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Quantum sensors based on spin defects in hexagonal boron nitride

Research project selected under the 2023 call for proposals

Principal Investigator : Cédric ROBERT

Involved Teams :

  • LPCNO / Quantum Optoelectronics group
  • CEMES / Materials and devices for Electronics and Magnetism
  • CEMES / Atom Tech & Process Platform

Type of project : Collaborative Project

Date (start/end) : 2023 – 2026

The Q2D-SENS project aims at developping a 2D quantum sensor based on recently discovered spin defects (boron vacancies) in atomically thin layers of hexagonal boron nitride.

Quantum sensing technologies powered by solid-state spin defects have already shown a huge potential for covering the growing need for high-precision sensor, for both basic science and industrial applications. However, state-of-the-art quantum sensing methods based on spin defects hosted in three-dimensional (3D) materials such as NV centers in diamond are facing several obstacles including (i) a limited spatial resolution resulting from the dim proximity that can be achieved between the quantum sensor and the target sample, and (ii) the impossibility to engineer ultrathin, flexible quantum sensors that could be easily transferred onto the samples to be probed. The goal of this project is to overcome these limitations through the design of a flexible quantum sensor based on an atomically-thin two-dimensional (2D) material. To this end, we will exploit the magneto-optical properties of recently discovered spin defects in 2D hexagonal boron nitride (hBN).