Abstract
Structural studies of Jahn–JT) systems involving transition metal ions often require using complementary spectroscopic techniques in order to complete an adequate characterization. x-ray absorption and diffraction though standard techniques for structural studies in concentrated materials are not well suited to investigate diluted or structurally subtle JT compounds. In this work we analyze the usefulness of optical spectroscopy to investigate structural properties of JT systems involving both diluted and concentrated compounds that are difficult to extract from diffraction experiments. Moreover, in some cases, the usage of different experimental techniques is crucial to obtain reliable conclusions. Some Mn3+, Ni3+ and Co3+ systems with perovskite structure will be presented and analyzed as an illustration.
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Acknowledgments
I wish to thank Dr. Fernando Aguado and Dr. Marta N. Sanz-Ortiz for collaboration. Some material presented here belongs to the Jahn–Teller chapters of their respective doctoral thesis. Financial support from the Spanish Ministerio de Ciencia e Innovación (Project No MAT2008-06873-C02-01) and MALTA INGENIO-CONSOLIDER 2010 (Ref. CDS2007-0045) is acknowledged.
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Rodriguez, F. (2010). Jahn–Teller Systems at High Pressure. In: Boldyreva, E., Dera, P. (eds) High-Pressure Crystallography. NATO Science for Peace and Security Series B: Physics and Biophysics. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-9258-8_19
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DOI: https://doi.org/10.1007/978-90-481-9258-8_19
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