Category archives: DIPC Advanced materials

3D topological photonic crystals whith Chern vectors at will

3D topological photonic crystals whith Chern vectors at will

DIPC Advanced materials

By DIPC

Some materials have special universal properties protected against perturbations. Such properties are theoretically described by topology, a branch of mathematics concerned with the properties of geometrical objects that are unchanged by continuous deformations. So-called topological insulators are electronic materials that have a bulk band gap like an ordinary insulator but have conducting states on their […]

Discovering topological materials from symmetry

Discovering topological materials from symmetry

DIPC Advanced materialsMaterials

By DIPC

Topological materials have special universal properties, which are protected against perturbations. The name comes from the fact that such properties are theoretically described by topology, a branch of mathematics concerned with the properties of geometrical objects that are unchanged by continuous deformations. Topological materials behave like an ordinary insulator in the bulk but have conducting […]

Electronic bonding network and critical temperature in hydrogen-based superconductors

Electronic bonding network and critical temperature in hydrogen-based superconductors

DIPC Advanced materials

By DIPC

The capacity of creating an electronic bonding network between localized units would be key to enhance the critical temperature in hydrogen-based superconductors, according to recent results. The field of hydrogen-based superconductivity has progressed enormously since 1968, when Ashcroft first proposed that pressurized hydrogen may become a high-temperature superconductor due to the high energy of its […]

How the screened Coulomb interaction induces superconductivity in twisted bilayer graphene

How the screened Coulomb interaction induces superconductivity in twisted bilayer graphene

DIPC Advanced materialsMaterials

By DIPC

Twistology could be the study of unexpected changes or developments in stories or situations, from coups d’état to the fatherhood of Darth Vader. In condensed matter physics there is something similar, although the preferred name is twistronics (from twist and electronics). It is understood as the study of how the angle (the twist) between layers […]

A platform for building tunable terahertz detectors at liquid nitrogen temperatures

A platform for building tunable terahertz detectors at liquid nitrogen temperatures

DIPC Advanced materialsMaterials

By DIPC

Terahertz (THz) radiation is all around us. For example, this page emits blackbody radiation mainly in the THz region (broadly from 0.3 THz to 30 THz). Because terahertz radiation begins at a wavelength of around one millimeter and proceeds into shorter wavelengths, it is sometimes known as the submillimeter band, and its radiation as submillimeter […]

The classical nonlinear mechanics of wrinkles in 2D materials

The classical nonlinear mechanics of wrinkles in 2D materials

DIPC Advanced materialsMaterials

By DIPC

Two-dimensional (2D) materials are extraordinary for two main reasons. One is the set of mechanical properties that makes those materials a versatile playground where multiple modelling objects are possible, from the thinnest membranes with minuscule bending rigidity to very stiff plates, all with very reproducible parameters. The other reason is that both the electronic and […]

New physics: the anomalous high-temperature superconductivity of yttrium hydride

New physics: the anomalous high-temperature superconductivity of yttrium hydride

DIPC Advanced materials

By DIPC

The standard explanation of superconductivity goes more or less like this. Electrical resistance is due to collisions of the electrons (whether treated as particles or waves) with impurities, imperfections, and especially the lattice vibrations of the metal crystal. The lattice vibrations of the solid will decrease as the temperature falls, because the entropy, which represents […]