Magnetic skyrmions

The BME-MTA Magneto-optical Spectroscopy Research Group of the Department of Physics published two experimental studies in Scientific Reports. In their first study [1], they reveal the ferroelectric domain structure of polar magnets, and their effects on the magnetic skyrmions in the material. In their subsequent work [2], they report the first-time observation of an exotic magnetically ordered ground state, a so-called skyrmion lattice.

[1] Á. Butykai, S. Bordács, I. Kézsmárki, V. Tsurkan, A. Loidl, J. Döring, E. Neuber, P. Milde, S. C. Kehr, L. M. Eng, Characteristics of ferroelectric-ferroelastic domains in Néel-type skyrmion host GaV4S8, Scientific Reports 7, 44663 (2017).
[2] S. Bordács, Á. Butykai, B. G. Szigeti, J. S. White, R. Cubitt, A. O. Leonov, S. Widmann, D. Ehlers, H.-A. Krug von Nidda, V. Tsurkan, A. Loidl, I. Kézsmárki, Equilibrium Skyrmion Lattice Ground State in a Polar Easy-plane Magnet, Scientific Reports 7, 7584 (2017).

New helium liquefier

The Department of Physics received funding to establish a new helium liquefier. As part of the project, developments at our partners ELTE, MTA TTK, MTA EK and MTA Wigner RC will also be realized, aiding the collaboration of these institutions, and the sustainable helium consumption in Central Hungary.

Novel spin relaxation in semiconductors

The theoretical description of spin relaxation is the key to spintronics, a potential new paradigm aiming to substitute conventional electronics. The study, published by the BME-MTA PROSPIN research group in Scientific Reports, identifies a new regime of spin relaxation, characterized by non-exponential behavior. The group also introduces an efficient numerical method, allowing to accurately predict spin-relaxation times even for materials possessing complicated spin-orbit interaction.