60 citations · 215 across the 9 of their papers we have counts for
6 papers · 1 filter
Probing the Penetration Depth of Topological Surface States by Magnetic Impurity Scattering in V-doped SbTe
Yidi Wang, Zeyu Ma, Pengcheng Chen +11
Topological insulators host Dirac surface states (SS) protected by time-reversal symmetry. Inter-surface hybridization can gap the SS and give rise to the quantum spin Hall effect…
Probing Image Potential States on Topological Semimetal Antimony Surface
Jian-Feng Ge, Haimei Zhang, Yang He +4
A point charge near the surface of a topological insulator (TI) with broken time-reversal symmetry is predicted to generate an image magnetic charge in addition to an image electri…
Unexpected Zero Bias Conductance Peak on the Topological Semimetal Sb(111) with a Broken Bilayer
Yau-Chuen Yam, Shiang Fang, Pengcheng Chen +9
The long-sought Majorana fermion is expected to manifest in a topological-superconductor heterostructure as a zero bias conductance peak (ZBCP). As one promising platform for such…
High- ferromagnetism in a doped Mott insulator: the case of hydrogenated epitaxial graphene on SiC(0001)
Pengcheng Chen, Yuanchang Li, Wenhui Duan
We show that the ferromagnetism with high Curie temperature () can be achieved in the electron doped hydrogenated epitaxial graphene on some certain SiC substrates thr…
Stable two-dimensional dumbbell stanene: a quantum spin Hall insulator
Peizhe Tang, Pengcheng Chen, Wendong Cao +7
We predict from first-principles calculations a novel structure of stanene with dumbbell units (DB), and show that it is a two-dimensional topological insulator with inverted band…
Dirac Fermion in Strongly-Bound Graphene Systems
Yuanchang Li, Pengcheng Chen, Gang Zhou +5
It is highly desirable to integrate graphene into existing semiconductor technology, where the combined system is thermodynamically stable yet maintain a Dirac cone at the Fermi le…