Orientational Phase Transition and Dynamic Susceptibility of Hindered-Rotating Dipolar System : A Librator-Rotator Model

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概要

• 論文の詳細を見る

• A microscopic theory is presented to study the two-directional orientational phase transition of the interacting dipolar system and its dynamic susceptibility in the paraelectric phase. On the basis of a classical mechanical model that the librational and the rotational motion for a dipole in the hindered-rotation potential can be treated exactly, the statistical mechanical calculations are carried out in the framework of the molecular field approximation and the linear response theory. In this approximation, several characteristic quantities such as Curie temperature, specific heat, static and dynamic susceptibilities, etc. are all obtained rigorously. The present model recovers the dynamics proper to the dipolar motion in the studies of the orientational phase transition and its dynamic susceptibility, so that it offers an approach different from the conventional pseudo-Ising spin model.

• 社団法人日本物理学会の論文
• 1994-03-15

著者

• Naya S

  School Of Science Kwansei Gakuin University

• Naya Shigeo

  School Of Science Kwansei Gakuin University

• Nakajima Yoshiki

  School of Science, Kwansei Gakuin University

• Nakajima Y

  School Of Science Kwansei Gakuin University

• Nakajima Yoshiki

  School Of Science Kwansei Gakuin University

• NAYA Shigeo

  Department of Physics,Faculty of Science Kwansei Gakuin University

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• Orientational Phase Transition in a Two-Dimensional Molecular Crystal with Random Pairwise Interactions
• Orientational Phase Transition and Dynamic Susceptibility of Hindered-Rotating Dipolar System : A Librator-Rotator Model
• Comments on the Melting and the Size Dependence of Melting Temperature in Metallic Fine Particles
• Order-Parameter Expansion of Free Energy and Its Application to Some Models with First and Second Order Phase Transitions
• Note on the Penetration of Surface Vibration and the Melting Based on the Self-Consistent Einstein Model
• Freeze-In Transition of Anharmonic Oscillator System with Quenched Random Interactions
• Orientational Phase Transitions of Dumbbell-Shaped Molecules Arranged on Decorated Square and Kagome Lattices

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