Well, the Peking team has used bismuth in both the semiconductor and high-dielectric oxide. It's a post-transitional metal, which also applies to lead, gallium, indium and tin, among others.

Astronomers have revealed new evidence that not just one, but four tiny planets are circling around Barnard's Star, the second-nearest star system to Earth. The four planets, each only about 20 to ...

Researchers have experimentally demonstrated a quantum tornado. Electrons form vortices in the momentum space of the quantum semi-metal tantalum arsenide. A team of researchers from Würzburg has ...

Copyright 2025 The Associated Press. All Rights Reserved. This image released by Disney shows contestant Slater Nalley, left, embracing his English teacher Mrs. Davis ...