MOSCOW, 10 Oct – RIA Novosti. Scientists from Russia, Germany and the Netherlands found a way to significantly increase the speed of computers with the help of terahertz radiation, which can switch the cells to their memory thousands of times faster than a magnetic field, according to a paper published in the journal Nature Photonics.
“We took an important step on the way to terahertz electronics: showed qualitatively new approach to the control of magnetization by using short pulses of terahertz radiation. As far as we know, our work is the first example of this application of T-rays,” said Anatoly Zvezdin Moscow Institute of physics and technology in Dolgoprudnyy, quoted in the press service of MIPT.
As the scientists explain, the terahertz radiation is among the most promising areas of research in the field of optics, microelectronics and other high-tech fields. In the future, waves of this type can be adapted for high-speed transmission of information, monitoring of living cells in real time and many other purposes.
Zvezdin and a number of domestic and foreign scientists under the leadership of Sebastian Baierle (Sebastian Baierl) suggested the use of terahertz radiation to create light counterpart HDDs in which the magnetic memory cell will switch the magnetic field produced by the heads of the drive, as beams of T-rays.
They tested this idea by trying to change the magnetic properties of orthoferrite thulium – thulium compounds, iron, and oxygen having ferromagnetic properties. These properties, as the scientists explain, are set by the spin of the atoms in the microcrystals inside the plates of this material, however, as the experiment showed, it can be done with the help of terahertz pulses.
The experiments showed that the beams of T-rays change the magnetic properties and iron ions and ions of thulium, and they are almost 10 times stronger than the external magnetic field. Thanks to the Russian and foreign physicists have discovered a very quick and effective method of magnetization reversal of a material which is suitable for the creation of superfast memory.
According to the authors, orthoferrite thulium is not the only material that can “switch” T-rays. It is quite useful for demonstration, but the proposed method of control of magnetization can be used in many other magnetic materials, more interesting from a practical point of view.
As noted Zvezdin, these experiments are a continuation of the research that the Soviet scientists were in the past at the University of Moscow. “In the USSR orthoferrite researched group at MSU, and we had the priority in this area. In some sense, our work is the continuation of the research,” concludes physicist.