TDK conference prizes

Bálint Beke won the 3rd prize of the Optics Session of the TDK conference, whereas Máté Podráczki received commendation.

NKKP grant for Sándor Bordács

Sándor Bordács received NKKP grant from the Hungarian granting agency NKFIH to study "Magnetic field control of topology" (150 MHUF).

Bence Szász received KDP PhD fellowship

Bence Szász received KDP PhD fellowship to start his research on "Hybridization of magnon and electric resonances in magnetoelectric crystals" in collaboration with Semilab Zrt. His  supervisor is Dávid Szaller and his consultant at the industrial partner is Áron Pekker.

Congratulations Dr. Tóth!

Boglárka Tóth has defended her PhD thesis titled as Spectroscopic studies in magnetoelectric and spiral antiferromagnets. Congratulations!

Imaging of antiferromagnetic domains

We observed unusually strong non-reciprocal light absorption in the magnetoelectric antiferromagnet LiCoPO4 that enabled us to visualize antiferromagnetic domains. The study became a featured article in Phys. Rev. B and highlighted by the Editors.

Congratulations Dr. Farkas!

Dániel G. Farkas has defended his PhD thesis titled as Cycloidal domains and spin-wave excitations in the multiferroic BiFeO3. Congratulations!

Strong spin-lattice coupling in Swedenborgites

In collaboration with Japanese, Estonian, and Hungarian physicists, we observed an unusual form of strong spin-lattice coupling using infrared spectroscopy. In multiferroic Swedenborgites, the lifetime of lattice vibrations (phonons) is significantly reduced, and phonons scatter strongly due to fluctuations in the disordered paramagnetic phase. The strong coupling was explained by the fact that the degrees of freedom of the transition metals remain active, resulting in strong spin-lattice interaction through spin-orbit coupling. https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.130.036801

Jakub Vít has defended his PhD thesis

Congratulations Dr. Vít!

Bence Szász won the 3^rd prize of the Experimental Physics Session of the TDK conference.

Magnetic modulations with sub-10 nm periodicity

Our paper on the modulated magnetic phases of GaMo₄S₈ has been published in the npj Quantum Materials. npj Quantum Materials 7, 26 (2022)

Electric field control of THz non-reciprocal directional dichroism

Our paper on the electric field control of directional dichroism via the switching of the antiferromagnetic domains in Ba₂CoGe₂O₇ has been published in the Physical Review Letters. Phys. Rev. Lett. 127, 157201 (2021)

Boglárka Tóth won the 1^st prize of the Physics Session of the TDK conference.

Microwave directional dichroism in multiferroic lacunar spinel GaV4S8

In collaboration with researchers from CEMS, RIKEN, Japan, we have shown that microwave absorption could depend on the propagation direction in a co-planar waveguide. The results appeared in Physical Review Letters:

Y. Okamura, S. Seki, S. Bordács, Á. Butykai, V. Tsurkan, I. Kézsmárki, and Y. Tokura, Phys. Rev. Lett. 122, 057202 (2019)

Hiking in the Mátra

We travelled to Mátramindszent with the nanoelectronics group. A szilárdtestfizika labor 2018-ban Mátramindszenten rendezte meg a csoportkirándulását. Photos from the excursion

Sándor Bordács received the Young Scientist Award of the Hungarian Academy of Sciences

Magnetic Field Control of Cycloidal Domains and Electric Polarization in Multiferroic BiFeO 3

The cycloidal spin structure in ferroelectric monodomain single crystals of the room-temperature multiferroic BiFeO3 was studied using small-angle neutron scattering. The results appeared in Physical Review Letters:

S. Bordács, D. G. Farkas, J. S. White, R. Cubitt, L. DeBeer-Schmitt, T. Ito, and I. Kézsmárki, Phys. Rev. Lett. 120, 147203 (2018)