By Josh Perry, Editor
Researchers at the Indian Institute of Technology (IIT) in Hyderabad and the University of Hyderabad demonstrated a method for making graphene nanoribbons magnetic by controlling the electric field and temperature of the material, according to a report from DowntoEarth.org.in.
Scientists in India discovered a method for introducing magnetism to graphene.
The research team observed various magnetic phases and phase transitions, while defining a means for identifying the position of magnetic phases with an eye towards the creation of graphene chips for future electronics.
“Just imagine a situation where the heat generated via the chipset could be harnessed to perform computations,” the article explained. “What if the temperature and electric field can be utilized to induce magnetism in graphene nanoribbons?”
Thermal management is the key to building next-gen electronics, as engineers try to find methods for harnessing the excess heat and not allowing it to destroy the system. Graphene nanoribbons could be used to recover the waste heat, reduce the voltage requirement, and process information using spintronics.
“At a particular value of electric field and temperature, paramagnetism was seen and further tuning to different values led to achievement of ferromagnetism and anti-ferromagnetism,” the article continued. “It was observed that if one value (say electric field) is kept constant, the other value (temperature) can be increased or decreased to obtain different magnetic phases and vice versa.”
Read more at https://www.downtoearth.org.in/news/science-technology/indian-scientists-make-magnetic-graphene-for-nextgen-digital-devices-63526.