Jin An

Surface states scattering from a step defect in the topological insulator Bi2Te3

We study theoretically, using a quantum-mechanical approach, the general scattering problem of a straight step defect on the surface of the topological insulator

Induced chiral Dirac fermions in graphene by a periodically modulated magnetic field

{\mathrm{Bi}}_{2}{\mathrm{Te}}_{3}

Interface edge states and quantum Hall effect in graphene under a modulated magnetic field

with a strong warping effect. At high energy where the warping effect is large, an electron incident on a step defect running along

Softened spin-wave dispersion and sublattice magnetization at finite temperature for a three-dimensional anisotropic Heisenberg antiferromagnet

\ensuremath{\Gamma}\ensuremath{-}M

Quantized four-terminal resistances in a ferromagnetic graphene p-n junction

may exhibit perfect transmission whereas an electron incident on a defect running along

Manipulating fully spin-polarized edge currents in graphene ribbon

\ensuremath{\Gamma}\ensuremath{-}K

Properties of a weakly interacting electronic system under a staggered magnetic field

has a finite probability of being reflected and may even exhibit resonant total reflection. The transmission in the latter case is also sensitive to whether there is particle-hole symmetry in the system. Although backscattering is prohibited by time-reversal symmetry, an electron incident nearly normally on a defect running along

Coexistence of f-Wave Superconductivity, Charge Order, and Spin Antiferromagnetism around Nonmagnetic Impurities in Na0:33CoO2 1:3H2O

\ensuremath{\Gamma}\ensuremath{-}K

Modulations of orders around a magnetic impurity in a d -wave superconductor

has a finite reflection. This is interpreted as the consequence of the existence of decaying modes localized at the defect, acting as a magnetic barrier for the propagating modes. The predicted Friedel oscillations and the power-law decay behavior of the local density of states (LDOS) near the defect are in good agreement with recent scanning tunneling microscopy experiments on

Quasiparticle resonance states around a magnetic impurity in a two-dimensional f-wave superconductor (6 pages)

{\mathrm{Bi}}_{2}{\mathrm{Te}}_{3}