Overview
- 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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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.
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Keywords
Table of contents (9 chapters)
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Front Matter
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Spinel-Structured AB2X4 Chalcogenide Compounds
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Front Matter
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Ordered-Vacancy AB2X4 Chalcogenide Compounds
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Front Matter
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AB2X4 Chalcogenide Compounds with Other Types of Structures
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Front Matter
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Back Matter
Editors and Affiliations
Bibliographic Information
Book Title: Pressure-Induced Phase Transitions in AB2X4 Chalcogenide Compounds
Editors: Francisco Javier Manjon, Ion Tiginyanu, Veaceslav Ursaki
Series Title: Springer Series in Materials Science
DOI: https://doi.org/10.1007/978-3-642-40367-5
Publisher: Springer Berlin, Heidelberg
eBook Packages: Chemistry and Materials Science, Chemistry and Material Science (R0)
Copyright Information: Springer-Verlag Berlin Heidelberg 2014
Hardcover ISBN: 978-3-642-40366-8Published: 03 February 2014
Softcover ISBN: 978-3-662-52189-2Published: 23 August 2016
eBook ISBN: 978-3-642-40367-5Published: 21 January 2014
Series ISSN: 0933-033X
Series E-ISSN: 2196-2812
Edition Number: 1
Number of Pages: XIII, 243
Number of Illustrations: 88 b/w illustrations, 33 illustrations in colour
Topics: Optical and Electronic Materials, Semiconductors, Microwaves, RF and Optical Engineering, Applied and Technical Physics