@article{MTMT:33836337,
	title = {Novel manufacturing method for highly flexible poly(lactic acid) foams and ferroelectrets},
	url = {https://m2.mtmt.hu/api/publication/33836337},
	author = {Vadas, Dániel and Bordácsné Bocz, Katalin and Igricz, Tamás and Volk, János and Bordács, Sándor and Madarász, Lajos and Marosi, György},
	doi = {10.1016/j.aiepr.2023.03.005},
	journal-iso = {ADV INDUST ENGIN POLYMER RES},
	journal = {ADVANCED INDUSTRIAL AND ENGINEERING POLYMER RESEARCH},
	unique-id = {33836337},
	issn = {2542-5048},
	abstract = {Poly (lactic acid) (PLA) foams have demonstrated a high variety of functional characteristics, still, the rigidity of this cellular material remains a major limiting factor when it comes to implementation options. In this contribution, PLA foams with outstanding flexibility were created for the first time by a new approach of uniaxial stretching and immediate relaxation following supercritical CO2-assisted extrusion foaming. Instead of improving the resilience of the PLA raw material, structural elasticity of the foam was achieved via altering the deformation mechanism from cell wall collapse or rupture towards reversible and extensive flexural strain. In addition, PLA foams with excellent piezoelectric properties were also achieved via high-voltage corona poling, giving additional function to the lens-like anisotropic foam cells. This foaming technology creates the opportunity to produce PLA piezoelectrets in a way entirely different from the state-of-the-art methods. Correlation between the tensile as well as compression elongations and moduli, cell morphology and longitudinal piezoelectric coefficients (d33) of electretized foam samples were studied. Unprecedented reversible tensile elongations of up to 16% and total elongations of up to 35% were reached, as well as considerable d33 values in the range of 50–320 pC/N were obtained for PLA ferroelectrets.},
	year = {2024},
	orcid-numbers = {Volk, János/0000-0003-3633-6190; Bordács, Sándor/0000-0003-0420-5997; Marosi, György/0000-0002-4774-2023}
}

@article{MTMT:33548398,
	title = {Analysis of malaria infection byproducts with Mueller matrix transmission ellipsometry},
	url = {https://m2.mtmt.hu/api/publication/33548398},
	author = {Basa, Péter and Fodor, B. and Nagy, Zs. and Oyunbolor, B. and Hajtman, A. and Bordács, Sándor and Kézsmárki, István and Halbritter, András Ernő and Orbánová, Agnesa},
	doi = {10.1016/j.tsf.2022.139637},
	journal-iso = {THIN SOLID FILMS},
	journal = {THIN SOLID FILMS},
	volume = {766},
	unique-id = {33548398},
	issn = {0040-6090},
	abstract = {In this work, hemozoin, a microcrystalline byproduct of the malaria parasites was studied by transmission Mueller matrix ellipsometry. Measurement data was collected for different magnetic field orientations and as a function of the density of the hemozoin suspension. Our ellipsometric study demonstrates the magnetic alignment of the hemozoin crystals via the corresponding large linear birefringence and dichroism signals. These results reveal optical anisotropies of this material, which could be utilized for future optimization of detection schemes or optical instruments for diagnostic use.},
	keywords = {IRON; Environment; Materials Science, Multidisciplinary; Physics, Applied; Materials Science, Coatings & Films},
	year = {2023},
	eissn = {1879-2731},
	orcid-numbers = {Basa, Péter/0000-0003-1317-1709; Bordács, Sándor/0000-0003-0420-5997; Halbritter, András Ernő/0000-0003-4837-9745}
}

@article{MTMT:33644692,
	title = {Magnetic structure of the two-dimensional XY antiferromagnet Sr2CoSi2 O7 studied using single-crystal neutron diffraction},
	url = {https://m2.mtmt.hu/api/publication/33644692},
	author = {Dutta, Rajesh and Thoma, Henrik and Sazonov, Andrew and Náfrádi, Bálint and Meven, Martin and Gukasov, Arsen and Kocsis, Vilmos and Zeitler, Uli and Puri, Alessandro and Tokunaga, Yusuke and Taguchi, Yasujiro and Tokura, Yoshinori and Bordács, Sándor and Kézsmárki, István and Hutanu, Vladimir},
	doi = {10.1103/PhysRevB.107.014420},
	journal-iso = {PHYS REV B},
	journal = {PHYSICAL REVIEW B},
	volume = {107},
	unique-id = {33644692},
	issn = {2469-9950},
	year = {2023},
	eissn = {2469-9969},
	orcid-numbers = {Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:33644684,
	title = {Spin-Lattice and Magnetoelectric Couplings Enhanced by Orbital Degrees of Freedom in Polar Multiferroic Semiconductors},
	url = {https://m2.mtmt.hu/api/publication/33644684},
	author = {Kocsis, V. and Tokunaga, Y. and Rõõm, T. and Nagel, U. and Fujioka, J. and Taguchi, Y. and Tokura, Y. and Bordács, Sándor},
	doi = {10.1103/PhysRevLett.130.036801},
	journal-iso = {PHYS REV LETT},
	journal = {PHYSICAL REVIEW LETTERS},
	volume = {130},
	unique-id = {33644684},
	issn = {0031-9007},
	year = {2023},
	eissn = {1079-7114},
	orcid-numbers = {Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:34039687,
	title = {Nodal-line resonance generating the giant anomalous Hall effect of Co 3 Sn 2 S 2},
	url = {https://m2.mtmt.hu/api/publication/34039687},
	author = {Schilberth, F. and Jiang, M.-C. and Minami, S. and Kassem, M. A. and Mayr, F. and Koretsune, T. and Tabata, Y. and Waki, T. and Nakamura, H. and Guo, G.-Y. and Arita, R. and Kézsmárki, I. and Bordács, Sándor},
	doi = {10.1103/PhysRevB.107.214441},
	journal-iso = {PHYS REV B},
	journal = {PHYSICAL REVIEW B},
	volume = {107},
	unique-id = {34039687},
	issn = {2469-9950},
	year = {2023},
	eissn = {2469-9969},
	orcid-numbers = {Schilberth, F./0000-0003-3019-8575; Jiang, M.-C./0000-0003-1816-4938; Minami, S./0000-0002-2852-3503; Kassem, M. A./0000-0001-8871-6078; Mayr, F./0009-0007-0137-5313; Waki, T./0000-0002-3294-9814; Arita, R./0000-0001-5725-072X; Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:34069706,
	title = {Broadband magnetic resonance spectroscopy in MnSc2S4},
	url = {https://m2.mtmt.hu/api/publication/34069706},
	author = {Tóth, Boglárka and Amelin, K. and Rõõm, T. and Nagel, U. and Bauernfeind, A. and Tsurkan, V. and Prodan, L. and Krug, von Nidda H.-A. and Scheffler, M. and Kézsmárki, I. and Bordács, Sándor},
	doi = {10.1038/s41598-023-37911-6},
	journal-iso = {SCI REP},
	journal = {SCIENTIFIC REPORTS},
	volume = {13},
	unique-id = {34069706},
	issn = {2045-2322},
	abstract = {Recent neutron scattering experiments suggested that frustrated magnetic interactions give rise to antiferromagnetic spiral and fractional skyrmion lattice phases in MnSc2S4. Here, to trace the signatures of these modulated phases, we studied the spin excitations of MnSc2S4 by THz spectroscopy at 300 mK and in magnetic fields up to 12 T and by broadband microwave spectroscopy at various temperatures up to 50 GHz. We found a single magnetic resonance with frequency linearly increasing in field. The small deviation of the Mn2+ ion g-factor from 2, g = 1.96, and the absence of other resonances imply very weak anisotropies and negligible contribution of higher harmonics to the spiral state. The significant difference between the dc magnetic susceptibility and the lowest frequency ac susceptibility in our experiment implies the existence of mode(s) outside of the measured frequency windows. The combination of THz and microwave experiments suggests a spin gap opening below the ordering temperature between 50 GHz and 100 GHz.},
	keywords = {LIQUID; ELECTRON-SPIN-RESONANCE},
	year = {2023},
	eissn = {2045-2322},
	orcid-numbers = {Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:32775065,
	title = {Squeezing the periodicity of Néel-type magnetic modulations by enhanced Dzyaloshinskii-Moriya interaction of 4d electrons},
	url = {https://m2.mtmt.hu/api/publication/32775065},
	author = {Butykai, Ádám and Geirhos, K. and Szaller, Dávid and Kiss, László Ferenc and Balogh, L. and Azhar, M. and Garst, M. and DeBeer-Schmitt, L. and Waki, T. and Tabata, Y. and Nakamura, H. and Kézsmárki, I. and Bordács, Sándor},
	doi = {10.1038/s41535-022-00432-y},
	journal-iso = {NPJ QUANTUM MATER},
	journal = {NPJ QUANTUM MATERIALS},
	volume = {7},
	unique-id = {32775065},
	abstract = {In polar magnets, such as GaV4S8, GaV4Se8 and VOSe2O5, modulated magnetic phases namely the cycloidal and the Néel-type skyrmion lattice states were identified over extended temperature ranges, even down to zero Kelvin. Our combined small-angle neutron scattering and magnetization study shows the robustness of the Néel-type magnetic modulations also against magnetic fields up to 2 T in the polar GaMo4S8. In addition to the large upper critical field, enhanced spin-orbit coupling stabilize cycloidal, Néel skyrmion lattice phases with sub-10 nm periodicity and a peculiar distribution of the magnetic modulation vectors. Moreover, we detected an additional single-q state not observed in any other polar magnets. Thus, our work demonstrates that non-centrosymmetric magnets with 4d and 5d electron systems may give rise to various highly compressed modulated states.},
	year = {2022},
	eissn = {2397-4648},
	orcid-numbers = {Szaller, Dávid/0000-0003-4451-118X; Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:33106237,
	title = {Magneto-optical detection of topological contributions to the anomalous Hall effect in a kagome ferromagnet},
	url = {https://m2.mtmt.hu/api/publication/33106237},
	author = {F., Schilberth and N., Unglert and L., Prodan and F., Meggle and J., Ebad Allah and C. A., Kuntscher and A. A., Tsirlin and V., Tsurkan and J., Deisenhofer and L., Chioncel and I., Kézsmárki and Bordács, Sándor},
	doi = {10.1103/PhysRevB.106.144404},
	journal-iso = {PHYS REV B},
	journal = {PHYSICAL REVIEW B},
	volume = {106},
	unique-id = {33106237},
	issn = {2469-9950},
	abstract = {A single ferromagnetic kagome layer is predicted to realize a Chern insulator with quantized Hall conductance, which upon stacking can become a Weyl semimetal with a large anomalous Hall effect (AHE) and magnetooptical activity. Indeed, in the kagome bilayer material Fe3Sn2, a large AHE was detected. In order to directly probe the responsible band structure features, we measure the optical Hall conductivity spectra in addition to the diagonal optical conductivity over a broad frequency range. Since the former is the energy selective measure of the intrinsic contributions to the AHE, we identify their common origin with the help of momentum- and banddecomposed optical conductivity spectra obtained from first principles calculations. We find that low-energy transitions, tracing "helical volumes" in momentum space reminiscent of the formerly predicted helical nodal lines, substantially contribute to the AHE, which is further increased by contributions from multiple higherenergy interband transitions. Our study also reveals that in this kagome magnet, local Coulomb interactions lead to remarkable band reconstructions near the Fermi level.},
	year = {2022},
	eissn = {2469-9969},
	orcid-numbers = {Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:33189817,
	title = {Terahertz spectroscopy of spin excitations in magnetoelectric LiFePO4 in high magnetic fields},
	url = {https://m2.mtmt.hu/api/publication/33189817},
	author = {Peedu, L. and Kocsis, V. and Szaller, Dávid and Forrai, B. and Bordács, Sándor and Kézsmárki, István and Viirok, J. and Nagel, U. and Bernáth, B. and Kamenskyi, D.L. and Miyata, A. and Portugall, O. and Tokunaga, Y. and Tokura, Y. and Taguchi, Y. and Rõõm, T.},
	doi = {10.1103/PhysRevB.106.134413},
	journal-iso = {PHYS REV B},
	journal = {PHYSICAL REVIEW B},
	volume = {106},
	unique-id = {33189817},
	issn = {2469-9950},
	year = {2022},
	eissn = {2469-9969},
	orcid-numbers = {Szaller, Dávid/0000-0003-4451-118X; Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:32647202,
	title = {Confirming the trilinear form of the optical magnetoelectric effect in the polar honeycomb antiferromagnet Co2Mo3O8},
	url = {https://m2.mtmt.hu/api/publication/32647202},
	author = {Reschke, S. and Farkas, Dániel Gergely and Strinic, A. and Ghara, S. and Guratinder, K. and Zaharko, O. and Prodan, L. and Tsurkan, V. and Szaller, Dávid and Bordács, Sándor and Deisenhofer, J. and Kézsmárki, I.},
	doi = {10.1038/s41535-021-00417-3},
	journal-iso = {NPJ QUANTUM MATER},
	journal = {NPJ QUANTUM MATERIALS},
	volume = {7},
	unique-id = {32647202},
	year = {2022},
	eissn = {2397-4648},
	orcid-numbers = {Szaller, Dávid/0000-0003-4451-118X; Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:32526224,
	title = {Selection rules and dynamic magnetoelectric effect of the spin waves in multiferroic BiFe O3},
	url = {https://m2.mtmt.hu/api/publication/32526224},
	author = {Farkas, Dániel Gergely and Szaller, Dávid and Kézsmárki, István and Nagel, U. and Rõõm, T. and Peedu, L. and Viirok, J. and White, J.S. and Cubitt, R. and Ito, T. and Fishman, R.S. and Bordács, Sándor},
	doi = {10.1103/PhysRevB.104.174429},
	journal-iso = {PHYS REV B},
	journal = {PHYSICAL REVIEW B},
	volume = {104},
	unique-id = {32526224},
	issn = {2469-9950},
	abstract = {We report the magnetic-field dependence of the THz absorption and nonreciprocal directional dichroism spectra of BiFeO3 measured on the three principal crystal cuts for fields applied along the three principal directions of each cut. From the systematic study of the light polarization dependence, we deduced the optical selection rules of the spin-wave excitations. Our THz data, combined with small-angle neutron scattering results showed that (i) an in-plane magnetic field rotates the q vectors of the cycloids perpendicular to the magnetic field and (ii) the selection rules are mostly determined by the orientation of the q vector with respect to the electromagnetic fields. We observed a magnetic field history-dependent change in the strength and the frequency of the spin-wave modes, which we attributed to the change of the orientation and the length of the cycloidal q vector, respectively. Finally, we compared our experimental data with the results of linear spin-wave theory that reproduces the magnetic-field dependence of the spin-wave frequencies and most of the selection rules, from which we identified the spin-polarization coupling terms relevant for the optical magnetoelectric effect. © 2021 American Physical Society.},
	keywords = {Binary alloys; magnetic fields; MAGNETIC-FIELD; Electromagnetic Fields; neutron scattering; Terahertz waves; Systematic study; Selection rules; SPIN POLARIZATION; Spin waves; MULTIFERROICS; Magnetic field dependences; nonreciprocal; polarization dependence; Principal directions; Dichroism spectrum; Q-vector},
	year = {2021},
	eissn = {2469-9969},
	orcid-numbers = {Szaller, Dávid/0000-0003-4451-118X; Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:32466603,
	title = {In Situ Electric-Field Control of THz Nonreciprocal Directional Dichroism in the Multiferroic Ba2CoGe2O7},
	url = {https://m2.mtmt.hu/api/publication/32466603},
	author = {Vit, Jakub and Viirok, J and Peedu, L and Room, T and Nagel, U and Kocsis, V and Tokunaga, Y and Taguchi, Y and Tokura, Y and Kezsmarki, I and Balla, Péter and Penc, Karlo and Romhanyi, J and Bordács, Sándor},
	doi = {10.1103/PhysRevLett.127.157201},
	journal-iso = {PHYS REV LETT},
	journal = {PHYSICAL REVIEW LETTERS},
	volume = {127},
	unique-id = {32466603},
	issn = {0031-9007},
	abstract = {Nonreciprocal directional dichroism, also called the optical-diode effect, is an appealing functional property inherent to the large class of noncentrosymmetric magnets. However, the in situ electric control of this phenomenon is challenging as it requires a set of conditions to be fulfilled: Special symmetries of the magnetic ground state, spin excitations with comparable magnetic- and electric-dipole activity, and switchable electric polarization. We demonstrate the isothermal electric switch between domains of Ba2CoGe2O7 possessing opposite magnetoelectric susceptibilities. Combining THz spectroscopy and multiboson spin-wave analysis, we show that unbalancing the population of antiferromagnetic domains generates the nonreciprocal light absorption of spin excitations.},
	keywords = {ROTATION},
	year = {2021},
	eissn = {1079-7114},
	orcid-numbers = {Penc, Karlo/0000-0002-2197-1370; Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:31454120,
	title = {Macroscopic manifestation of domain-wall magnetism and magnetoelectric effect in a Neel-type skyrmion host},
	url = {https://m2.mtmt.hu/api/publication/31454120},
	author = {Geirhos, Korbinian and Gross, Boris and Szigeti, Bertalan G. and Mehlin, Andrea and Philipp, Simon and White, Jonathan S. and Cubitt, Robert and Widmann, Sebastian and Ghara, Somnath and Lunkenheimer, Peter and Tsurkan, Vladimir and Neuber, Erik and Ivaneyko, Dmytro and Milde, Peter and Eng, Lukas M. and Leonov, Andrey O. and Bordács, Sándor and Poggio, Martino and Kezsmarki, Istvan},
	doi = {10.1038/s41535-020-0247-z},
	journal-iso = {NPJ QUANTUM MATER},
	journal = {NPJ QUANTUM MATERIALS},
	volume = {5},
	unique-id = {31454120},
	abstract = {We report a magnetic state in GaV(4)Se(8)which emerges exclusively in samples with mesoscale polar domains and not in polar mono-domain crystals. It is manifested by a sharp anomaly in the magnetic susceptibility and the magnetic torque, distinct from other anomalies observed also in polar mono-domain samples upon transitions between the cycloidal, the Neel-type skyrmion lattice and the ferromagnetic states. We ascribe this additional transition to the transformation of distinct magnetic textures, confined to polar domain walls (DW), to the ferromagnetic (FM) state. The emergence of these DW-confined magnetic states is likely driven by the mismatch of different spin spirals, hosted by the adjacent domains. A clear anomaly in the magneto-current indicates that the DW-confined magnetic states also have strong contributions to the magnetoelectric response. We expect polar DWs to commonly host such confined magnetic edge states and, thus, offer a fertile ground to explore novel forms of magnetism.},
	year = {2020},
	eissn = {2397-4648},
	orcid-numbers = {Lunkenheimer, Peter/0000-0002-4525-1394; Bordács, Sándor/0000-0003-0420-5997; Poggio, Martino/0000-0002-5327-051X}
}

@article{MTMT:31847276,
	title = {Stability of Neel-type skyrmion lattice against oblique magnetic fields in GaV4S8 and GaV4Se8},
	url = {https://m2.mtmt.hu/api/publication/31847276},
	author = {Gross, B and Philipp, S and Geirhos, K and Mehlin, A and Bordács, Sándor and Tsurkan, V and Leonov, A and Kezsmarki, I and Poggio, M},
	doi = {10.1103/PhysRevB.102.104407},
	journal-iso = {PHYS REV B},
	journal = {PHYSICAL REVIEW B},
	volume = {102},
	unique-id = {31847276},
	issn = {2469-9950},
	year = {2020},
	eissn = {2469-9969},
	orcid-numbers = {Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:31785829,
	title = {Magnetoelastic distortion of multiferroic BiFeO3 in the canted antiferromagnetic state},
	url = {https://m2.mtmt.hu/api/publication/31785829},
	author = {Rõõm, T. and Viirok, J. and Peedu, L. and Nagel, U. and Farkas, Dániel Gergely and Szaller, Dávid and Kocsis, V. and Bordács, Sándor and Kézsmárki, I. and Kamenskyi, D. L. and Engelkamp, H. and Ozerov, M. and Smirnov, D. and Krzystek, J. and Thirunavukkuarasu, K. and Ozaki, Y. and Tomioka, Y. and Ito, T. and Datta, T. and Fishman, R. S.},
	doi = {10.1103/PhysRevB.102.214410},
	journal-iso = {PHYS REV B},
	journal = {PHYSICAL REVIEW B},
	volume = {102},
	unique-id = {31785829},
	issn = {2469-9950},
	year = {2020},
	eissn = {2469-9969},
	orcid-numbers = {Rõõm, T./0000-0002-6165-8290; Nagel, U./0000-0001-5827-9495; Szaller, Dávid/0000-0003-4451-118X; Bordács, Sándor/0000-0003-0420-5997; Engelkamp, H./0000-0001-9920-0536; Krzystek, J./0000-0001-6088-1936; Datta, T./0000-0003-0910-8328}
}

@article{MTMT:31739638,
	title = {Magnetic anisotropy and exchange paths for octahedrally and tetrahedrally coordinated Mn2+ ions in the honeycomb multiferroic Mn2Mo3O8},
	url = {https://m2.mtmt.hu/api/publication/31739638},
	author = {Szaller, Dávid and Szász, Krisztián and Bordács, Sándor and Viirok, J and Room, T and Nagel, U and Shuvaev, A and Weymann, L and Pimenov, A and Tsirlin, AA and Jesche, A and Prodan, L and Tsurkan, V and Kezsmarki, I},
	doi = {10.1103/PhysRevB.102.144410},
	journal-iso = {PHYS REV B},
	journal = {PHYSICAL REVIEW B},
	volume = {102},
	unique-id = {31739638},
	issn = {2469-9950},
	year = {2020},
	eissn = {2469-9969},
	orcid-numbers = {Szaller, Dávid/0000-0003-4451-118X; Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:30857527,
	title = {Limits of validity of the Rashba model in BiTeI: High-field magneto-optical study},
	url = {https://m2.mtmt.hu/api/publication/30857527},
	author = {Bordács, Sándor and Orlita, M. and Sikula, M. and Murakawa, H. and Tokura, Y.},
	doi = {10.1103/PhysRevB.100.155203},
	journal-iso = {PHYS REV B},
	journal = {PHYSICAL REVIEW B},
	volume = {100},
	unique-id = {30857527},
	issn = {2469-9950},
	abstract = {It was recently shown that BiTeI, a semiconductor with polar crystal structure, possesses a giant spin splitting of electrons, which has been interpreted in terms of Rashba-type spin-orbit coupling. Here we use high field magneto-optical spectroscopy to quantify the deviations of the conduction-band profile from this appealing, but at the same time, strongly simplifying model. We find that the optical response-comprising a series of inter-Landau level excitations-can be described by the Rashba model only at low magnetic fields. In contrast, the high-field response appears to be more consistent with a simple picture of massless electrons in a conical band. This points towards more linear rather than parabolic dispersion at energies well above the bottom of the conduction band.},
	year = {2019},
	eissn = {2469-9969},
	orcid-numbers = {Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:31052612,
	title = {Magnetoelectric spectroscopy of spin excitations in LiCoPO4},
	url = {https://m2.mtmt.hu/api/publication/31052612},
	author = {Kocsis, V and Bordács, Sándor and Tokunaga, Y. and Viirok, J. and Peedu, L. and Room, T. and Nagel, U. and Taguchi, Y. and Tokura, Y. and Kezsmarki, I},
	doi = {10.1103/PhysRevB.100.155124},
	journal-iso = {PHYS REV B},
	journal = {PHYSICAL REVIEW B},
	volume = {100},
	unique-id = {31052612},
	issn = {2469-9950},
	abstract = {We have studied spin excitations in a single-domain crystal of antiferromagnetic LiCoPO4 by terahertz absorption spectroscopy. By analyzing the selection rules and comparing the strengths of the absorption peaks in the different antiferromagnetic domains, we found electromagnons and magnetoelectric (ME) spin resonances in addition to conventional magnetic dipole active spin-wave excitations. Using the sum rule for the ME susceptibility, we determined the contribution of the spin excitations to all the different off-diagonal elements of the static ME susceptibility tensor in zero and finite magnetic fields. We conclude that the ME spin resonances are responsible for the static ME response of the bulk when the magnetic field is along the x axis, and the symmetric part of the ME tensor with zero diagonal elements dominates over the antisymmetric components.},
	year = {2019},
	eissn = {2469-9969},
	orcid-numbers = {Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:30443710,
	title = {Microwave Directional Dichroism Resonant with Spin Excitations in the Polar Ferromagnet GaV 4 S 8},
	url = {https://m2.mtmt.hu/api/publication/30443710},
	author = {Okamura, Y. and Seki, S. and Bordács, Sándor and Butykai, Ádám and Tsurkan, V. and Kézsmárki, István and Tokura, Y.},
	doi = {10.1103/PhysRevLett.122.057202},
	journal-iso = {PHYS REV LETT},
	journal = {PHYSICAL REVIEW LETTERS},
	volume = {122},
	unique-id = {30443710},
	issn = {0031-9007},
	year = {2019},
	eissn = {1079-7114},
	orcid-numbers = {Bordács, Sándor/0000-0003-0420-5997}
}

@article{MTMT:30746420,
	title = {Optically Driven Collective Spin Excitations and Magnetization Dynamics in the Néel-type Skyrmion Host GaV 4 S 8},
	url = {https://m2.mtmt.hu/api/publication/30746420},
	author = {Padmanabhan, P. and Sekiguchi, F. and Versteeg, R. B. and Slivina, E. and Tsurkan, V. and Bordács, Sándor and Kézsmárki, István and van Loosdrecht, P. H. M.},
	doi = {10.1103/PhysRevLett.122.107203},
	journal-iso = {PHYS REV LETT},
	journal = {PHYSICAL REVIEW LETTERS},
	volume = {122},
	unique-id = {30746420},
	issn = {0031-9007},
	year = {2019},
	eissn = {1079-7114},
	orcid-numbers = {Bordács, Sándor/0000-0003-0420-5997}
}