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Versatile high sensitivity and throughput magnetometer for quantum, functional and applied materials

English title Versatile high sensitivity and throughput magnetometer for quantum, functional and applied materials
Applicant Rønnow Henrik M.
Number 189644
Funding scheme R'EQUIP
Research institution EPFL SB IPHYS CQSL Computational Quantum Science Laboratory)
Institution of higher education EPF Lausanne - EPFL
Main discipline Condensed Matter Physics
Start/End 01.03.2020 - 31.12.2021
Approved amount 330'497.00
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Keywords (6)

Magnetism; Physics; low-temperature; SQUID; Magnetization; Spintronics

Lay Summary (French)

La magnétisation est la quantité physique basique qui caractérise les aimants et les magnétomètres à base de SQUID sont les machines les plus sensibles utilisées pour mesurer la magnétisation.
Lay summary

Ce projet SNF R'Equip sera utilisé pour acquérir et mettre en service le dernier cri magnétomètre à base de SQUID. De plus, nous visons à obtenir un éventail d'options qui nous permettront d'effectuer des recherches scientifiques dans de nombreux domaines de recherche: déchiffrer les questions fondamentales sur les aimants quantiques, améliorer les aimants pour les applications quotidiennes, aider à développer de meilleurs outils de coupe et permettre le contrôle de la lumière des états magnétiques.

Direct link to Lay Summary Last update: 09.12.2019

Responsible applicant and co-applicants


Magnetic structure of the topological semimetal YbMnSb2
Soh Jian-Rui, Tobin Siobhan M., Su Hao, Zivkovic Ivica, Ouladdiaf Bachir, Stunault Anne, Rodríguez-Velamazán J. Alberto, Beauvois Ketty, Guo Yanfeng, Boothroyd Andrew T. (2021), Magnetic structure of the topological semimetal YbMnSb2, in Physical Review B, 104(16), L161103-L161103.
Synthesis of murunskite single crystals: A bridge between cuprates and pnictides
Tolj Davor, Ivšić Trpimir, Živković Ivica, Semeniuk Konstantin, Martino Edoardo, Akrap Ana, Reddy Priyanka, Klebel-Knobloch Benjamin, Lončarić Ivor, Forró László, Barišić Neven, Ronnow Henrik M., Sunko Denis K. (2021), Synthesis of murunskite single crystals: A bridge between cuprates and pnictides, in Applied Materials Today, 24, 101096-101096.
Stepwise Reduction of Dinitrogen by a Uranium–Potassium Complex Yielding a U(VI)/U(IV) Tetranitride Cluster
Jori Nadir, Barluzzi Luciano, Douair Iskander, Maron Laurent, Fadaei-Tirani Farzaneh, Zivković Ivica, Mazzanti Marinella (2021), Stepwise Reduction of Dinitrogen by a Uranium–Potassium Complex Yielding a U(VI)/U(IV) Tetranitride Cluster, in Journal of the American Chemical Society, 143(29), 11225-11234.

Associated projects

Number Title Start Funding scheme
163016 Reprogrammable magnonics based on periodic and aperiodic ferromagnetic nanostructures 01.04.2016 Project funding
171003 Discovery and Nanoengineering of Novel Skyrmion-hosting Materials 01.10.2017 Sinergia
164013 Laser-heated Floating Zone Furnace for EPFL Crystal Growth Facility 01.11.2016 R'EQUIP
181974 Investigations in Supramolecular Chemistry 01.01.2019 Project funding
180652 Educated search for high-temperature superconductivity in novel electronic materials 01.01.2019 Croatian-Swiss Research Programme
182536 New structures and dynamics emerging from frustration 01.12.2018 Project funding
188707 Creation and exploration of high-density topological skyrmion phases in 4f magnets 01.11.2020 Project funding
176789 Crystalline micro-devices of quantum matter 01.06.2018 SNSF Professorships
177550 Terahertz spintronics and magnonics of ferro- and antiferromagnets 01.07.2018 ERA.Net RUS Plus
172611 Superconductivity, magnetism and unconventional charge dynamics of high temperature superconductors, oxide thin films and heterostructures 01.04.2017 Project funding
188648 Quantum Magnetism - from fundamentals to applications 01.10.2019 Project funding
169699 Universal aspects of meta-magnetic transitions in frustrated Ising chains 01.09.2017 Project funding
172659 New materials for honeycomb-lattice and single-ion magnets 01.08.2017 Project funding


Magnetic materials span many important areas of condensed matter physics, from the study of fundamental collective quantum effects, through novel electronic properties in emerging materials and industrially important ferromagnets to potential future technologies such as spintronics. Common to all of these fields is that the most fundamental quantity that can be measured is the magnetization, and how it develops with temperature, applied magnetic field and varying sample parameters. Essentially, it is the prerequisite to any other investigations.In this proposal, we request funding to acquire a state-of-the-art SQUID magnetometer. This latest generation of commercial magnetometers has an order of magnitude improved sensitivity, significantly higher data-quality and data-collection rate allowing more and better data to be collected. Moreover, the desired system can be provided with a high-temperature option to 1000K of which there exist only once comparable system in Switzerland, and magneto-optical SQUID magnetometry, which to our knowledge will be unique in Switzerland. Moreover will we develop high-pressure diamond anvils both for low temperature and, using laser heating through the magneto-optic system, up to high temperatures relevant for planetary science. Also these options will be unique in Switzerland.The requested instrument will be installed and maintained in the Laboratory for Quantum Magnetism (LQM), where about 12 PhD students, postdocs and senior scientists will benefit from it for their individual research projects, a selection of which are outlined in section 2. We will operate it as a facility open to collaborators from all of EPFL and the rest of Switzerland. The very wide base of scientists that will benefit from the equipment is documented by the list 20 currently funded projects (SNF, ERC and Innosuisse) that foresee use of the machine. Additionally, the machine will service local Swiss industry both through Innosuisse R&D projects and as a service facility for companies. Examples of such collaborative projects are also provided in section 2.Through the many planned sub-projects, the requested instrument will address the following scientific topics: Novel Magnetic Materials, Unconventional superconductivity, Functional magnets, Magneto-optical materials, High-pressure magnetometry and Industry driven materials science.