Condensed Matter Physics F5


Research departments
Administration and support units


The research program is focused on the study of the structure and dynamics of disordered and partially ordered condensed matter at the atomic and molecular level with special emphasis on phase transitions. The purpose of these investigations is to discover the basic laws of physics governing the behavior of these systems, which represent the link between perfectly ordered crystals on one side and amorphous matter, soft condensed matter and living systems on the other.

An important part of the research program is devoted to the development of new experimental methods and techniques in the field of magnetic resonance, magnetic resonance imaging, scanning tunneling, electronic and atomic force microscopy, as well as dielectric relaxation spectroscopy and dynamic specific heat measurements.


  • Physics of disordered and partially ordered matter
  • Physics of soft matter, surfaces and nanostructures
  • Experimental biophysics

Departmental web pages
Selected publications (NMR group)

Head of Department
Prof. Denis Arčon,

Marjeta Tršinar,
Telephone: +386 1 477 34 56
Maša Kavčič,
Telephone: +386 1 477 39 13
Vesna Lopatič,
Telephone: +386 1 477 31 97

In the field of disordered and partially ordered matter, our investigations are focused on quasicrystals, incommensurate crystals and complex metallic alloys with gigantic unit cell, which show outstanding combination of material properties. Our investigations also include physics of relaxors and disordered ferroelectrics, materials for spintronics and magnetoelectric materials, multiferroics, organic magnetic materials, electroactive polymers and elastomers, carbon nanofoams and TiO2 nanotubes. New methods of Nuclear Quadrupole Resonance have been developed for the detection of small amounts of explosives.

The investigations of soft matter, surfaces and nanostructures are focused on liquid crystals with a strong emphasis on colloidal self-assembly in 2D and 3D, phase separation and interfacial ordering at surface templates. In the field of nanostructures, we are focused on the synthesis of anorganic nanotubes, nanoropes and belts, and we are studying directed assembly of single atoms and molecules at surfaces. We have recently developed a new method for the single-molecule synthesis, based on the low temperature Scanning Tunneling Microscope. We are succesful in the application of liquid crystals in light shutters and modulators.

Our research programme in experimental biophysics is focused on the physics of cell membranes and transport of biologically active materials across lipid membranes. We are using spin labelling EPR techniques to explored processes and structures of various complex systems including the effects of various bioactive. We are using in vivo oxymetry techniques for the optimization of medical treatment in tumor therapies, as well as the magnetic resonance imaging techniques and mathematical modeling of biological and granular materials with applications in wood science, constrained diffusion and food processing.

The department is among the leading European laboratories for magnetic resonance.


Redni dogodki na odseku
- Redni tedenski sestanki raziskovalcev
- Seminarji odseka, vsak drugi četrtek, od oktobra do junija
- Vsako leto odsek organizira evropsko šolo o magnetni resonanci materialov.

J. Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia, Telephone: +386 1 477 39 00