Magnetotransport properties of Coх(MgF2)100-x oxygen-free nanocomposites

Magnetotransport Properties of Cd3As2 Nanostructures.

Three-dimensional (3D) topological Dirac semimetal has a linear energy dispersion in 3D momentum space, and it can be viewed as an analogue of graphene. Extensive efforts have been devoted to the understanding of bulk materials, but yet it remains a challenge to explore the intriguing physics in low-dimensional Dirac semimetals. Here, we report on the synthesis of Cd3As2 nanowires and nanobelts...

Perovskite oxide superlattices: Magnetotransport and magnetic properties.

We have fabricated perovskite superlattices consisting of two ferromagnetic metallic oxides: La0.67Ca0.33MnO3 ~LCMO! and SrRuO3 ~SRO!. We have investigated the magnetotransport and magnetic properties of a series of samples, in which the layer thickness of LCMO is fixed and that of SRO varied from 0 to 20 unit cells. The magnetoresistance ratio in a superlattice can be increased by a factor of ...

Synthesis and high temperature thermoelectric properties of Yb0.25Co4Sb12-(Ag2Te)x(Sb2Te3)1−x nanocomposites

Nanocomposites are becoming a new paradigm in thermoelectric study: by incorporating nanophase(s) into a bulk matrix, a nanocomposite often exhibits unusual thermoelectric properties beyond its constituent phases. To date most nanophases are binary, while reports on ternary nanoinclusions are scarce. In this work, we conducted an exploratory study of introducing ternary (Ag2Te)x(Sb2Te3)1-x incl...

Magnetotransport properties of Y 1 x Pr x Ba 2 Cu 3 O 7 d single crystals

Magnetotransport measurements of Y1 xPrxBa2Cu3O7 d (x 1⁄4 0, 0.13, 0.2, 0.32, and 0.42) single crystals reveal two regimes in the pseudogap region for the xP 0:20 samples, with a crossover at a temperature TcrðxÞ. For Tc < T < Tcr, there is a vortex-like response in magnetoresistivity. For T > Tcr, the results are consistent with the picture in which the origin of the pseudogap is the nearly an...

Dielectric Properties of Graphite Nanocomposites