Photonic devices with photoferroelectric structures

14 Apr 2024
Job Information

Organisation/Company

L’Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 CNRS – Université de Strasbourg,

Research Field

Physics
Technology » Materials technology

Researcher Profile

Recognised Researcher (R2)
Leading Researcher (R4)
First Stage Researcher (R1)
Established Researcher (R3)

Country

France

Application Deadline

8 May 2024 - 22:00 (UTC)

Type of Contract

Temporary

Job Status

Full-time

Offer Starting Date

2 Sep 2024

Is the job funded through the EU Research Framework Programme?

Not funded by an EU programme

Is the Job related to staff position within a Research Infrastructure?

No

Offer Description

Imagine your computer starting instantly and performing logic operations at the speed of light without overheating. Although this sounds as a science fiction today, it can be become reality soon, by replacing electrical computing with optical computing. To make this happen the photonic processors must be realized. The building blocks for such processors are photonic devices capable to modulate signal light beam. In the same way as electrical transistor revolutionized electronics, the discovery of photonic transistor should open a whole new era of photonic devices for superior data processing possibilities. Your PhD work will help to advance the area of optical computing by developing new type of photonic devices uniting experimental studies in the area of ferroelectricity (FE) and photovoltaics (PV). At certain conditions the FE material under light can show a complex response including the both light-induced charge generation and depolarization processes. Combining unique electronic properties of the 2D materials [1] with such FE compounds can prone to electro-optical and even all-optical atomic scale devices control. While the electrical control has already been demonstrated in such heterostructures for the both bulk [2] and surface [3] configurations the optical one is much less studied. The purely optical approach, however, represents a promising research direction as recently reported [4,5]. At certain conditions the FE material under light can show both light-induced charge generation and relaxation processes. Such interplay can lead to both transient and remanent effects due to intrinsic electric field. The task of PhD student will be to prepare 2D structures and heterostructures over the multifunctional ferroelectric substrates using nanofabrication facilities in a clean room environment of the Institute. The electrical, optical (in some cases magnetic) measurements will be then performed by the candidate according to the objectives. The candidate should have an experience in research lab work, good skills in spoken and written French or English and sufficient knowledge of material science. Experience in a clean room environment is an advantage.

Literature
[1] K. S. Novoselov, et al. Science, 353, 9439 (2016).    
[2] G. –X. Zheng, et al., Phys. Rev. Lett. 105, 166602 (2010).    
[3] V. Iurchuk, H. Majjad, F. Chevrier, D. Kundys, B. Leconte, B. Doudin, B. Kundys, Appl. Phys. Lett. 107, 182901 (2015).    
[4] https://arxiv.org/abs/2203.06515
[5] https://arxiv.org/abs/2401.01679

 

Funding category: Contrat doctoral
Ministère de l'éducation
PHD title: Doctorat de Physique
PHD Country: France

Requirements
Specific Requirements

Ability to work in a clean room environment. Good scholar marks are required in material science or related solid state physics dicipline as well as good English or French level. Experimental experience in optics would be an advatage.

Additional Information
Work Location(s)

Number of offers available

1

Company/Institute

L’Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 CNRS – Université de Strasbourg,

Country

France

City

Strasbourg

Geofield

Where to apply

Website

https://www.abg.asso.fr/fr/candidatOffres/show/id_offre/122860

Contact

Website

http://www.ipcms.unistra.fr/?page_id=1716

STATUS: EXPIRED