590 / 2019-03-28 19:54:56

A New Route to Room Temperature Ternary Superconductors via Electron-doped Binary Hydrides under High Pressure

Crystal structure prediction; High superconducting temperature; High pressure

全体主题 > High Pressure Physics and Materials Science

In this work, we propose a feasible way to design room-temperature superconductors by providing extra electrons for binary hydrides via metal doping to create more atomic hydrogen environment and thus high superconductivity. Our structure searches also identify several new ternary compounds with excellent superconductivity at extreme condition, confirming the reliability of our proposed method. Remarkably, a new clathrate structure is here predicted to become a potential room-temperature superconductor with an estimated superconducting transition temperature as high as 480 K at 250 GPa. The present results provide a viable strategy towards compounds with improved superconducting properties under ultra-high pressure.