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Pressure-Induced Phase Transitions in AB2X4 Chalcogenide Compounds

  • Book
  • © 2014

Overview

Editors:
  1. Francisco Javier Manjon

    1. Instituto de Diseño para, Polytechnic University of Valencia, Valencia, Spain

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  2. Ion Tiginyanu

    1. Academy of Sciences of Moldova, Chisinau, Moldova

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    You can also search for this editor in PubMed   Google Scholar

  3. Veaceslav Ursaki

    1. Institute of Applied Physics, Chisinau, Moldova

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  • Presents hydrostatic pressure-induced material modifications in AB2X4 chalcogenide compounds
  • Describes the properties of important AmBnXp materials
  • Presents cubic-spinel and wurtzite-type structures, defective tetragonal structures
  • Provides data on band gap, lattice parameter, interatomic distance, vibrational mode
  • Covers the influence of compound ionicity on pressure dependence of direct bandgap energy
  • Shows theoretical studies of phase transitions in several ordered-vacancy compounds
  • Includes supplementary material: sn.pub/extras

Part of the book series: Springer Series in Materials Science (SSMATERIALS, volume 189)

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Table of contents (9 chapters)

  1. Front Matter

    Pages i-xiii
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  2. Relation of \(\mathrm{A}^{\mathrm{II}}\mathrm{B}^{\mathrm{III}}_{2}\mathrm{X}^{\mathrm{VI}}_{4}\) Compounds to Other Materials, Their Properties and Applications (Instead of Introduction)

    • V. V. Ursaki, I. M. Tiginyanu
    Pages 1-50

  3. Spinel-Structured AB2X4 Chalcogenide Compounds

    1. Front Matter

      Pages 51-51
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    2. AB\(_{2}\)O\(_{4}\) Compounds at High Pressures

      • Daniel Errandonea
      Pages 53-73

    3. \(\text {AB}_{2}\mathrm{{S}}_{4}\) and \(\text {AB}_{2}\mathrm{{Se}}_{4 }\) Compounds at High Pressures

      • David Santamaria-Perez, Javier Ruiz-Fuertes
      Pages 75-102

    4. Theoretical Ab Initio Calculations in Spinels at High Pressures

      • P. Rodríguez-Hernández, A. Muñoz
      Pages 103-129

  4. Ordered-Vacancy AB2X4 Chalcogenide Compounds

    1. Front Matter

      Pages 131-131
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    2. \(\mathrm {AB}_{2}\text {S}_{4}\) Ordered-Vacancy Compounds at High Pressures

      • Francisco Javier Manjón, Rosario Isabel Vilaplana
      Pages 133-161

    3. \(\mathrm{AB}_{2} \text {Se}_{4}\) Ordered-Vacancy Compounds at High Pressures

      • Óscar Gomis, Francisco Javier Manjón
      Pages 163-184

    4. Theoretical Ab Initio Calculations in Ordered-Vacancy Compounds at High Pressures

      • A. Muñoz, M. Fuentes-Cabrera
      Pages 185-210

  5. AB2X4 Chalcogenide Compounds with Other Types of Structures

    1. Front Matter

      Pages 211-211
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    2. \(\mathrm{{AB}_{2} \mathrm{X}_{4}}\) Compounds with Other Types of Structures at High Pressures

      • V. V. Ursaki, I. M. Tiginyanu
      Pages 213-235

    3. Epilogue

      • Francisco Javier Manjón, Ion Tiginyanu, Veaceslav Ursaki
      Pages 237-238

  6. Back Matter

    Pages 239-243
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Keywords

About this book

This book on pressure-induced phase transitions in AB2X4 chalcogenide compounds deals with one important AmBnXp material. The interest in these materials is caused by their properties. The results are discussed for three main groups of structural families: cubic-spinel structures, defective tetragonal structures, and other structures like layered and wurtzite-type modifications. A systematic analysis of the behavior of cubic (spinel), tetragonal (defect chalcopyrites and stannites) and other crystal modifications of AB2X4 compounds under hydrostatic pressure is performed. The behavior of AIIAl2S4, AIIGa2S4, AIIAl2Se4 and AIIGa2Se4 compounds with defective tetragonal structures, compounds with layered and wurtzite structures under hydrostatic pressure and the pressure dependence of the band gap, lattice parameters, interatomic distances, vibrational modes and pressure-induced phase transitions is discussed. Many of these compounds, except oxide spinels, undergo a pressure-induced phase transition towards the rocksalt-type structure. The phase transition is preceded by disorder in the cation sublattice. The dependence of the transition pressure to the rocksalt-type structure as a function of the compound ionicity and the size criterion is analyzed.  At high pressures, all ordered-vacancy compounds are found to exhibit a band anticrossing between several conduction bands that leads to a strong decrease of its pressure coefficient and consequently to a strong non-linear pressure dependence of the direct bandgap energy. Theoretical studies of phase transitions in several ordered-vacancy compounds reveal that the existence of ordered vacancies alter the cation-anion bond distances and their compressibilities. The book is written for students, Ph D. students and specialists in materials science, phase transitions and new materials.

Editors and Affiliations

  • Instituto de Diseño para, Polytechnic University of Valencia, Valencia, Spain

    Francisco Javier Manjon

  • Academy of Sciences of Moldova, Chisinau, Moldova

    Ion Tiginyanu

  • Institute of Applied Physics, Chisinau, Moldova

    Veaceslav Ursaki

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