Research at HFML-FELIX

HFML-FELIX's high-field magnets and free-electron lasers enable scientists to expose matter to extreme conditions and drive it into previously inaccessible states and phases. Our dedicated research groups take full advantage of these possibilities by pushing the boundaries of science with their innovative research projects.

roadmap hfml-felix science

Research groups

HFML-FELIX has a strong in-house research programme subdivided into six accomplished research groups with a focus on the creative use of high magnetic fields, intense infrared and THz free-electron lasers, and the combination thereof to conduct a distinguishing research programme.

Condensed Matter Physics

The Condensed Matter Physics group uses the radiation of free electron laser FELIX to study both static and dynamic properties of matter. The goal of their research is to understand and control the relationship between the properties and structure of nanoscopic and molecular materials, with an emphasis on phenomena that occur on very short time scales. The underlying line is the interaction of photons with matter, the ambition is to achieve full control.

Staff scientists: Andrei Kirilyuk | Joost Bakker | Carl Davies

Correlated Electron Systems

The Correlated Electron Systems group focuses on a variety of topics like unconventional superconductivity, low-dimensional metals, quantum critical phenomena and quantum magnetism. Other topics of interest include magnetization, magnetostriction, thermopower, and the Nernst effect. 

Staff scientists: Nigel Hussey

Hand working on equipment

FELIX Infrared and THz Spectroscopy

The FELIX Infrared and THz Spectroscopy group develops and uses mass spectrometric techniques in combination with advanced infrared and terahertz spectroscopy. Their main scientific focus is in the field of astrochemistry, with the aim to understand the chemical evolution in astrophysical environments, such as interstellar star-forming regions or (exo-) planetary atmospheres, by simulating their conditions in the laboratory.

Staff scientists: Britta Redlich | Sandra Brünken

Molecular Structure and Dynamics

The Molecular Structure and Dynamics group combines and integrates mass spectrometry with IR spectroscopy, enabling them to obtain infrared spectral fingerprints for mass-selected ions inside the mass spectrometer. They apply infrared ion spectroscopy in various analytical challenges of identifying molecular structures of low-abundance compounds within complex mixtures, e.g. in biomarker discovery. 

Staff scientists: Jos Oomens | Jonathan Martens | Giel Berden

Semiconductors & Nanostructures

The Semiconductors & Nanostructures group mostly studies quantum phenomena and transport in low-dimensional systems like graphene, oxide heterostructures and topological insulators. Other topics of interest include far infrared resonances (cyclotron and spin), and interband magneto-optics.

Staff scientists: Uli Zeitler | Steffen Wiedmann

Equipment close-up

Soft Condensed Matter & Nanomaterials

The Soft Condensed Matter & Nanomaterials group primarily conducts research on magnetic levitation, the alignment of molecular systems and in situ monitoring of crystal growth. Other topics of interest include chirality and molecular magnetism. 

Staff scientists: Peter Christianen | Hans Engelkamp

Research projects

  • National Individual floating Transport Infrastructure (NIFTI)

    National Individual Floating Transport Infrastructure (NIfTI)

    Researchers from the National Individual Floating Transport Infrastructure (NIFTI) project will be studying the feasibility of a radically new form of transportation in which an individual module is driven by subsurface magnets.

Discover more projects


The HFML-FELIX laboratory, together with its external users, generally publishes around a hundred studies per year. The summarized overview on this page is but a selection of the most recent and/or high-profile publications. For a comprehensive list of all our work, download the PDF files below.

Recent publications 

A vibrational action spectroscopic study of the Renner–Teller- and spin–orbit-affected cyanoacetylene radical cation HC3N+. 
Kim Steenbakkers, Aravindh. N. Marimuthu, B. Redlich, G.C. Groenenboom and Sandra Brünken: (2023)
J. Phys. Chem., 158, 084305-1 084305-11.  [PDF]

Characterization of Solar Radiation-Induced Degradation Products of the Plant Sunscreen Sinapoyl Malate.
Matthias J.A. Vink, J.J. Schermer, J. Martens, W. J. Buma, G. Berden and J. Oomens: (2023) 
ACS Agric. Sci. Technol., 3, 171-180.  [PDF]

Targeted Small-Molecule Identification Using Heartcutting Liquid Chromatography–Infrared Ion Spectroscopy. 
R.E. van Outersterp, Jitse Oosterhout, Christoph R. Gebhardt, G. Berden, U. F. Engelke, R. A. Wevers, F. Cuyckens, J. Oomens and J. Martens: (2023) 
Anal. Chem., 95, 3406-3413.  [PDF]

A Dynamic Proton Bond: MH+·H2O ⇌ M·H3O+ Interconversion in Loosely Coordinated Environments. 
B. Martinez-Haya, J.R. Avilés-Moreno, F. Gamez, J. Martens, J. Oomens and G. Berden: (2023) 
J. Phys. Chem. Letters, 14, 1294-1300. [PDF]

Binding Modes of a Cytotoxic Dinuclear Copper(II) Complex with Phosphate Ligands Probed by Vibrational Photodissociation Ion Spectroscopy. 
Marco Giampà, Davide Corinti, Alessandro Maccelli, Simonetta Fornarini, G. Berden, J. Oomens, Sabrina Schwarzbich, Thorsten Glaser and Maria Elisa Crestoni: (2023)
Inorganic Chemistry, 62, 1341–1353.  [PDF]

Differentiation between Isomeric 4,5-Functionalized 1,2,3-Thiadiazoles and 1,2,3-Triazoles by ESI-HRMS and IR Ion Spectroscopy. 
Dmitrii M. Mazur, E.L. Piacentino, G. Berden, J. Oomens, V. Ryzhov, Vasiliy A. Bakulev and Albert T. Lebedev: (2023) 
Molecules, 28, 977-1 - 977-14.  [PDF]

Novel cerebrospinal fluid biomarkers of glucose transporter type 1 deficiency syndrome: Implications beyond the brain's energy deficit. 
Tessa M.A. Peters, J. Merx, Pieter C. Kooijman, Marek Noga, de Siebolt Boer, Loes A. Gemert van, Guido Salden, U. F. Engelke, Dirk J. Lefeber, R.E. van Outersterp, T.J. Boltje, Rafael Artuch, Leticia Pias-Peleteiro, Ángeles Garcia-Cazorla, Ivo Barić, Thöny Beat, J. Oomens, J. Martens, R. A. Wevers, Marcel M. Verbeek, K. L. M. Coene and Michèl A. A. P. Willemsen: (2023) 
Journal of Inherited Metabolic Disease, 46, 66-75.  [PDF]

Phonon-mediated room-temperature quantum Hall transport in graphene.
D. Vaquero, V. Clericó, M. Schmitz, J.A. Delgado-Notario, A. Martin-Ramos, J. Salvador-Sánchez, C. S. A. Müller, K. Rubi, K. Watanabe, T. Taniguchi, B. Beschoten, C. Stampfer, E. Diez, M. I. Katsnelson, U. Zeitler, S. Wiedmann and S. Pezzini. 
Nature Communications 14 (2023), 3005  - [PDF]

Antiferromagnetic hysteresis above the spin-flop field.
M.J. Grzybowski, C.F. Schippers, O. Gomonay, K. Rubi, M. E. Bal, U. Zeitler, A. Kozioł-Rachwał, M. Szpytma, W. Janus, B. Kurowska, S. Kret, M. Gryglas-Borysiewicz, B Koopmans and H.J.M. Swagten. 
Physical Review B 107 (2023), L060403

Publication lists