Crystal Structures and Intermolecular Forces of Rare Gases
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概要
- 論文の詳細を見る
By means of models of intermolecular potential U(r), the total energy of molecular crystals is calculated provided the additivity of intermolecular forces is valid. If the Lennard-Jones model, U(r)=U_0(s-6)^<-1>[6(r_0/r)^s-s(r_0/r)^6], is used, the lattice of hexagonal closest packing has always a lower energy than that of cubic closet packing. If the model, U(r)=U_0(б-6)^<-3>[6 exp (б-бr/r_0)- б(r_0/r)^6] is used, there is a critical value ofб, б_0=8.675, above which the hexagonal is stab]e and below which the cubic is stable. In general, in order that the cubic structure has a lower energy as in the case of rare gases, it is necessary (although not sufficient) that the hollow part of the intermolecular potential is wide enough, much wider than that of U(r) = U_0[r_0/r)^<12>-2(r_0/r)^6] for instance. These results are in agreement with the conclusions which Kihara has obtained by investigating the third virial coefficients of the equation of state for rare gases.
- 社団法人日本物理学会の論文
- 1952-08-25
著者
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Kihara Taro
Department Of Physics Faculty Of Scicnce University Of Tokyo
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Kihara Taro
Department Of Physics Faculity Of Science University Of Tokyo
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Koba Saburo
Department Of Physics Faculty Of Scicnce University Of Tokyo
関連論文
- Ion-Electron Relaxation of Plasmas in a Magnetic Field, II
- Second Virial Coefficient of Helium from the Square-well Potential
- Temperature Variation of Mayer's Cluster Integrals
- Transport Properties of Plasmas in a Strong Magnetic Field
- Virial Coefficients and Intermolecular Potential for Small Nonspherical Molecules
- Virial Coefficients and Intermolecular Potential of Helium
- Statistics of Two-Dimensional Lattices with Many Components
- Non-additive Intermolecular Potential in Gases : I. van der Waals Interactions
- Energy Loss by a Sequence of Fast Charges in a Plasma
- Unified Theory of Relaxations in Plasmas, I. Basic Theorem
- Unified Theory of Relaxations in Plasmas : II. Applications
- Confirmation of the Existence of a Helium Double-Molecule
- Unified Theory of Relaxations in Plasmas.III. : Quantum Effects
- The Second Virial Coefficient of Non-Spherical Molecules.
- Van der Waals-Lifshitz Forces of Spheroidal Particles in a Liquid
- Fluctuations in a Plasma III : Effect of the Magnetic Field on the Stopping Power
- Ion-Electron Relaxation of Plasmas in a Strong Magnetic Field : I
- Magnetohydrostatic Equilibrium for Plasma in a Torus Tube
- Determination of Intermolecular Forces from the Equation of State of Gases. II.
- Non-additive Intermolecular Potential in Gases : II. Cluster Integrals
- Externally Pinched Plasma
- Thermodynamic Foundation of the Theory of Plasma
- Convex-Core Model of Molecules in Crystalline State
- On the Coefficients of Irreversible Processes in a Highly Ionized Gas
- Macroscopic Foundation of Plasma Dynamics
- Convex-Core Model of Molecules in Crystalline State. II
- Convex Molecules in Non-Uniform Gases : Supplement
- Second Virial Coefficient between Unlike Molecules
- Crystal Structures and Intermolecular Forces of Rare Gases
- Geometrical Theory of Convex Molecules in Non-Uniform Gases
- Intermolecular Forces for Polyatomic Molecules
- On Isihara-Hayashida's Theory of the Second Virial Coefficient for Rigid Convex Molecules