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Updated: Sep 3, 2025

Synthesis of In37P20O2CR51 Clusters and Their Conversion to InP Quantum Dots
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Interatomic Potential for InP.

Dariusz Chrobak1, Anna Majtyka-Piłat1, Grzegorz Ziółkowski2

  • 1Institute of Materials Engenering, Faculty of Science and Technology, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzow, Poland.

Materials (Basel, Switzerland)
|July 27, 2022
PubMed
Summary

A new analytical bond-order potential for indium phosphide (InP) accurately models its elastic properties and pressure-induced phase transitions. This potential also describes defect formation in the InP crystal structure.

Keywords:
indium phosphideinteratomic potentialmolecular dynamics simulationsnative point defectsphase transformation

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Computational Materials Science

Background:

  • Accurate modeling of indium phosphide (InP) requires interatomic potentials capturing elastic properties and phase transitions.
  • Classical potentials must describe the reversible B3↔B1 phase transition under pressure.

Purpose of the Study:

  • Develop a new parametrization of the analytical bond-order potential for InP.
  • Ensure the potential accurately reproduces fundamental physical properties and phase transition behaviors.

Main Methods:

  • Developed a new analytical bond-order potential parametrization for InP.
  • Validated the potential against first-principles calculations for B3 and B1 phases.

Main Results:

  • The new potential accurately reproduces InP's lattice parameters, cohesive energy, and stiffness coefficients for both B3 and B1 phases.
  • The model successfully describes the reversible B3↔B1 pressure-induced phase transition.
  • The potential also models the formation of native point defects in the B3 phase of InP.

Conclusions:

  • The developed analytical bond-order potential offers a reliable tool for simulating InP structural phenomena.
  • This potential advances the understanding of InP's mechanical behavior and defect dynamics.