Nontransferable van der Waals potentials: Insulators at high pressure

Journal Article · Sun Nov 15 00:00:00 EST 1987 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.36.7586· OSTI ID:5737901

Maggs, A C; Ashcroft, N W

For a simple model whose cohesion is dominated by dispersion forces we show that the expansion of the energy in terms of multicenter interactions is ill conditioned at a low density. This density is physically realizable for systems with highly polarizable atoms, and in these circumstances an alternative expression for the internal energy is required. For polarizable systems the requisite densities are readily achievable with the use of modern high-pressure capabilities and have consequences for the interpretation of equation-of-state data in terms of potential-energy functions.

• Research Organization: Laboratory of Atomic and Solid State Physics, Clark Hall, Cornell University, Ithaca, New York 14853-2501
• OSTI ID: 5737901
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 36:14
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRICAL INSULATORS
INTERATOMIC FORCES
EFFECTIVE RANGE THEORY
EQUATIONS OF STATE
LIQUIDS
MANY-BODY PROBLEM
PAIRING INTERACTIONS
PRESSURE EFFECTS
SOLIDS
VAN DER WAALS FORCES
ELECTRICAL EQUIPMENT
EQUATIONS
EQUIPMENT
FLUIDS
INTERACTIONS
656002* - Condensed Matter Physics- General Techniques in Condensed Matter- (1987-)