Frank Ceballos / University of Kansas
MIT researchers reveal electrons who form crystalline structures in a material only one meter thick.
Is an innovative – and unexpected – discovery in the field of Materials Science.
Physicists from the Massachusetts Institute of Technology (MIT) reveal electrons in an ultra -thin material that can form crystalline structures.
The phenomenon was observed in a material with just a few MILLONESIES OF METRO thick: o pentalayer rhombohedral graphene – five layers of graphene Atomic arranged in a specific way, a material discovered only three years ago by this team led by Long Ju.
It focused on the behavior of electrons in devices partially made of this five-layer graphene.
These electrons, in these devices, They are solid, form crystalline structures – When they are subject to variable electrical voltages and extreme temperatures, similar to those of outer space.
In this study, it continues, the appearance of two new electronic states; It is an extension of a previous study, which showed that the electrons could divide into fractional parts.
Personalized filters were developed that provided better isolation, allowing investigators to cool their devices at much lower temperatures than in previous experiences.
The results suggest that the pentalayer rhombohedral graphene (and other similar materials, probably) may have a range of unexpected behaviors that may have vast implications for quantum physics and the science of materials.
Researchers also conducted experiments with two variants Material: One composed of five layers of graphene and one composed of four layers. This comparison indicates that this behavior can extend to a wider family of materials.
“Hall effect whole quantum anomalous”
In addition to the aforementioned crystalline structures of electrons, MIT physicists have discovered a “Hall effect whole quantum anomalous” in a wide range of electron densities.
The fractional quantum anommal hall effect, which had been discovered in previous studies, occurs under strong magnetic fields.
But this new phenomenon occurs without the need for any magnetic field.
Researchers believe that this effect can be compared to a Electrons “Solid”analogous to ice formation, coexisting with the “liquid” state of the fractional quantum hall effect.
The MIT team believes this study can lead to advances in quantum computing and in other advanced technologies.
“We have found a gold mine, and each excavation is revealing something new”or professor In Jud.
