Postdoctoral Fellow

2 semanas atrás


Porto, Portugal Cnrs Tempo inteiro

Organisation/Company: CNRS

Department: Groupe de Recherche En Matériaux, Microélectronique, Acoustique, Nanotechnologies

Research Field: Physics

Researcher Profile: First Stage Researcher (R1)

Country: France

Application Deadline: 26 Nov 2024 - 23:59 (UTC)

Type of Contract: Temporary

Job Status: Full-time

Hours Per Week: 35

Offer Starting Date: 1 Jan 2025

Is the job funded through the EU Research Framework Programme? Horizon Europe - ERC

Is the Job related to staff position within a Research Infrastructure? No

Offer Description
The main mission of the postdoctoral fellow will be to study the field tunability of the thermal conductivity of ferroelectric materials. The measurement of thermal conductivity will be done by thermoreflectance as a function of temperature and electric field. These measurements will be carried out both with a commercial thermoreflectance device from Netzsch at GREMAN (Tours) and laboratory thermoreflectance benches developed at LOMA (Bordeaux).

Context: The development of thermal switches to control heat flows would significantly improve the efficiency of thermoelectric devices and solid refrigeration systems. As part of this project, the postdoctoral researcher will explore an original mechanism based on the interaction between phonons and spontaneous planar defects in ferroelectric materials to design thermal switches. Ferroelectric materials spontaneously exhibit regions of uniform polarization called domains, separated by planar defects called domain walls. The polarizations can be switched, and therefore the number of domains and their orientations controlled, by applying a voltage. Domain walls have complex deformation profiles and interact with phonons as defects do. Thus, as the density of domain walls increases, the number of collisions between domain walls and phonons increases, and the thermal conductivity is reduced. Controlling the density of domain walls via the application of an electric field would therefore ultimately make it possible to develop a compact and efficient thermal switch over a wide temperature range.

The project will focus on the study of heat transport at small scales of time and space in ferroelectric materials in the form of single crystals, thin films, and superlattices, which will be produced by other members of the team or obtained via already existing collaborations. The domain structure of these materials will be controlled in-operando by applied voltages. Thermal conductivity will be measured by thermoreflectance as a function of temperature and applied voltage.

The postdoctoral researcher will work in two laboratories: GREMAN (UMR CNRS 7347) in Tours and LOMA (UMR CNRS 5798) in Bordeaux. GREMAN has strong expertise in ferroelectric oxides (from their growth to their integration into devices, including their complete characterization) and in the measurement and modelling of thermal transport. LOMA activities aim to explore and characterize the properties of matter from a fundamental and applied point of view. The laboratory develops techniques based on the use of atomic force microscopes and femtosecond pulse lasers to characterize materials, and in particular energy transport at small scales.

This project is part of the ERC Starting Grant "DYNAMHEAT".

Candidate Requirements
The candidate must hold a doctorate in physics or materials science and have experience in thermoreflectance measurements and/or with pulsed lasers. Knowledge of ferroelectric materials would be appreciated. Good communication and writing skills, including English, are required.

#J-18808-Ljbffr



  • Porto, Porto, Portugal Cnrs Tempo inteiro

    Job Title: Postdoctoral Research Fellow in Colloidal Transport ModelingCareer Level: PostdocCompany OverviewThe Earth Sciences Institute of Orléans (ISTO) is a joint research laboratory between CNRS, the University of Orléans, and BRGM. Our mission is to advance our understanding of the Earth's systems through innovative research and education.SalaryWe...

  • Postdoctoral Position

    2 semanas atrás


    Porto, Portugal Cnrs Tempo inteiro

    Organisation/Company: CNRSDepartment: Laboratoire d'Innovation Moléculaire et ApplicationsResearch Field: Chemistry, Environmental scienceResearcher Profile: Recognised Researcher (R2)Country: FranceApplication Deadline: 30 Nov 2024 - 00:00 (UTC)Type of Contract: TemporaryJob Status: Full-timeHours Per Week: 35Offer Starting Date: 13 Dec 2024Is the job...


  • Porto, Porto, Portugal Associação Do Instituto Superior Técnico Para A Investigação E Desenvolvimento _Ist-Id Tempo inteiro

    Company Overview: Associação Do Instituto Superior Técnico Para A Investigação E Desenvolvimento _Ist-Id is a renowned research institution dedicated to advancing knowledge in various fields, including astrophysics. Our team of experts is passionate about exploring the mysteries of the universe and pushing the boundaries of human understanding.Estimated...


  • Porto, Porto, Portugal Fondation Sciences Mathématiques De Paris Tempo inteiro

    At the Fondation Sciences Mathématiques de Paris, we are committed to fostering excellence in mathematical research. As a postdoctoral researcher in mathematics or theoretical computer science, you will have the opportunity to contribute to the scientific activities of our affiliated laboratories.To be eligible for this program, applicants must hold a...


  • Porto, Portugal La Rochelle Université Tempo inteiro

    Organisation/Company: La Rochelle UniversitéResearch Field: Engineering » Materials engineering, Engineering » Mechanical engineering, Engineering » Chemical engineering, Physics » Applied physicsResearcher Profile: Recognised Researcher (R2), Established Researcher (R3)Positions: Postdoc PositionsCountry: FranceApplication Deadline: 22 Dec 2024 - 12:00...


  • Porto, Porto, Portugal Université Toulouse Iii - Paul Sabatier Tempo inteiro

    Université Toulouse III - Paul Sabatier is seeking a highly motivated Postdoctoral Research Fellow to join the AdipoLive lab at the Institute of Metabolic and Cardiovascular Diseases (I2MC).About the PositionThe successful candidate will be part of an ERC Synergy project, SPHERES, focusing on understanding adipocyte hypertrophy through investigation of its...


  • Porto, Porto, Portugal Cyu Cergy Paris Université Tempo inteiro

    Company OverviewCy Cergy Paris Université, a renowned institution for academic excellence, invites applications for a postdoctoral research position in mathematical analysis. Our university's Department of Mathematics is committed to advancing knowledge and fostering innovative research in various fields. SalaryThe successful candidate will receive a...


  • Porto, Porto, Portugal Gustave Roussy Tempo inteiro

    Job DescriptionWe are seeking a highly motivated and creative Postdoctoral Fellow to join our research team at Gustave Roussy Cancer Center. The successful candidate will work within the Integrative Tumor Immunology and Immunotherapy Research Unit, INSERM UMR1186, under the supervision of Dr. Judith Michels.The project aims to elucidate the impact of...


  • Porto, Portugal Gustave Roussy Tempo inteiro

    Organisation/Company: Gustave RoussyDepartment: INSERM UMR1186Research Field: Medical sciences » Cancer researchResearcher Profile: First Stage Researcher (R1)Country: FranceApplication Deadline: 31 Dec 2024 - 12:00 (Europe/Paris)Type of Contract: TemporaryJob Status: Full-timeIs the job funded through the EU Research Framework Programme? Not funded by a EU...

  • Research Fellow

    Há 5 dias


    Porto, Porto, Portugal Cnrs Tempo inteiro

    **About the Opportunity**Cnrs is seeking a highly motivated Research Fellow to join our team. The successful candidate will work on environmental challenges and ecological transition in China, developing their own research project based on the theme.**Job Overview**We are looking for a Research Fellow with a PhD in the humanities and social sciences,...

  • Postdoctoral Researcher

    2 semanas atrás


    Porto, Porto, Portugal École Normale Supérieure Tempo inteiro

    **Job Description:**We are seeking a highly motivated Postdoctoral Researcher to join our team at the École Normale Supérieure in Paris, France.The successful candidate will work on a 18-month project focused on developing and improving the ORCHIDEE land surface model to better represent the Birch effect and CO2 fluxes from soils during drying/rewetting...


  • Porto, Porto, Portugal Inria - Compo Team Tempo inteiro

    Inria - COMPO team seeks a highly motivated Postdoctoral Research Fellow to join our multidisciplinary team focused on developing novel computational tools for decision-making in clinical oncology.Estimated Salary: €45,000 - €50,000 per yearAbout the Role:We are looking for an exceptional candidate with a strong background in applied mathematics and...


  • Porto, Porto, Portugal Cnrs Tempo inteiro

    Job Description:The CNRS is seeking a highly skilled Postdoctoral Research Associate to join the Physical Chemistry of Electrolytes and Nanosystems team. The successful candidate will have the opportunity to work on an exciting research project focused on developing new theoretical approaches to model and interpret electrical noise in electrolyte...


  • Porto, Portugal Cnrs Tempo inteiro

    Organisation/Company: CNRSDepartment: Institut de Recherche en Infectiologie de MontpellierResearch Field: Chemistry » Biochemistry, Physics » Biophysics, Biological sciences » Biological engineeringResearcher Profile: Recognised Researcher (R2)Country: FranceApplication Deadline: 9 Dec 2024 - 00:00 (UTC)Type of Contract: TemporaryJob Status:...


  • Porto, Porto, Portugal Institut Curie - Research Center Tempo inteiro

    About the RoleThe Institut Curie, a leading research center in cancer biology, is seeking a highly motivated postdoctoral researcher to join our team. The successful candidate will contribute to a groundbreaking project focusing on SMARCB1-deficient cancers.Research Project OverviewThe project aims to elucidate the embryonic lineages that give rise to...

  • Immunology Research Fellow

    1 semana atrás


    Porto, Porto, Portugal Cnrs – Inserm – Aix Marseille University Tempo inteiro

    About Our TeamWe are a team of researchers at CNRS – Inserm – Aix Marseille University, dedicated to advancing our understanding of immunology and its applications in cancer treatment.Job DescriptionThis is an exciting opportunity for a highly motivated postdoctoral fellow to join our team and contribute to the development of innovative treatments for...


  • Porto, Porto, Portugal Latim - Brest Tempo inteiro

    Improve Cancer Treatment with Advanced Optimization TechniquesThe LaTIM laboratory at the University of Brest, France, is seeking a highly motivated postdoctoral researcher to join our team and contribute to the development of innovative optimization methods for intensity-modulated radiation therapy (IMRT). As a postdoctoral fellow, you will have the...


  • Porto, Porto, Portugal Cnrs Tempo inteiro

    About the OpportunityWe are seeking a highly motivated postdoctoral fellow to join our team at CNRS in Strasbourg, France. The successful candidate will be responsible for designing and applying fluorinated alcohols in catalysis to provide an alternative to current systems.Job OverviewThe postdoctoral fellow will conduct research on complex transformations...


  • Porto, Porto, Portugal La Rochelle Université Tempo inteiro

    La Rochelle Université is a leading research institution in France, known for its excellence in engineering and materials science. We are currently seeking a highly skilled Postdoctoral Fellow to join our team at the LaSIE Laboratory. The successful candidate will have the opportunity to work on an exciting project focused on understanding the effects of...


  • Porto, Porto, Portugal Inserm Tempo inteiro

    Company Overview: Inserm, a renowned research organization in France, is seeking a highly skilled postdoctoral fellow to contribute to a groundbreaking study on mother-baby brain synchrony. This innovative project aims to better understand the neural impact of prematurity and the consequences of minipuberty.