Topological states of quantum matter have been investigated intensively in recent years in
materials science and condensed matter physics. The field developed explosively largely …

Nanoscale magnetic imaging can provide microscopic information about length scales,
inhomogeneity and interactions of materials systems. As such, it is a powerful tool to probe …

A two-dimensional topological insulator (2DTI) is guaranteed to have a helical one-
dimensional edge mode,,,,,,,,,, in which spin is locked to momentum, producing the quantum …

According to quantum mechanics, a harmonic oscillator can never be completely at rest.
Even in the ground state, its position will always have fluctuations, called the zero-point …

We have engineered electron-hole bilayers of inverted InAs/GaSb quantum wells, using
dilute silicon impurity doping to suppress residual bulk conductance. We have observed …

The hallmark of a topologically insulating state of matter in two dimensions protected by time-
reversal symmetry is the existence of chiral edge modes propagating along the perimeter of …

A two-dimensional (2D) topological insulator exhibits the quantum spin Hall (QSH) effect, in
which topologically protected conducting channels exist at the sample edges. Experimental …

Topological superconductivity is an exotic state of matter that supports Majorana zero-
modes, which have been predicted to occur in the surface states of three-dimensional …

Electronic correlations give rise to fascinating macroscopic phenomena such as
superconductivity, magnetism, and topological phases of matter. Although these …

We report on the observation of a helical Luttinger liquid in the edge of an InAs/GaSb
quantum spin Hall insulator, which shows characteristic suppression of conductance at low …