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Europium Phosphate, Europium Arsenate, and Europium Antimonate - Correlation of Crystal Structure and Physical Properties

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Golbs,  Sylvia
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Cardoso-Gil,  Raul
Raul Cardoso, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Ormeci,  Alim
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Schwarz,  Ulrich
Ulrich Schwarz, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Schnelle,  Walter
Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Grin,  Yuri
Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Schmidt,  Marcus
Marcus Schmidt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Golbs, S., Schappacher, F. M., Poettgen, R., Cardoso-Gil, R., Ormeci, A., Schwarz, U., et al. (2013). Europium Phosphate, Europium Arsenate, and Europium Antimonate - Correlation of Crystal Structure and Physical Properties. Zeitschrift für anorganische und allgemeine Chemie, 639(12-13), 2139-2148. doi:10.1002/zaac.201300285.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0017-B014-1
Abstract
Crystals of EuPO4, EuAsO4, and EuSbO4 were grown by chemical vapor transport. These compounds exhibit complex anions and they crystallize in different structures. The modelling of the chemical transport experiment was carried out with the program TRAGMIN. By means of different spectroscopic methods structural and electronic influences of the complex anion on the electronic state of the europium ion were investigated. These results were in good agreement with calculations of the electronic structure. The magnetic susceptibility shows the typical van Vleck paramagnetism of trivalent europium. The specific heat capacity was determined in the range from 1.9 to 320 K. The conformity of these results was checked on the basis of specific heat determination through differential scanning calorimetry (DSC) in the temperature range 235 to 473 K. The optical bandgaps, received from UV/Vis spectroscopy are in good agreement with calculated ones.