Quantum point contacts are narrow, one-dimensional constrictions usually patterned in a
two-dimensional electron system, for example by applying voltages to local gates. The linear …

A quantum point contact (QPC) is a basic nanometre-scale electronic device: a short and
narrow transport channel between two electron reservoirs. In clean channels, electron …

One-dimensional ballistic transport is demonstrated for a high-mobility InAs nanowire
device. Unlike conventional quantum point contacts (QPCs) created in a two-dimensional …

In-plane hole g factors measured in quantum point contacts based on p-type
heterostructures strongly depend on the orientation of the magnetic field with respect to the …

The properties of conductance in one-dimensional (1D) quantum wires are statistically
investigated using an array of 256 lithographically identical split gates, fabricated on a …

Ninety-eight one-dimensional channels defined using split gates fabricated on a
GaAs/AlGaAs heterostructure are measured during one cooldown at 1.4 K. The devices are …

We study 95 split gates of different size on a single chip using a multiplexing technique.
Each split gate defines a one-dimensional channel on a modulation-doped GaAs/AlGaAs …

We present a study on the lifting of degeneracy of the size-quantized energy levels in an
electrostatically defined quantum point contact in bilayer graphene by the application of in …

We experimentally investigate the effect of resonant microwave absorption on the magneto-
conductance of tunable Co/Pd point contacts. At the interface a non-equilibrium spin …

The origin of the anomalous transport feature appearing at a conductance G≈ 0.7×(2e 2/h)
in quasi-1D ballistic devices-the so-called 0.7 anomaly-represents a long standing puzzle …