Physics

Our unit has a long tradition in magnetic semiconductor research. Our research focuses mainly on II-V and II-IV-V semiconductors doped with magnetic impurities, and our unit is one of the leading groups in this narrow area.

We have developed an analytical method for transport phenomena, Hall voltage, and resistivity research results, and we are also investigating the suitability of these materials for spintronics applications.

Our new research topic is carbon nanoparticles in which interesting ferromagnetic behavior has been observed.

For superconductors, our unit has focused on investigating the order parameter symmetry in Pnictide superconductors and high temperature superconductors (HTSC). Pnictide superconductors are a new group of superconductors whose order parameter symmetry is studied by computational methods. The research also aims to obtain more information about the electrical conductivity of Pnictide superconductors in strong magnetic fields.

In the field of semiconductor detectors, our group works closely with the European Center for Particle Research (CERN). CERN's activities are at the forefront of particle physics, and operations in Finland are coordinated in co-operation between the University of Helsinki, Aalto University, the University of Jyväskylä, the University of Tampere and Lappeenranta University of Technology.

The main goal of the CMS experiment is to produce new discoveries in particle physics, but at the same time to do hardware development work to enable the experiments. Our team has manufactured more than 2,000 optical link cards for the CMS trigger station, and is also actively involved in the development of MIGFET transistors and 3D Stripixel detectors.

Our unit is also researching the UTDR (Ultrasound time domain reflectometry) method.