About this Research Topic
Hybrid organic-inorganic compounds have been the subject of intense study, because their diverse structural and chemical variability presents opportunities for tuning their physical properties by chemical modification of organic and/or inorganic parts. This class of materials includes those with perovskite structure, many of which possess intriguing photovoltaic, optoelectronic or thermoelectric properties, and some which exhibit dielectricity, magnetism, ferroelectricity, ferroelasticity, multiferroicity, order-disorder phase transitions, and glassy dynamics. The low-energy vibrational properties of these materials can be strongly influenced by weak bonding (e.g. hydrogen) of molecules occupying the pores of their open structures and the coupled motions of coordination polyhedra that may comprise their frameworks. There remains a need for investigations aimed at understanding phonons and lattice dynamics that underlie many of their functional properties.
This Research Topic seeks to highlight studies elucidating the role of phonons in determining the functional properties of hybrid organic-inorganic materials and thereby advance understanding and their rational design for potential applications.
We welcome experimental or theoretical papers (original research, review and perspective articles) reporting on a broad range of investigative probes and physical properties that provide insight into the role of lattice vibrations and potential applications of these compounds. This includes, but is not limited to, spectroscopic studies (IR, Raman, inelastic neutron scattering, etc.), transport (electrical and thermal), thermodynamic (specific heat, thermal expansion, compressibility), magnetic, and mechanical properties, and theoretical/computational modeling.
Keywords: phonons, perovskites, hybrid materials, lattice dynamics
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