Chromium Chloride Pyrazine – Nano Material for Quantum Electronics


Chromium-Chloride-Pyrazine is of interest in future superconductors, catalysts, batteries, fuel cells and electronics

An international team led by Kasper Steen Pedersen, Assistant Professor at the Technical University of Denmark (DTU) has synthesised a novel nanomaterial with electrical and magnetic properties. These properties are making it suitable for future quantum computers and other applications in electronics.

Chromium-Chloride-Pyrazine (chemical formula CrCl2(pyrazine)2) is a layered material, which is a precursor for a so-called 2D material. In principle, a 2D material has a thickness of just a single molecule. This often leads to properties different from those of the same material in a normal 3D version. In a 3D material, electrons are able to take any direction while in a 2D material they are restricted to moving horizontally as long as the wavelength of the electron is longer than the thickness of the 2D layer.

Organic/inorganic hybrid material

Graphene is the most well-known 2D material. It consists of carbon atoms in a lattice structure, which yields its strength. Since the first synthesis of graphene, hundreds of other 2D materials have been synthesized which may be candidates for quantum electronics applications.

However, the novel material is based on a different concept. Just like Graphene, all other materials are inorganic while Chromium-Chloride-Pyrazine is an organic/inorganic hybrid material.

The material marks a new type of chemistry, in which researchers are able to replace various building blocks in the material thereby modifying its physical and chemical properties. This can not be done in graphene. For example, you can’t choose to replace half the carbon atoms in graphene with another kind of atoms.

Besides the electrical properties, magnetic properties in Chromium-Chloride-Pyrazine can also be designed which is relevant in relation to spintronics. Apart, from quantum computing, Chromium-Chloride-Pyrazine is of interest in future superconductors, catalysts, batteries, fuel cells, and electronics. However, even if Chromium-Chloride-Pyrazine, for some reason prove unfit for the various possible applications, the new principles behind its synthesis will still be relevant. This is the door to a new world of more advanced 2D materials opening up.