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<p>The paper presents the analytic expressions of nearest neighbor distance between two particle, Helmholtz free energy, thermodynamic and structural quantities for hcp crystals on the basis of the statistical moment method (SMM) taking into account of vibrational motion of particles, Helmholtz free energy and thermodynamic quantities for hcp crystals on the basis of the self-consistent field method (SCFM) taking into account of molecular motion. The theoretical results are applied to calculate numerically for hcp-N<sub>2</sub>. Some numerical results are compared with experiments and other calculations.</p>

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Study on Structural and Thermodynamic Properties of Solid Nitrogen with HCP Structure by Statistical Moment Method

  • 期刊论文

  • 发表日期：

    2025年5月30日

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  • Hoc Quang Nguyen,
  • Linh Mai Thi Le,
  • Yen Hai Le,
  • Huyen Ngoc Thi Ha,
  • Hoa Ngoc Pham,
  • Dat Xuan Hua,
  • Cuong Chinh Nguyen

摘要

The paper presents the analytic expressions of nearest neighbor distance between two particle, Helmholtz free energy, thermodynamic and structural quantities for hcp crystals on the basis of the statistical moment method (SMM) taking into account of vibrational motion of particles, Helmholtz free energy and thermodynamic quantities for hcp crystals on the basis of the self-consistent field method (SCFM) taking into account of molecular motion. The theoretical results are applied to calculate numerically for hcp-N2. Some numerical results are compared with experiments and other calculations.