Electronic and Thermo-Dynamical Properties of Rare Earth RE₂X₃ (X=O, S) Compounds: A Chemical Bond Theory

Introduction

Rare earth sesqui-chalcogenides (RE₂X₃) have garnered significant attention due to their advanced applications in electroluminescence, high-power lasers, and solid oxide fuel cells. This study explores the electronic, mechanical, and thermodynamic properties of RE₂X₃ (X=O, S) using the chemical bond theory of solids. Researchers have calculated key parameters like homopolar gaps, ionic gaps, and average energy gaps, aligning closely with the Penn and Phillips models.

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Key Findings and Computational Insights

• Energy Gaps and Bonding Properties:
  • The homopolar gap (Eh), ionic gap (Ec), and average energy gap (Ep) were calculated and compared with theoretical models.
  • Results demonstrated strong agreement with established Penn and Phillips predictions.
• Bulk Modulus and Heat of Formation:
  • Using bond ionicity values, the study estimated bulk modulus and heat of formation for RE₂O₃ compounds.
  • The computed values align well with previous theoretical results, reinforcing the validity of the approach.

Significance in Material Science

Rare earth sesqui-oxides (RE₂O₃) are widely used in:
Optical components for high-power lasers
Solid oxide fuel cell electrolytes
High-K gate dielectrics for semiconductor technology

The study’s insights into their electronic and mechanical behavior enhance their potential for future innovations in material science and quantum electronics.

External Reference: The Role of Rare Earth Oxides in Advanced Technologies

According to the American Physical Society (APS), rare earth compounds play a crucial role in modern electronic and energy storage systems. Their unique electronic properties make them essential for next-generation materials research.

Further Reading and Research Access

Explore the full research article here: https://doi.org/10.29328/journal.ijpra.1001083.

For additional related studies, browse our physics journal database: International Journal of Physics Research and Applications.

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