Berlin 2008 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 32: Correlated Electrons: Poster Session
TT 32.17: Poster
Donnerstag, 28. Februar 2008, 14:00–18:00, Poster B
New correlated materials with phosphorus: A challenge for the crystal grower — •Anton Jesche, Cornelius Krellner, Nubia Caroca-Canales, Arpana Prasad, and Christoph Geibel — Max Planck Institute for Chemical Physics of Solids, Dresden, Germany
The f-shell of Ce, Eu, Yb, and U can adopt different configurations, magnetic or non-magnetic, depending on the chemical surrounding. In the past decades, a large variety of systems were intensively studied due to the occurrence of many unusual features, like e.g. the formation of heavy-fermions, of unconventional superconductivity, and of unconventional metallic and magnetic states. Most of these systems contain Al, Si, Ge, In, and Sn beside the f-element and transition metals (T). On the way to look for new correlated materials, we have started the synthesis of several P-containing compounds. The crystal growth is rather challenging because of the high reactivity of elemental P. We succeeded in preparing CeTPO, CeT2P2, and EuNi2P2 using a Sn-flux method. For the CeTPO, CeT2P2 series the chemical structures are already known; however, no physical properties were reported. In this contribution we will present the details of the synthesis and discuss the physical properties determined by means of magnetic susceptibility, specific heat, and electrical resistivity measurements.