Exotic Electronic State Found in 2D Material: A Promising New Frontier for Quantum Control

2D topological material exhibits exotic electronic effects

Researchers at Julich have demonstrated an exotic electronic state called Fermi Arcs for the first in a 2D materials. The appearance of Fermi Arcs in this material is a surprising link between new quantum materials and the potential applications of these materials in spintronics or quantum computing. Nature Communications has recently published the results.

The newly detected Fermi arcs represent special–arc-like–deviations from the so-called Fermi surface. In condensed-matter physics, the Fermi surface describes the electron momentum distribution in a metal. These Fermi surfaces are normally closed surfaces. Fermi surfaces are extremely rare, and are often associated with exotic properties such as superconductivity and negative magnetoresistance.

The technology challenge of today is to control physical properties \”on demand\” in materials. These experiments have mostly been limited to bulk materials, and they are a key challenge in condensed-matter science. The findings, with their groundbreaking paradigm, present a promising frontier for quantum control in low-dimensional system by external means – the external magnetic field. This offers unprecedented capabilities for 2D materials and artificial intelligence.

Source:
https://phys.org/news/2022-09-exotic-electronic-effect-2d-topological.html