Berkeley Labs physicists in the United States detected for the first time the formation of polar vortices in a ferroelectric materials. This observation profit by The phenomenon is the electrical equivalent of magnetic vortices, known as Skyrmions, which has laid foundations for a new kind of digital memory more dense and with a lower energy consumption than the current. The magnetic eddies are quite understood but the possibility of electric polarization vortices was only provided for in theory for about 10 years.
If more precise measurements confirm those rotating topologies are same “electric skyrmions” can also be used in collecting and processing of data in extremely compact bits in addition to open new frontiers in physics especially of ferro-materials.
“It has long been believed that topological structures were restricted to Rotary magnetic systems. Is not possible in Ferroelectric thin films materials, but by creating artificial supernets, we control the various energies of a ferro-electric materials to generate a competition which led to these new States of matter and arrangements of polarization,” said professor Ramesh Ramamoorthy.
Ramesh is an expert in the area, with his team having already shown that magnetism can be turned on and off and that this control of magnetism can reduce the power consumption of electronic devices by up to 10 times.
Despite the questions and doubts that the phenomenon comes up, the team argues that electrical vortexes they shouldn’t be any surprise.
“I believe that, if you search for scientific community, many will shake head in disbelief about such structures, but it turns out that there is indeed a tendency for the Vortex States formed in nature, even in these polar systems. When looking more broadly the structures in Vortex can occur in huge scales-galaxies passing by meteorological systems, to sets of tens of atoms, as in our case “defended Lane Martin member of the team.
The electric vortices were observed in structures built by the team formed by layers of lead titanate and strontium titanate.
They create supernets within the crystalline material, controlling “cells” that measured only 0.4 nm. This control was the imposition of elastic energies, electrostatic and gradients, which created “competition” that led to the emergence of the polar vortexes.