Physicists developed a method using hydrogen cations to control electronic properties in magnetic Weyl semimetals, enabling ...

"The work started as we were thinking about ways to probe the Berry curvature of electrons in solids," Riccardo Comin, senior author of the paper, told Phys.org. "We originally devised an ...

The study aims to reveal new quantum phenomena, such as the Quantum Anomalous Hall (QAH) effect, which enables an insulator to conduct current without energy loss via 2D superconductivity, surface ...

"In these materials, due to the combination of parity (P) and time-reversal (T) symmetries, the Berry curvature (the imaginary component of quantum geometric tensor) vanishes, and it is shown that ...