Superconducting diode effect in the Weyl semimetal -MoTe that has a surface modulated by Al nanoparticles.

Breaking both inversion and time reversal symmetry could lead to nonreciprocal current transport in a superconductor, where current is dissipationless in one direction and dissipative in the opposite direction, which is called the superconducting diode effect (SDE). We studied SDE in the type-II Weyl semimetal -MoTe that is covered with Al nanoparticles. Asymmetric - characteristics have been measured under a magnetic field.

Enhanced Ferroelectric and Piezoelectric Properties in Graphene-Electroded Pb(Zr,Ti)O Thin Films.

While using ferroelectric polarization to tune the functional properties of 2D materials has been extensively studied recently, the effects of 2D materials on the ferroelectricity and piezoelectricity of ferroelectrics are much less explored. In this work, we report markedly enhanced ferroelectric and piezoelectric properties of graphene/Pb(ZrTi)O/SrRuO (GR/PZT/SRO) capacitors. Compared with conventional metal-electroded ferroelectric capacitors, the GR/PZT/SRO capacitors exhibit more abrupt polarization switching, larger switchable polarization, lower leakage current, and smaller coercive voltage.