Seminar: “What Is the Purpose of?” Magnetometry (SQUID) and Electron Paramagnetic Resonance (EPR)

Come learn about magnetometry (SQUID) and Electron Paramagnetic Resonance (EPR).

The latest-generation MPMS3 magnetometer from Quantum Design, acquired in 2021, is equipped with a “SQUID” device that can measure the slightest variations in magnetic flux generated by the sample. It can be used to determine magnetic properties at various temperatures (from 1.8 to 400 Kelvin) and under various magnetic fields (from -7 to 7 Tesla). Its various options enable studies of magnetic relaxation time (AC mode), magnetization angle (rotating motor), and even under light irradiation (optical fiber).

RPE is better suited for the study of paramagnetic compounds containing one or more unpaired electrons, and in particular for the study of organic radicals generated by various means (heating, irradiation, reaction intermediates, etc.)

About the speakers:

Technical Section:

Corine REIBEL, research engineer UM , and Gautier FELIX, research fellow at the CNRS, are respectively the head and scientific coordinator of the “Magnetometry and RPE” department, which includes two SQUID magnetometers and an X-band RPE spectrometer, all equipped with vacuum, thermometry, and cryogenics systems. Corine REIBEL will be your point of contact for all inquiries and measurement requests.

Examples of science projects:

Farah ABDEL-SATER is a first-year Ph.D. student working on her dissertation under the direction of Joulia LARIONOVA and the supervision of Gautier FELIX in the D1 department at ICGM. Her dissertation focuses on the release of free radicals through thermal activation at the nanoscale using magnetic nanoplatforms.

Fatiha AZROUR is a third-year doctoral student working on her dissertation under the supervision of Jérôme Rouquette and Mickael Beaudhuin in the D4 department at ICGM. Her dissertation focuses on the study of various properties—particularly magnetic properties—of several lanthanide compounds in their crystalline state.

Joshua VAULOUP is a third-year Ph.D. student as part of a collaboration between the D2 and D4 departments at ICGM. He works with Laure Monconduit, Moulay Sougrati, and Lorenzo Steviano. One of his research topics focuses on the recycling of strategic metals from lithium-ion batteries. He is studying a method for reducing cobalt to its metallic form using mechanochemistry in order to selectively extract this element using magnetism. He uses a SQUID magnetometer to quantify the reduction of cobalt.

Access to the campus with a QR code (please email to request a code). For more information, contact the Chemistry Department.