Pressure-driven structural evolution of amorphous InN

Durandurdu M.

Journal of Non-Crystalline Solids, cilt.650, 2025 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 650
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.jnoncrysol.2024.123378
  • Dergi Adı: Journal of Non-Crystalline Solids
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: Amorphous, Crystallization, Indium nitride, Polyamorphism
  • Abdullah Gül Üniversitesi Adresli: Evet

Özet

Through constant-pressure ab initio simulations, we have uncovered high-pressure phase transformations in amorphous indium nitride for the first time. Our results reveal a distinct two-step progression under compression. Initially, a polyamorphic transition occurs, where the low-density amorphous (LDA) phase transforms into a high-density amorphous (HDA) phase. This HDA structure remains stable in some pressure range and then crystallization initiates, leading to a rocksalt configuration. Upon decompression, the HDA phase reverts to an amorphous network with a slightly higher density and coordination number than the initial LDA state.