February 2015Structural phase transitions (reversible or irreversible) can be proved via temperature dependent x-ray diffraction. Two systems of Anton Paar enables the research group of Prof Janek to study powder as well as thin film samples under almost inert conditions. In addition, a special setup makes electrochemically induced structural changes accessible.The available diffractometers by PANalytical and respective heating chambers are shown in figure A) and B).At approximately 125 °C, Cu2Se undergoes a reversible phase transition of monoclinic to cubic structure. This is illustrated in figure C) by a reduced number of Bragg peaks at higher temperatures.(Picture submitted by Christian Schneider.)https://www.uni-giessen.de/en/faculties/f08/departments/physchem/janek/gallerypotm/pom2015/PoM0215/viewhttps://www.uni-giessen.de/@@site-logo/logo.png
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February 2015
Structural phase transitions (reversible or irreversible) can be proved via temperature dependent x-ray diffraction. Two systems of Anton Paar enables the research group of Prof Janek to study powder as well as thin film samples under almost inert conditions. In addition, a special setup makes electrochemically induced structural changes accessible.The available diffractometers by PANalytical and respective heating chambers are shown in figure A) and B).At approximately 125 °C, Cu2Se undergoes a reversible phase transition of monoclinic to cubic structure. This is illustrated in figure C) by a reduced number of Bragg peaks at higher temperatures.(Picture submitted by Christian Schneider.)
