Van Der Waals Interaction and the Stability of Helical Polypeptide Chains

Nature ◽  
1965 ◽  
Vol 206 (4983) ◽  
pp. 456-458 ◽  
Author(s):  
P. DE SANTIS ◽  
E. GIGLIO ◽  
A. M. LIQUORI ◽  
A. RIPAMONTI
Keyword(s):  
Van Der Waals ◽  
Van Der Waals Interaction ◽  
The Stability ◽  
Polypeptide Chains

Thermodynamic Stability of Hexagonal and Rhombohedral Bn at Cvd Conditions from Van der Waals Corrected First Principles Calculations

2019 ◽  
Author(s):  
Henrik Pedersen ◽  
Björn Alling ◽  
Hans Högberg ◽  
Annop Ektarawong
Keyword(s):  
Thin Films ◽  
Thermodynamic Stability ◽  
First Principles ◽  
Thermal Equilibrium ◽  
Density Functional ◽  
Van Der Waals ◽  
Chemical Vapor ◽  
First Principles Calculations ◽  
Functional Theory ◽  
The Stability

Thin films of boron nitride (BN), particularly the sp<sup>2</sup>-hybridized polytypes hexagonal BN (h-BN) and rhombohedral BN (r-BN) are interesting for several electronic applications given band gaps in the UV. They are typically deposited close to thermal equilibrium by chemical vapor deposition (CVD) at temperatures and pressures in the regions 1400-1800 K and 1000-10000 Pa, respectively. In this letter, we use van der Waals corrected density functional theory and thermodynamic stability calculations to determine the stability of r-BN and compare it to that of h-BN as well as to cubic BN and wurtzitic BN. We find that r-BN is the stable sp<sup>2</sup>-hybridized phase at CVD conditions, while h-BN is metastable. Thus, our calculations suggest that thin films of h-BN must be deposited far from thermal equilibrium.

Isotope effects on the stability of the nitrogen—acetylene van der Waals dimer

1993 ◽  
Vol 171 (1-2) ◽  
pp. 89-95 ◽  
Author(s):  
Sean A.C. McDowell ◽  
A. David Buckingham
Keyword(s):  
Isotope Effects ◽  
Van Der Waals ◽  
The Stability ◽  
Van Der Waals Dimer

Effect of media overcoat on van der Waals interaction at the head–disk interface

2005 ◽  
Vol 97 (12) ◽  
pp. 126106 ◽  
Author(s):  
Raymond R. Dagastine ◽  
Lee R. White ◽  
Paul M. Jones ◽  
Yiao-Tee Hsia
Keyword(s):  
Van Der Waals ◽  
Van Der Waals Interaction ◽  
Head Disk Interface ◽  
Disk Interface
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