GIOVANNINI M.

Amorphous films of tantalum oxide (Ta2O5) are widely applied to build highly reflective mirrors used in interferometric gravitational wave detectors, such as the Laser Interferometer Gravitational Wave Observatory. Despite a large number of studies, the structural properties of amorphous Ta2O5 on the local scale still deserve several further...

Phase equilibria in the isothermal section (600 °C) of the ytterbium-copper-zinc ternary system were determined over the entire concentration range by powder X-ray diffraction and scanning electron microscopy with energy-dispersive X-ray spectroscopy. Extended substitutional Cu/Zn homogeneity regions are mainly formed from the Yb-Zn and Yb-Cu...

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The magnetic, thermal, and transport properties of the noncentrosymmetric compound Eu2Pd2Sn are reexamined with the inclusion of detailed measurements. In its paramagnetic phase, the outstanding feature of this compound is the formation of Eu2+ dimers, which allows us to understand the deviation of the magnetic susceptibility χ(T ) from the...

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The new intermetallic compound Eu2Pd2Sn has been investigated. A single crystal was selected from the alloy and was analyzed by single-crystal X-ray diffraction, revealing that this compound possesses the noncentrosymmetric Ca2Pd2Ge structure type being, so far, the only rare-earth-based representative. Bonding analysis, performed on the basis...

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Rare-earth magnetism in the intermetallic materials YbCu4.2Ni0.8 and Yb0.8Lu0.2Cu4Ni was studied by XRD, magnetization, electrical resistivity and heat capacity measurements. The results from the sample YbCu4.2Ni0.8 include a small amount of the monoclinic superstructure of the cubic AuBe5. Therefore, the formation of a cubic AuBe5 solid...

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