Scientists from Massachusetts Institute .
The new opening is published in the magazine NatureCan lead to the creation of new quantum computers and energy efficient technology.
What scientists discovered
Superconductor – Non -resistant conductive material, means losing energy zero. Usually they repel from the field (Meissner effect), when the water repel oil. However, the MIT group was found in a Graphene Rhomboedric-a special form of graphite with a staircase of a person who placed 4-5 layers of graphene-a supercondraction, it acts as a magnet.
The researchers haveolated microscopy scale of the diamond graphene (the size of a micrometed part) and cooling them up to 273 ° C. Under such conditions, the material shows the existing resistance properties of the superconductor.
It is amazing that when the outside magnetic field changes, the scales switched between the two superconducting states, like a magnet to change the polarity. This behavior is absent in other superconducting substances observed in six samples. The critical magnetic field reaches 1.4 Tesla – higher than other graphene superconductors.
The chirus superconducting is symmetrical time and its electronic pairs (traders) rotate in one direction – clear or opposite clockwise, created from the inside.
You can imagine the two electrons in a pair of clockwise or resist, like a magnet up or down, he explains Tonghan Khan, co -founder of the study.
Why is it important
Supervisors and magnets are considered incompatible according to the tradition: the magnetic field destroys superconducting, tearing electronic pairs.
In this material, the electrons in pairs of abnormal activities: they seem to turn around in one direction, like a small magnet, and move along a special path that scientists call the valley. This makes Grafen a very interesting candidate to create a special type of superconducting – topical. They can support large farmers -these are the particles that will help create the most stable and more stable and stable quantum computers.
This is the first observation of a superconducting active like a magnet with such direct evidence, Mr. Long Ju, Associate Professor Mit.
This finding can lead to the creation of stable quantum bits (blocks), MRI magnets improved and electronic devices saving energy, helping to reduce 20-30 %of energy consumption.
The simplicity of the system – the carbon atoms in graphene – make the discovery unique.
Lyan Fu, Professor Mit, said it was really noticeable as such a strange superconducting superconducting from such simple ingredients!
Scientists plan to research how to increase the temperature of superconductors and create expandable devices.