron scattering study

2000 ◽  
Vol 64 (3) ◽  
pp. 435-440 ◽  
Author(s):  
M. J. Harris ◽  
M. T. Dove ◽  
J. M. Parker
Keyword(s):  
Neutron Scattering ◽  
Amorphous Materials ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Boson Peak ◽  
Pure Silica ◽  
Transverse Acoustic ◽  
Scattering Study ◽  
Neutron Scattering Study

AbstractWe present the results of an inelastic neutron scattering study of a crystalline polymorph of SiO2 (α-quartz), and a number of silicate glasses (pure silica, SiO2, and three glasses in the alkali series (K,Li)2Si2O5). We demonstrate the presence of the Boson peak in the inelastic spectra of the crystalline and amorphous materials and argue that it arises simply from the dispersion characteristics of transverse acoustic modes. Furthermore, we investigate the role of the lower-energy floppy modes in the inelastic spectra, and show that they are controlled by chemical effects.

scholarly journals Spectroscopic characterisation of centropolyindanes

2019 ◽  
Vol 21 (8) ◽  
pp. 4568-4577
Author(s):  
Stewart F. Parker ◽  
Lisha Zhong ◽  
Marco Harig ◽  
Dietmar Kuck
Keyword(s):  
Dft Calculations ◽  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Spectroscopic Characterisation

Fused indanes of increasing complexity have been investigated by inelastic neutron scattering, infrared and Raman spectroscopies, supported by DFT calculations.

Inelastic neutron scattering study of acoustic modes in a monodomain AlCuFe quasicrystal

1990 ◽  
Vol 51 (17) ◽  
pp. 1785-1790 ◽  
Author(s):  
M. Quilichini ◽  
G. Heger ◽  
B. Hennion ◽  
S. Lefebvre ◽  
A. Quivy
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Acoustic Modes ◽  
Scattering Study ◽  
Neutron Scattering Study
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