Recent progresses of quantum confinement in graphene quantum dots

Abstract Graphene quantum dots (GQDs) not only have potential applications on spin qubit, but also serve as essential platforms to study the fundamental properties of Dirac fermions, such Klein tunneling and Berry phase. By now, confinement in GQDs still attract much attention condensed matter physics. In this article, we review experimental progresses mainly by using scanning microscopy (STM) spectroscopy (STS). Here, are divided into GQDs, bound-state edge-terminated according their different strength. Based realization quasi-bound states external perpendicular magnetic field is utilized a manipulation approach trigger control novel tuning phase electron-electron (e-e) interaction. The tip-induced edge-free can an intuitive mean explore broken symmetry at nanoscale single-electron accuracy, which expected be used studying physical two-dimensional materials. Moreover, high-spin ground successfully introduced designing synthesizing triangulene zigzag nanographenes.