Contribution of π-bonds to effective charges, cohesive energy, and force constants of graphene-like compounds

2016 ◽  
Vol 58 (2) ◽  
pp. 402-412 ◽  
Author(s):  
S. Yu. Davydov
Keyword(s):  
Cohesive Energy ◽  
Force Constants ◽  
Effective Charges

Microscopic Mechanisms for Reduced Static Dielectric Constants in Si-O-F Alloy Films

1997 ◽  
Vol 476 ◽  
Author(s):  
H. Yang ◽  
G. Lucovsky
Keyword(s):  
Dielectric Constant ◽  
Alloy System ◽  
Dielectric Constants ◽  
Force Constants ◽  
Significant Fraction ◽  
Alloy Films ◽  
Bond Stretching ◽  
Effective Charges ◽  
Static Dielectric Constants ◽  
Recent Attention

AbstractThere is considerable interest in insulators with static dielectric constants lower than SiO2; an alloy system attracting recent attention is Si-O-F. Alloying of F atoms into plasma-deposited SiO2 films leads to major changes in the SiO2 bond-stretching and -bending infrared bands accounting for a significant fraction of the reduction in the dielectric constant. These changes are explained by F induced modifications of force constants and effective charges of the neighboring Si-O-Si groups.

Force constants and chemical hardnesses

1997 ◽  
Vol 92 (3) ◽  
pp. 353-358 ◽  
Author(s):  
S. ARULMOZHIRAJA ◽  
P. KOLANDAIVEL
Keyword(s):  
Force Constants

Note on the Force Constants for the Borohydride Ion

1962 ◽  
Vol 32 (3_4) ◽  
pp. 219-221 ◽  
Author(s):  
N. Brearley ◽  
S. Sundaram
Keyword(s):  
Force Constants
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