Job offer

European Commission; France; Sur place; EUR 40 000 - 60 000; Plein temps

Résumé du poste

Une opportunité unique pour un doctorant dans un groupe de recherche en nanophotonique sur la Côte d'Azur. Ici, vous pourrez explorer des phénomènes émergents comme l'électricité ferroelectrique glissante et le photonic neuromorphique, tout en contribuant à un projet financé par l'Union Européenne.

Qualifications

• Motivé(e) et fortement intéressé(e) par les matériaux 2D.
• Compétences en micro-spectroscopie cryogénique appréciées.

Responsabilités

• Détecter optiquement et contrôler les états ferroelectriques dans les matériaux 2D.
• Imager les domaines ferroelectriques en utilisant des techniques de micro-spectroscopie avancées.

Formation

Master en physique ou domaine connexe

Description du poste

Organisation/Company: CNRS

Department: Centre de recherche sur l'hétéroepitaxie et ses applications

Research Field: Physics > Condensed matter properties, Solid state physics, Surface physics

Researcher Profile: First Stage Researcher (R1)

Country: France

Application Deadline: 25 Jun 2025 - 23:59 (UTC)

Type of Contract: Temporary

Job Status: Full-time

Hours Per Week: 35

Offer Starting Date: 1 Oct 2025

Funding: Not funded by a EU programme

Research Infrastructure Staff Position: No

Offer Description

The 2D+ Research Group at CRHEA, located on the French Riviera near Nice, France, is seeking a highly motivated and talented PhD candidate to join our cutting-edge research in nanophotonics with 2D materials. We offer a unique opportunity to explore emerging phenomena such as sliding ferroelectricity, ultra-low-threshold nonlinear photonics, and exciton engineering. The project is part of the European-funded 2DFERROPLEX consortium, bringing together leading experts in the field.

Research Focus

By simply sliding one 2D crystal atop another, the electronic properties of the resulting heterostructure can change dramatically. Remarkably, a large-bandgap insulator can become ferroelectric, solely due to this relative twist—without any additional modification. This phenomenon gives rise to out-of-plane ferroelectric domains.

The goal of this PhD is to optically detect, track, and ultimately control the ferroelectric state in such materials. Key objectives include imaging ferroelectric domains in a new class of 2D ferroelectrics using state-of-the-art cryogenic micro-spectroscopy techniques. This work involves understanding the influence of the dielectric environment on interlayer excitons and unraveling the mechanisms governing domain dynamics, such as flipping and domain wall propagation—central to the emerging physics of sliding ferroelectricity.

The ultimate ambition is to develop a strategy to optically switch these domains, laying the groundwork for a novel optoelectronic device. Such a system could serve as a non-linear optical activation function in photonic neuromorphic computing, where no fully compatible component currently exists.