Category archives: Materials

The critical role of single atoms on the electronic properties of a metal organic network

The critical role of single atoms on the electronic properties of a metal organic network

ChemistryDIPC InterfacesMaterials

By DIPC

Organic-based materials have gained rising interest as active components in electronics, energy conversion and catalytic systems. However, the discrete nature of the molecular constituents of these systems implies a reduced electron conductance, lowering the device efficiency. In order to increase the electron delocalization through an improved structural order, which favors orbital overlap and consequently the […]

Black metallic hydrogen due to proton quantum fluctuations

Black metallic hydrogen due to proton quantum fluctuations

Condensed matterMaterialsQuantum physics

By DIPC

The most famous conjecture in condensed-matter physics was proposed in 1935, when Hillard Huntington and Eugene Wigner calculated the properties of hydrogen squeezed to high density and pressure. They predicted that under pressures above 25 gigapascals (GPa), hydrogen would undergo a density-driven transition from an insulating, molecular solid to a conducting, atomic solid. In their […]

Measuring electron-phonon interaction in multidimensional materials with helium atom scattering

Measuring electron-phonon interaction in multidimensional materials with helium atom scattering

Condensed matterMaterialsQuantum physics

By DIPC

The discovery of superconductivity in 2D films dates back over 80 years. Initially, these were 2D metallic films deposited on inert substrates, but in recent times more exotic 2D systems have exhibited superconducting properties, such as the surface of topological insulators or twisted bilayer graphene. Superconductivity is caused by the interactions between atomic vibrations (phonons) […]

An accurate and predictive model for the infrared dielectric function of a van der Waals material

An accurate and predictive model for the infrared dielectric function of a van der Waals material

Condensed matterMaterials

By DIPC

Future information and communication technologies will rely on the manipulation of not only electrons but also of light at the nanometer-scale. Squeezing light to such a small size has been a major goal in nanophotonics for many years. Particularly strong light squeezing can be achieved with polaritons, quasiparticles resulting from the strong coupling of photons […]

Chirality can be used to control the sign of a maximal Chern number

Chirality can be used to control the sign of a maximal Chern number

ChemistryCondensed matterMaterialsQuantum physics

By DIPC

The magnitude of many of the exotic phenomena predicted for topological semimetals is directly proportional to something called the Chern number. Given the importance of the Chern number magnitude for these phenomena, it is just natural to wonder whether there is an upper limit for it and whether there are real materials in which this […]

How to detect the daughter atom of a neutrinoless double beta decay

How to detect the daughter atom of a neutrinoless double beta decay

ChemistryMaterialsParticle physics

By DIPC

A new fluorescent bicolour indicator, an organic molecule, could help detect the daughter atom of a neutrinoless double beta decay. If this is achieved, there would be an explanation to the matter-anti matter asymmetry in the universe. Experiments performed in 1909 by Geiger and Marsden, also called Rutherford gold foil experiment because Rutherford was their […]

Neutron sciences as an essential tool to develop ‘materials for a better life’

Neutron sciences as an essential tool to develop ‘materials for a better life’

Materials

By BCMaterials

Until 1932, atoms were considered to consist in positive charges, called protons, located within the atomic nucleus, where the majority of the mass of the atom is concentrated, and negative charges, identified as electrons, surrounding the nucleus to make it electrically neutral. However, in 1932 James Chadwick discovered the neutron, an uncharged particle located at […]

Plasmonic nanocrystals-cellulose hybrid

Plasmonic nanocrystals-cellulose hybrid

ChemistryCondensed matterMaterials

By DIPC

When we consider the variety of possible wonder applications of plasmonic nanoparticles we usually forget a key aspect: how these laboratory results can be transformed into something really usable in everyday life. For that to occur some not-that-simple problems must be resolved first. For example, plasmonic nanoparticles exhibit excellent light-harvesting properties in the visible spectral […]