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20 papers
Nanostructured clathrates and clathrate-based nanocomposites
R. Christian, M. Ikeda, G. Lientschnig +13
Intermetallic clathrates are candidate materials for thermoelectric applications above room temperature. Here we explore whether their intrinsically low lattice thermal conductivit…
Physical properties of CeIrSi with trillium-lattice frustrated magnetism
F. Kneidinger, I. Zeiringer, A. Siderenko +4
Magnetic (), transport () and heat capacity ()properties of CeIrSi are investigated to elucidate the effect of geometric frustration in this compound with trillium type…
Suppression of vacancies boosts thermoelectric performance in type-I clathrates
Xinlin Yan, Matthias Ikeda, Long Zhang +5
Intermetallic type-I clathrates continue to attract attention as promising thermoelectric materials. Here we present structural and thermoelectric properties of single crystalline…
Clathrate formation in the systems Sr-Cu-Ge and {Ba,Sr}-Cu-Ge
I. Zeiringer, A. Grytsiv, F. Kneidinger +5
In the ternary system Sr-Cu-Ge, a clathrate type-I phase, Sr8Cu5.3Ge40.7 (a = 1.06311(3), exists close to the Zintl limit in a small temperature interval. Sr8Cu5.3Ge40.7 decomposes…
New bulk p-type skutterudites DD0.7Fe2.7Co1.3Sb12-xXx (X = Ge, Sn) reaching ZT>1.3
G. Rogl, A. Grytsiv, P. Heinrich +7
The best p-type skutterudites so far are didymium filled, Fe/Co substituted, Sb-based skutterudites. Substitution at the Sb-sites influences the electronic structure, deforms the S…
Unusual Behaviour of (Np,Pu)B2C
Tomasz Klimczuk, Pascal Boulet, Jean-Christophe Griveau +5
Two transuranium metal boron carbides, NpB2C and PuB2C have been synthesized by argon arc melting. The crystal structures of the {Np,Pu}B2C compounds were determined from single cr…