Publications (77) View all
-
Article: Transition-Metal Oxides for Thermoelectric Generation
[show abstract] [hide abstract]
ABSTRACT: The relevance of (bulk) transition-metal oxides for thermoelectric generation is discussed. A large power factor (i.e., a large electronic conductivity coexisting with a large Seebeck coefficient) seems more easily achievable in either hopping-type semiconductors or in highly correlated metallic systems such as layered cobaltites.Journal of Electronic Materials 04/2012; 38(7):1078-1082. · 1.47 Impact Factor -
Article: Synthesis and magnetic properties of rare earth ruthenates, Ln5Ru2O12 (Ln=Pr, Nd, Sm–Tb)
Journal of Solid State Chemistry. 05/2009; 182:1164-1170. -
Conference Proceeding: Thermopower of 2D-alkali cobaltites A x CoO 2 with A = Li, Na and K
[show abstract] [hide abstract]
ABSTRACT: This paper is devoted to a comparative study of the A<sub>x</sub>CoO<sub>2</sub> (A = Li, Na and K) systems. For x ~ 0.6, all the investigated alkali cobaltites exhibit a metallic-like behavior. Potassium cobaltites exhibit a T<sup>2</sup> dependence of the resistivity - suggesting a Fermi liquid character - and an enhanced Pauli type paramagnetism ascribed to electronic correlations. On the other hand lithium and sodium compounds show linear temperature dependence for the resistivity down to 4 K, a large thermopower above room temperature and a Curie-Weiss paramagnetism denoting larger electronic correlations. Physical properties of these cobaltites are discussed in details especially in the case of K-ordered and disordered K<sub>0.6</sub>CoO<sub>2</sub> phases.Thermoelectrics, 2007. ICT 2007. 26th International Conference on; 07/2007 -
Article: Structural and magnetic properties of a new type of ordered oxygen-deficient perovskite, KMnVO4
Chemistry of Materials 01/2007; 19:5563. · 7.29 Impact Factor -
Article: Description of Ba1+xNixRh1-xO3 with x=0.1170 (5) in superspace: modulated composite versus modulated-layer structure
Acta Crystallographica Section B-Structural Science. 01/2006; 62:197-204.
