 Research and Teaching Interests
We perform research in the field of inorganic solid state/materials chemistry, and our program aims at the exploration of fundamental crystal structure-bonding-property relationships in a large variety of metallic and semimetallic materials. Current efforts are centred round the synthesis and structural characterisation of complex intermetallic narrow gap semiconductors and novel main group hydrides with polymeric anions. Both types of materials have interesting electrical and thermal trans port properties and could find application in e.g. thermoelectric devices.
For materials synthesis a number of techniques are employed, covering low-temperature flux methods, conventional (high-temperature) ceramic methods, and the application of extreme temperatures and pressures. An important aspect of our research is the intimate combination of experimental work with advanced electronic structure calculations. Electronic structure theory helps to uncover essential structure-property relationships and directs further experiments towards a controlled design of materials.
Representative publications:
"Complex Frameworks and Narrow Bandgaps," A.S. Mikhaylushkin, J. Nylén and U. Häussermann , Chem. Eur. J. 11, 4912- 4920 (2005).
"SrAlSiH - A polyanionic semiconductor hydride ," T. Björling, D. Noréus, K. Jansson, M. Andersson, E. Leonova, M. Edén, U. Hålenius, U. Häussermann, Angew. Chem. Int Ed 44, 7269-7273 (2005).
"The Structure of a -Zn4Sb3: Ordering of the Phonon-Glass Thermoelectric Material ß -Zn4Sb3," J. Nylén, M. Andersson, S. Lidin and U. Häussermann , J. Am. Chem. Soc. 126, 16304 (2004).
"Phase Stability in the Systems AeAl2-xMgx (Ae = Ca, Sr, Ba): Electron Concentration and Size Controlled Variations Based on the Laves Phase Structural Theme," S. Amerioun, T. Yokosawa, S. Lidin and U. Häussermann , Inorg. Chem 43, 4751-4760 (2004).
"High-Pressure Structural Trends of Group 15 Elements: Simple Packed Structures versus Complex Host-Guest Arrangements," U. Häussermann , Chem. Eur. J. 9, 1471-1478 (2003).
"FeGa3 and RuGa3 - Semiconducting Intermetallic Compounds," U. Häussermann, M. Boström, P. Viklund, Ö. Rapp and T. Björnängen, J. Solid State Chem 165, 94-99 (2002).
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