# Phase-Coherent Transport in Two-Dimensional Tellurium Flakes

## TL;DR

This paper studies quantum transport in tellurium flakes, showing high mobility and unique quantum effects at low temperatures.

## Contribution

The study demonstrates enhanced Fabry-Pérot interference and Zeeman splitting in thin tellurium flakes.

## Key findings

- Hole mobility reaches 1000 cm²/V·s in 17 nm thick Te flakes at 30 K.
- Fabry-Pérot interference becomes prominent at cryogenic temperatures in higher carrier density.
- Zeeman splitting of conductance peaks is observed under magnetic fields.

## Abstract

Elemental tellurium
(Te) is a compelling van der Waals material
due to its interesting chiral crystal structure and predicted topological
properties. Here, we report the fabrication and comprehensive quantum
transport study of devices based on Te flakes with varying thicknesses.
We demonstrate a hole mobility reaching up to 1000 cm2/V·s
in a 17 nm thick flake at 30 K. At deep cryogenic temperatures (<50mK),
the transport characteristics transition from Coulomb blockade in
the low carrier density regime to pronounced Fabry-Pérot (F–P)
interference at higher densities. Notably, the visibility of these
F–P oscillations is significantly enhanced in the thinner flake
device. The application of a magnetic field reveals a clear Zeeman
splitting of the conductance peaks. The rich variety of quantum transport
phenomena (Coulomb blockade, F–P interference, Zeeman splitting)
observed underscores the high quality of our thin Te flakes and establishes
them as a promising material for exploring physics and device concepts,
such as topological superconductivity and low-power spintronic applications.