TECH

Miraculous computer materials already withstand computer heat

Multiferroicos
The promising multiferroic materials can already operate at the typical temperature inside a computer.This means that these components, advertised as "miracle materials" for computing, can begin to be developed toward the industrial scale.Multiferroics are materials that simultaneously present magnetic and electrical orders, which means that their magnetism can be controlled electrically, or their electrical conduction can be controlled magnetically, bringing new degrees of freedom to the design of digital circuits, both for the storage of data, as for processing - you should be more accustomed to them by the name of their structure, known as perovskite.Tian Shang and his colleagues at the Paul Scherer Institute in Switzerland synthesized a copper-iron perovskite that kept all its properties at up to 100 degrees Celsius - it is worth remembering that just two years ago the first multiferroic material was obtained at room temperature, around 30º C."This temperature is now over 60 degrees Celsius higher than in the past. Although more research is still needed, we are now closer to a possible use of these materials in computers," said teacher Marisa Medarde, coordinator of the team.

Multiferroico magnetoelectricos
This relatively new class of multi-beam magnetoelectric materials includes several mixtures of chemical elements with one thing in common: they simultaneously contain small magnets and a combination of positive and negative electric charges, the so-called electric dipoles.Electric dipoles can usually be influenced by the application of an electric field and small magnets by the application of a magnetic field. For a multiferroic material, one electric field is sufficient for both.In practice, electric fields are much easier and cheaper to produce and consume much less electricity. This is what makes multi-beam magnetoelectrics so interesting from an economic point of view.


Bibliography:Design of magnetic spirals in layered perovskites: Extending the stability range far beyond room temperature