Experimental realisation of tunable ferroelectric/superconductor [Formula: see text] 1D photonic crystals in the whole visible spectrum.

Emergent technologies that make use of novel materials and quantum properties of light states are at the forefront in the race for the physical implementation, encoding and transmission of information. Photonic crystals (PCs) enter this paradigm with optical materials that allow the control of light propagation and can be used for optical communication, and photonics and electronics integration, making use of materials ranging from semiconductors, to metals, metamaterials, and topological insulators, to mention but a few. Here, we show how designer superconductor materials integrated into PCs fabrication allow for an extraordinary reduction of electromagnetic waves damping, making possible their optimal propagation and tuning through the structure, below critical superconductor temperature.

Observation of unexpected uniaxial magnetic anisotropy in LaSrMnO films by a BaTiO overlayer in an artificial multiferroic bilayer.

We studied in detail the in-plane magnetic properties of heterostructures based on a ferroelectric BaTiO overlayer deposited on a ferromagnetic LaSrMnO film grown epitaxially on pseudocubic (001)-oriented SrTiO, (LaAlO)(SrTaAlO) and LaAlO substrates. In this configuration, the combination of both functional perovskites constitutes an artificial multiferroic system with potential applications in spintronic devices based on the magnetoelectric effect. LaSrMnO single layers and BaTiO/LaSrMnO bilayers using the pulsed-laser deposition technique.