We study the quantum and classical phenomena in small electronic systems, with a focus on superconductivity, magnetism, topological media and open quantum systems. Our approach is based on phenomenological low-energy theory of quantum systems. In each project we work in close collaboration with world-leading experimental groups.
Overview
Core fields of research
Basic natural phenomena and mathematical thinking
Research areas
Nanoscience Center
Materials physics
Second quantum revolution
Faculty
Faculty of Mathematics and Science
Department
Department of Physics
Research group description
Present research topics
Flat-band superconductivity and magnetism. We study interacting phases in systems with exotic electronic dispersion. We participate in the SuperC2033 project, with the grand idea of reaching room-temperature superconductivity by 2033. We are also part of the Simons collaboration on new frontiers in superconductivity.
Dynamic properties of quantum materials. Special focus is on 2D materials with strong spin-orbit interaction, superconductors, magnets, and especially collective modes in them.
Semiconductor-based Josephson quantum electronics. Special focus is on Josephson diode effects and general non-reciprocal transport, along with gateable Josephson junctions. We participate in the Jogate EU project that is part of the EU Chips JU.
Open quantum systems. Now special focus is on hybrid driven systems and on feedback effects. We are members of the Finnish Quantum Flagship.
Other recent research topics
Electronic properties of graphite and their relation to topological media. In particular, we seek models to explain high-temperature interface superconductivity observed in graphite. We are also extending such studies to generic artificial topological structures.
Nonequilibrium and thermoelectric effects in superconductor-ferromagnetic hybrid structures. Recent studies include characterisation of nonequilibrium modes in this type of systems, and the possible use of such systems as efficient radiation detectors. The latter was done especially in the FET Open SUPERTED project.
Magnetization dynamics especially in superconductor/ferromagnet heterostructures. The key problems are the studies of spin torque and its reciprocal effect, spin pumping.
Open quantum systems in various disguises. We have especially studied quantum optomechanics and, in particular, their microwave realisations. At present, we study a magnetic variation of optomechanics, so-called magnomechanics, as well as measurements of strong coupling between light and molecules which is often termed molecular polaritonics.
Kalle Kansanen, PhD 2022. Then a postdoc at Lund and Aalto 2022-2024. Now a Marie Curie postdoc in Lund University.
Risto Ojajärvi, PhD 2022. Postdoc in KIT Karlsruhe 2022-2024. Now a postdoc in the CMT group.
Faluke Aikebaier, PhD 2020. Then a postdoc in Aalto and Tampere universities.
Teemu Peltonen, PhD 2020. Then software developer 2021-2023. Researcher at Magister Solutions 2023-
Ville Kauppila, PhD 2016. Postdoc in UAM Madrid 2017-2018. Analyst at OP 2018-
Raphael Khan, PhD 2015. Sales engineer/scientist at Bluefors 2016-
Matti Laakso, PhD 2012. Postdoc in RWTH Aachen 2012-2014. Software designer at Espotel 2014-2015. Software architect at Kone 2016-
Juha Voutilainen, PhD 2012. Patent examiner at National Board of Patents and Registration 2013-2016. Patent attourney at Papula Nevinpat 2016-
Pauli Virtanen, PhD 2009. Postdoc in Würtzburg, Braunschweig and Academy Postdoc at Aalto. Researcher at JYU and SNS Pisa. Now a senior researcher in the CMT group.
Teemu Ojanen, PhD 2007. Postdoc at Freie Universität Berlin 2008-2010. Academy Postdoc at Aalto 2010-2012. Academy Research Fellow and senior researcher at Aalto 2012-2018. First associate, then full professor at University of Tampere 2018-
Postdocs
Andrii Sokolov. 2022-2023.
Camillo Tassi. 2020-2021. Then a postdoc in DIPC San Sebastian 2022-2023. Now a postdoc in the University of Pisa.
Yao Lu. 2019-2022. Then a postdoc in CFM San Sebastian. Now an associate professor in the Huaqiao University, China.
Philippe Djorwe. 2015-2017. Then a postdoc at IEMN CNRS in France and Catalan Institute of Nanoscience and Nanotechnology in Spain.
Subrata Chakraborty. 2017-2019. Then a postdoc at Queen's college New York and University of Konstanz. Now a research support technician at UAM Madrid.
Timo Hyart. 2014-2018. Then a senior researcher and a group leader in Mag Top in Warsaw, Poland and a senior postdoc in Aalto. Now a senior researcher in Aalto University.
Mikhail Silaev. Then an Academy research fellow in the CMT group.
Janne Viljas. 2009-2011. Then a senior patent examiner in the Finnish Patents and Registration Office.
Pauli Virtanen. Now a senior researcher in the CMT group.
Francesco Massel. 2010-2012. Then a postdoc in the University of Helsinki, and an Academy research fellow in the CMT group. Now a professor in the University of South-Eastern Norway
Academy research fellows
Mikhail Silaev. 2017-2021. Then a senior researcher in the University of Tampere.
Francesco Massel. 2014-2019. Now a professor in the University of South-Eastern Norway.
