Chemists opened the material that becomes a superconductor at a temperature of -23 ° C, which is a new record.
Superconductivity involves the complete absence of electrical resistance in the conductive material when it is cooling below the critical temperature. The purpose of all researchers in this direction is to achieve such properties under normal conditions (above 0 ° C). Such a discovery causes a sharp jump in the development of a wide spectrum
Mikhail Eremesev with colleagues from the laboratory of the Institute of Chemistry Max Planck claims claim that the superconductivity of Lanthan hydride (LAH10) was observed at 250 k or -23 ° C. This indicator is higher than the temperature in the North Pole. However, in order for the material to begin to show such properties, it should be under pressure at least 170 GPa. It is comparable to the conditions in the center of the earth’s core.
Physicists were surprised by the nature of a superconductible material that does not have a classic crystal lattice of positive ions.
During the experiments, the researchers were able to confirm the drop in resistance with a decrease in temperature and decrease in the critical temperature when replacing hydrogen in the sample on deuterium. The team is now working on the latest mandatory proof of the absence of a magnetic field. The problem lies in the fact that the material has a diameter of only a few millimeters and is located inside a diamond capsule under high pressure. Without third evidence, the discovery cannot be recognized officially.
Nevertheless, work opens up new opportunities for further research. According to scientists, computer models show that yttrium super-hydrides can demonstrate superconductivity at a temperature of more than 27 ° C. Although this also requires huge pressure.
Scientists explore new materials not only for energy transfer, but also its accumulation. Recently, Honda has developed a prototype