The Physics of Structural Phase Transitions

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Focusing on the interplay between crystal structure and ordering processes, this text explores the mechanisms behind structural phase transitions in crystalline solids. It begins with thermodynamic principles and delves into order variables, collective motion, and lattice instability, highlighting the role of soft phonons. Theoretical concepts like Landau theory and pseudospins are covered, alongside practical applications in experimental studies using various techniques such as x-ray diffraction and neutron scattering. The book is structured into theoretical and experimental sections, catering to readers with a background in condensed-matter physics.