The core of solid-state physics is band theory, which categorizes the crystal world into two types: “insulators” and “conductors.” To fill the gap for semiconductor applications at room temperature, the concept of “semiconductors” was added. This knowledge is now taught in secondary schools, indicating that band theory has established its foundation.^_^. Of course, band theory … Read more
Since the discovery of graphene, a series of interesting physical properties have been closely related to its K point Dirac states. Subsequently, many two-dimensional Dirac semimetals have been identified both theoretically and experimentally. However, in most two-dimensional materials, Dirac states open different energy gaps under spin-orbit coupling (SOC) , which greatly weakens the related physical … Read more
The core of solid-state physics is band theory, which classifies the crystalline world into two categories: “insulators” and “conductors”. Then, to fill in the gaps for semiconductor applications at room temperature, the concept of “semiconductors” was added. This is now common knowledge taught in high schools, marking the establishment of band theory.^_^. Of course, band … Read more