According to a report by the Physicist Organization Network on July 2 (Beijing time), researchers from Washington State University and the Carnegie Institution of the United States conducted a new study and successfully converted a common non-metallic solvent, carbon disulfide, into Superconductors provide new ideas for how to give superconductivity to non-traditional materials. Related papers have been published in the United States "Journal of the National Academy of Sciences."
“This major discovery will cause a great deal of attention in many research groups such as the physics community, the chemical industry, and the materials science community,†said Liu Zhongzhi, a professor of chemistry at Washington State University. Advances in the superconducting field have a variety of potential innovative applications, including powerful electromagnets, vehicle propulsion systems, energy storage, and more efficient power transmission.
Liu Zhongzhi’s research team placed carbon disulfide under high pressure and low temperature conditions to observe how it began to behave as a metal, exhibiting properties such as magnetic properties and high energy density, and the superhardness obtained because the molecular weight composition resembled that of a three-dimensional structure in diamonds. .
Normally, non-metallic molecules are too far apart from each other (3 times the distance between metal molecules) and electrical energy cannot cross between them. But the researchers compressed carbon disulfide into a compact, space-constrained diamond pressure chamber and compressed it to 50,000 atmospheres, which is about the same depth as 600 miles (965.6 kilometers) deep inside the Earth. At the same time, they also cooled carbon disulfide to 6.5 Kelvin (minus 266.65 degrees Celsius).
This pressure and temperature condition not only allows carbon disulfide molecules to bind together, but also recombines them into a lattice structure in which the natural vibrations of the molecules can help the electrons move smoothly, and carbon disulfide becomes non-existent. Resistance superconductors.
Liu Zhongzhi said that their study provided new insights into how non-traditional materials can achieve superconductivity. These non-traditional materials are generally composed of atoms with lower atomic weights, and applying higher frequencies allows atoms to vibrate, thereby increasing the probability of the material being transformed into a superconductor at higher temperatures.
Liu Zhongzhi admitted that electronic materials cannot be cooled to near absolute zero or under extreme pressure, but he believes that this work may point the way to creating similar material properties under more general conditions, just as scientists are at lower temperatures and Under pressure, synthetic diamonds paved the way. “By understanding the basic principles, this study will provide tools for people to develop superconductors more intelligently,†said Liu Zhongzhi. (Reporter Chen Dan)
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