333 citations · 522 across the 19 of their papers we have counts for
19 papers
Elastic higher-order topological insulators with quantization of the quadrupole moments
Zhen Wang, Qi Wei, Heng-Yi Xu +1
We demonstrate that HOTIs with the quantization of the quadrupole moments can be realized in the two-dimensional elastic phononic crystals (PnCs). Both one-dimensional (1D) topolog…
Topological phases and Majorana states in screened interacting quantum wires
Hengyi Xu, Ye Xiong, Jun Wang
We study theoretically the effects of long-range and on-site Coulomb interactions on the topological phases and transport properties of spin-orbit-coupled quasi-one-dimensional qua…
Observation of quantum states without a semiclassical equivalence bound by a magnetic field gradient
B. Schüler, M. Cerchez, Hengyi Xu +4
Resonant transmission through electronic quantum states that exist at the zero points of a magnetic field gradient inside a ballistic quantum wire is reported. Since the semiclassi…
Andreev reflection tuned by magnetic barriers in superconductor contacted graphene
Hengyi Xu, T. Henizel
The Andreev reflection of the normal state-superconductor junction both in monolayer and bilayer graphene with a single magnetic barrier is investigated by means of the Green's fun…
Impurity and edge roughness scattering in armchair graphene nanoribbons: Boltzmann approach
Hengyi Xu, Thomas Heinzel
The conductivity of armchair graphene nanoribbons in the presence of short-range impurities and edge roughness is studied theoretically using the Boltzmann transport equation for q…
Geometric magnetoconductance dips by edge roughness in graphene nanoribbons
Hengyi Xu, T. Heinzel, I. V. Zozoulenko
The magnetoconductance of graphene nanoribbons with rough zigzag and armchair edges is studied by numerical simulations. nanoribbons with sufficiently small bulk disorder show a pr…