Elastic constants and lattice vibration frequencies of Mg2Si

1965 ◽  
Vol 26 (1) ◽  
pp. 49-56 ◽  
Author(s):  
W.B. Whitten ◽  
P.L. Chung ◽  
G.C. Danielson
1966 ◽  
Vol 4 (11) ◽  
pp. lxxv
Author(s):  
L.C. Davis ◽  
W.B. Whitten ◽  
G.C. Danielson

1989 ◽  
Vol 44 (3) ◽  
pp. 169-172 ◽  
Author(s):  
G. Kliche

The vibrational spectra of the cooperite type compounds PdO and PtS (space group P42/mmc - D4h9, Z = 2) are analyzed. Good agreement between experimental and calculated lattice vibration frequencies is obtained using a force field which includes short-range force constants only. This demonstrates a highly covalent bonding character of the cooperites.


1974 ◽  
Vol 29 (7-8) ◽  
pp. 343-350 ◽  
Author(s):  
Jean-Maurice Delabar

Abstract Isocytosine and isocytosine-d3 crystals have been investigated at 300 K, 90 K, and 10 K by infrared spectroscopy; the Raman spectra of crystals and solutions in H2O , D2O have also been studied. Using these data and the frequency group approximation we propose assignments of the fundamental molecular frequencies. Eleven lattice vibration frequencies have been observed in absorption and nine in diffusion.


1990 ◽  
Vol 59 (2) ◽  
pp. 579-583 ◽  
Author(s):  
Yuzo Tomono ◽  
Tosihide Takaoka ◽  
Masaaki Yajima ◽  
Yosiko Tanokura ◽  
Nan Jinda

1979 ◽  
Vol 64 (3) ◽  
pp. 491-494 ◽  
Author(s):  
S. Califano ◽  
R. Righini ◽  
S.H. Walmsley

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