133 citations · 840 across the 30 of their papers we have counts for
31 papers
Frustration-induced multiferroicity in hauerite MnS2
Vilmos Kocsis, Harish K. Singh, Kranthi K. Bestha +4
Pyrite-type mineral hauerite MnS is a magnetic insulator with localized moments. Below 48 K, it develops a collinear antiferromagnetic order, accompanied by unit-ce…
Imaging antiferromagnetic domains in LiCoPO via the optical magnetoelectric effect
B. Tóth, V. Kocsis, Y. Tokunaga +3
Antiferromagnetic (AFM) materials are considered as promising building blocks of novel data storage devices, still, detecting and manipulating AFM domains have remained challenging…
Magnetic phase diagram and spin Hamiltonian of antiferromagnet CsCoI
S. D. Nabi, L. Facheris, V. Romerio +12
We report comprehensive thermodynamic and neutron scattering measurements on the = 3/2 antiferromagnet CsCoI, a member of the thoroughly studied family of frustrated ma…
Strongly Entangled Kondo and Kagome Lattices and the Emergent Magnetic Ground State in Heavy-Fermion Kagome Metal YbVSn
Rui Lou, Max Mende, Riccardo Vocaturo +31
Applying angle-resolved photoemission spectroscopy and density functional theory calculations, we present compelling spectroscopic evidence demonstrating the intertwining and mutua…
All-optical control of antiferromagnetic domains via an inverse optical magnetoelectric effect
Shingo Toyoda, Vilmos Kocsis, Yusuke Tokunaga +5
Antiferromagnets are a promising platform for next-generation spintronics due to their ultrafast spin dynamics and robustness to external fields. All-optical control of antiferroma…
Spin Hall magnetoresistance at the altermagnetic insulator/Pt interface
Miina Leiviskä, Reza Firouzmandi, Kyo-Hoon Ahn +22
The resistance of a heavy metal can be modulated by an adjacent magnetic material through the combined effects of the spin Hall effect, inverse spin Hall effect, and dissipation of…
Anomalous quasielastic scattering contribution in the centrosymmetric multi- helimagnet SrFeO
N. D. Andriushin, J. Grumbach, A. A. Kulbakov +14
Centrosymmetric compounds which host three-dimensional topological spin structures comprise a distinct subclass of materials in which multiple- magnetic order is stabil…
Phonon thermal transport shaped by strong spin-phonon scattering in a Kitaev material NaCoTeO
Xiaochen Hong, Matthias Gillig, Weiliang Yao +7
The recent report of a half-quantized thermal Hall effect in the Kitaev material -RuCl has sparked a strong debate on whether it is generated by Majorana fermion edge curren…
Spin-lattice and magnetoelectric couplings enhanced by orbital degrees of freedom in polar magnets
Vilmos Kocsis, Yusuke Tokunaga, Toomas Rõõm +5
Orbital degrees of freedom mediating an interaction between spin and lattice were predicted to raise strong magnetoelectric effect, i.e. realize an efficient coupling between magne…
Refining magnetic interactions from the magnetic field dependence of spin-wave excitations in magnetoelectric LiFePO
L. Peedu, V. Kocsis, D. Szaller +13
We investigated the spin excitations of magnetoelectric by THz absorption spectroscopy in magnetic fields up to 33T. By studying their selection rules, we fou…
Investigation of the magnetoelastic coupling anisotropy in the Kitaev material -RuCl
Vilmos Kocsis, David A. S. Kaib, Kira Riedl +9
The Kitaev material -RuCl is among the most prominent candidates to host a quantum spin-liquid state endowed with fractionalized excitations. Recent experimental and theoret…
Frustration model and spin excitations in the helimagnet FeP
A. S. Sukhanov, Y. V. Tymoshenko, A. A. Kulbakov +14
The metallic compound FeP belongs to the class of materials that feature a complex noncollinear spin order driven by magnetic frustration. While its double-helix magnetic structure…
Switching of antiferromagnetic states in LiCoPO as investigated via the magnetoelectric effect
Vilmos Kocsis, Yusuke Tokunaga, Yoshinori Tokura +1
The linear magnetoelectric (ME) effect allows for the selection or switching between two antiferromagnetic (AFM) states via the application of large electric () and magnetic ($H…
Berry curvature generation detected by Nernst responses in ferroelectric Weyl semimetal
Cheng-Long Zhang, Tian Liang, M. S. Bahramy +6
The quest for nonmagnetic Weyl semimetals with high tunability of phase has remained a demanding challenge. As the symmetry breaking control parameter, the ferroelectric order can…
Magnetoelectric spectroscopy of spin excitations in LiCoPO4
Vilmos Kocsis, Sándor Bordács, Yusuke Tokunaga +7
We have studied spin excitations in a single-domain crystal of antiferromagnetic LiCoPO4 by THz absorption spectroscopy. By analyzing the selection rules and comparing the strength…
Strong magneto-optical effects in ACr2O4 A=Fe, Co spinel oxides generated by tetrahedrally coordinated transition metal ions
Vilmos Kocsis, Sándor Bordács, Joachim Deisenhofer +5
Magneto-optical effects have been investigated over the infrared{visible spectral range in ACr2O4 (A = Fe, Co) spinel oxides with non-collinear spin orders in their ground states.…
Unusual heat transport of the Kitaev material NaCoTeO: putative quantum spin liquid and low-energy spin excitations
Xiaochen Hong, Matthias Gillig, Richard Hentrich +10
We studied the field dependent thermal conductivity () of NaCoTeO, a compound considered as the manifestation of the Kitaev model based on the high-spin Co$^{2…
In-situ electric field control of THz non-reciprocal directional dichroism in the multiferroic BaCoGeO
J. Vít, J. Viirok, L. Peedu +11
Non-reciprocal directional dichroism, also called the optical-diode effect, is an appealing functional property inherent to the large class of non-centrosymmetric magnets. However,…
The Magnetoelastic Distortion of Multiferroic BiFeO in the Canted Antiferromagnetic State
Toomas Rõõm, Johan Viirok, Laur Peedu +17
Using THz spectroscopy, we show that the spin-wave spectrum of multiferroic BiFeO in its high-field canted antiferromagnetic state is well described by a spin model that violat…
Field-induced phase transitions of the Kitaev material -RuCl probed by thermal expansion and magnetostriction
S. Gass, P. M. Cônsoli, V. Kocsis +8
High-resolution thermal expansion and magnetostriction measurements were performed on single crystals of -RuCl in magnetic fields applied parallel to the Ru-Ru bonds. The le…
Spin excitations of magnetoelectric LiNiPO in multiple magnetic phases
Laur Peedu, Vilmos Kocsis, Dávid Szaller +11
Spin excitations of magnetoelectric LiNiPO are studied by infrared absorption spectroscopy in the THz spectral range as a function of magnetic field through various commensurat…
Magnetization-polarization cross-control near room temperature in hexaferrite single crystals
Vilmos Kocsis, Taro Nakajima, Masaaki Matsuda +9
Mutual control of the electricity and magnetism in terms of magnetic (H) and electric (E) fields, the magnetoelectric (ME) effect, offers versatile low power-consumption alternativ…
Magnetoelectric memory function with optical readout
Vilmos Kocsis, Karlo Penc, Toomas Rõõm +8
The ultimate goal of multiferroic research is the development of new-generation non-volatile memory devices, the so-called magnetoelectric (ME) memories, where magnetic bits are co…
Magnetic resonances of multiferroic TbFe(BO)
Dávid Szaller, Vilmos Kocsis, Sándor Bordács +6
Low-energy magnetic excitations of the easy-axis antiferromagnet TbFe(BO) are investigated by far-infrared absorption and reflection spectroscopy in high magnetic field…