Lattice dynamics of KCN and NaCN in the antiferroelectric phase III

1984 ◽  
Vol 62 (8) ◽  
pp. 725-729 ◽  
Author(s):  
Pier Francesco Fracassi ◽  
Michael L. Klein
Keyword(s):  
Raman Spectra ◽  
Lattice Dynamics ◽  
Phase Iii ◽  
Antiferroelectric Phase ◽  
Repulsive Interactions ◽  
Interionic Potential

Lattice dynamics calculations are reported for the k = 0 modes of the ordered antiferroelectric phase III of solid potassium and sodium cyanides. The calculations are based on an interionic potential including electrostatic, dispersive, and repulsive interactions. The effect of these interactions on the librational modes of the system is discussed, and the results are compared with the observed Raman spectra for both materials.

Raman spectra and lattice dynamics of the α phases of nitrogen and carbon monoxide crystals

1970 ◽  
Vol 48 (19) ◽  
pp. 2265-2271 ◽  
Author(s):  
A. Anderson ◽  
T. S. Sun ◽  
M. C. A. Donkersloot
Keyword(s):  
Carbon Monoxide ◽  
Raman Spectra ◽  
Lattice Dynamics ◽  
Jones Potential ◽  
Lennard Jones ◽  
Neon Laser ◽  
Helium Neon Laser ◽  
First Time ◽  
Helium Neon ◽  
Argon Ion

The Raman spectra of polycrystalline α-nitrogen and α-carbon monoxide have been recorded at 18 °K, using argon–ion and helium–neon laser excitation. Previously undetected peaks at 60 cm−1 for N2 and 90.5 cm−1 for CO are assigned as librational modes, and splitting of the stretching mode in nitrogen is observed for the first time. Spectral features in both the intramolecular and lattice regions are assigned in accordance with accepted crystal structures, and their frequencies compared with those obtained from calculations based on a spherical Lennard–Jones potential and quadrupole–quadrupole interactions between the molecules.

Raman spectra and lattice dynamics of intermixed AlAs/GaAs superlattices

1997 ◽  
Vol 81 (1) ◽  
pp. 224-233 ◽  
Author(s):  
M. P. Halsall ◽  
P. Dawson
Keyword(s):  
Raman Spectra ◽  
Lattice Dynamics

Hydrostatic pressure-induced phase transitions in RbMnCl3: Raman spectra and lattice dynamics

2004 ◽  
Vol 46 (7) ◽  
pp. 1301-1310 ◽  
Author(s):  
A. N. Vtyurin ◽  
S. V. Goryainov ◽  
N. G. Zamkova ◽  
V. I. Zinenko ◽  
A. S. Krylov ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Hydrostatic Pressure ◽  
Raman Spectra ◽  
Lattice Dynamics

Lattice dynamics and Raman spectra of strained hexagonal GaN/AlN and GaN/AlGaN superlattices

2003 ◽  
Vol 0 (7) ◽  
pp. 2035-2038 ◽  
Author(s):  
V. Yu. Davydov ◽  
A. N. Smirnov ◽  
M. B. Smirnov ◽  
S. V. Karpov ◽  
I. N. Goncharuk ◽  
...  
Keyword(s):  
Raman Spectra ◽  
Lattice Dynamics

Raman spectra ofAgxTiS2and lattice dynamics ofTiS2

1992 ◽  
Vol 45 (24) ◽  
pp. 14347-14353 ◽  
Author(s):  
S. Jiménez Sandoval ◽  
X. K. Chen ◽  
J. C. Irwin
Keyword(s):  
Raman Spectra ◽  
Lattice Dynamics

Raman spectra and lattice dynamics of the halogen cyanide crystals

1974 ◽  
Vol 2 (6) ◽  
pp. 573-583 ◽  
Author(s):  
T. S. Sun ◽  
A. Anderson
Keyword(s):  
Raman Spectra ◽  
Lattice Dynamics
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