Abstract Recently, a research team led by Dr. Irina Grigorieva of the University of Manchester published a study on NatureCommunications, revealing how to use graphene to make primary magnetic moments and control its switching.
Recently, a research team led by Dr. Irina Grigorieva of the University of Manchester published a study at Nature Communications, revealing how to use graphene to make primary magnetic moments and control its switching. 
Magnetic materials are closely related to all aspects of modern society, and they are used in electronic tools that contain miniature magnetic components, such as hard disks, memory chips, and sensors. Each micromagnet has information of '0' and '1' for information storage in the magnetization directions "North" and "South". In the electronics field, this is called electron spin technology.
Although electron spin has many advantages, it has its shortcomings, that is, it cannot support active devices. In active devices, the north-south direction conversion is similar to the north-south direction conversion in transistors. Today, Dr. Irina Grigorieva's team has successfully solved this problem.
It is well known that graphene is composed of carbon atoms, and those atoms that cause "microscopic pores", also called "vacancies", can be removed by certain technical means. Scientists at the University of Manchester have discovered that electrons condense into clouds around these holes, and these cloud-like electrons carry a unit of magnetism and a unit of rotation like a microscopic magnet.
Dr. Grigorieva and her team found that these magnetic clouds can be controlled to dissipate and recondense together.
She said the discovery allowed us to develop new transistor-like devices that use graphene magnetic and non-magnetic states to convert information to write information. These magnetic and non-magnetic states can be read either by conventional methods of passing current or by means of spin current. This kind of transistor can be said to be the "Holy Grail" in electron spin technology.
Dr. Rahul Nair said that in the past we could only achieve the magnetization of the magnet from north to south, and now we can switch the magnetic control.
Andre Geim, the research collaborator and winner of the Nobel Prize, added that the surprising characteristics of graphene have not yet been known, but today's research can be said to be blue and blue. Wait and see, after a few years, the switchable magnetic technology will bring a bigger technological leap. (Compiled from 'Controlling Magnetic Clouds in Graphene' Translation: Wang Xian)
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