US researchers recently developed a new type of electroplated metal composite material that can achieve superconductivity at relatively high temperatures. It has a variety of advantages and is expected to meet the requirements of next-generation computers for circuit board materials. Boulder, University of Colorado, USA Researchers at branch schools and other institutions published a report in the new issue of the American Journal of Applied Physics that the new material is to use electroplating technology to sandwich an ultra-thin layer between two layers of gold. The thickness of the hair is only one thousandth of the diameter of the hair.
Germanium is a rare metal, it is hard, has a high melting point, and is commonly used in the manufacture of jet engines. The team found that this composite made of yttrium and gold can be used at a temperature of 6 Kelvin (minus 267.15 degrees Celsius). Superconductivity.
Superconductivity is the phenomenon in which the resistance of some materials completely disappears under certain conditions. If superconductivity can be applied to the computer, the current loss can be reduced, thereby creating a higher-speed computer. However, the known superconductivity phenomenon occurs in At extremely low temperatures, the scientific community has been looking for materials that can achieve superconductivity at relatively high temperatures.
The researchers said that this new material achieves superconducting temperatures that are relatively high, and that it has high melting point, good mechanical properties, and no toxicity. In comparison, the mechanical properties of some superconducting materials based on mercury or lead And welding properties are poor, not conducive to use in computers. Therefore, this new material may be the best superconducting material that can be used to manufacture computer circuit boards.
