About Ruben
French
Native or bilingual
English
Fluent
Portuguese
Conversational
German
Basic
Experience
- Charles Gerhardt Institute,Postdoctoral ResearcherJanuary 2023 - January 2024 (1 year)Montpellier, FranceCNRS/ICGM Postdoc (2023-2024, Montpellier): Development of high-temperature ($\\text{800}^{\circ}\text{C}$) alpha-GeO2 piezoelectric materials for passive SAW sensors. Platinum sputtering deposition (epitaxial IDT electrodes), in situ characterization: SEM, AFM, EDX/EDS, GDMS, XRD/ND, impedance spectroscopy. Optimization of thermal stability/adhesion/multilayers.
- Charles Gerhardt Institute,PhD ResearcherJanuary 2020 - January 2023 (3 years)Montpellier, FrancePhD ICGM (2020-2023): Oxygen/long-range electronic order in non-stoichiometric Ruddlesden-Popper oxides (La2CoO4±δ, Nd2NiO4). Single crystal growth (TSFZ image furnace), in situ synchrotron/neutron diffraction (structural/magnetic transitions, O2 mobility at low T). Publications: Crystal Growth Design (2022), Materials Advances (2023), Inorganic Chemistry (submitted 2025).
- Institute of Mineralogy, Physics of Materials and Cosmochemistry (IMPMC),Internship M2February 2009 - July 2019 (10 years and 5 months)Paris, FranceStudied K/Na graphite intercalation compounds under high pressure (graphite-diamond transition, 15 GPa/2000 K).Paris-Edinburgh/multi-anvil presses, high P XRD, Raman, PPMS, Rietveld (1st resolution of high-stage K-graphite). Predictive modeling of new "intercalated diamond" phases.
Recommendations
Be the first to recommend Ruben
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- PhDUniversity of Montpellier2023PhD
- Master's DegreePierre and Marie Curie University2019Master's Degree
Skill set
Categories
- Other