Zobrazeno 1 - 6
of 6
pro vyhledávání: '"D. G. Farkas"'
Autor:
S. Reschke, D. G. Farkas, A. Strinić, S. Ghara, K. Guratinder, O. Zaharko, L. Prodan, V. Tsurkan, D. Szaller, S. Bordács, J. Deisenhofer, I. Kézsmárki
Publikováno v:
npj Quantum Materials, Vol 7, Iss 1, Pp 1-7 (2022)
Abstract Magnetoelectric phenomena are intimately linked to relativistic effects and also require the material to break spatial inversion symmetry and time-reversal invariance. Magnetoelectric coupling can substantially affect light–matter interact
Externí odkaz:
https://doaj.org/article/4feb0bb481c542fe9c474c2ca3b1776b
Autor:
Urmas Nagel, L. Peedu, D. G. Farkas, István Kézsmárki, Robert Cubitt, Randy Scott Fishman, Toshimitsu Ito, J. Viirok, Toomas Rõõm, Jonathan S. White, Sándor Bordács, D. Szaller
We report the magnetic field dependence of the THz absorption and non-reciprocal directional dichroism spectra of BiFeO$_3$ measured on the three principal crystal cuts for fields applied along the three principal directions of each cut. From the sys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19a68641da0963450f9fa031bbf95d6d
Autor:
Vilmos Kocsis, D. Kamenskyi, István Kézsmárki, Yasuhide Tomioka, Dmitry Smirnov, Toshimitsu Ito, D. Szaller, Trinanjan Datta, J. Krzystek, Hans Engelkamp, Komalavalli Thirunavukkuarasu, L. Peedu, Toomas Rõõm, Y. Ozaki, J. Viirok, D. G. Farkas, Randy Scott Fishman, Sándor Bordács, Urmas Nagel, Mykhaylo Ozerov
Publikováno v:
Physical Review B, 102, 21, pp. 1-8
Physical Review B, 102, 1-8
Physical Review B, 102, 1-8
Using THz spectroscopy, we show that the spin-wave spectrum of multiferroic BiFeO$_3$ in its high-field canted antiferromagnetic state is well described by a spin model that violates rhombohedral symmetry. We demonstrate that the monoclinic distortio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb64d44bb960d2c61e0e87171c147543
Autor:
Vilmos Kocsis, J. Viirok, Yasujiro Taguchi, István Kézsmárki, Yusuke Tokunaga, Karlo Penc, Y. Tokura, D. Kamenskyi, B. Bernáth, D. G. Farkas, Sándor Bordács, P. Balla, Toomas Rõõm, D. Szaller, Urmas Nagel
Publikováno v:
Physical Review B. 99
The coexisting magnetic and ferroelectric orders in multiferroic materials give rise to a handful of novel magnetoelectric phenomena, such as the absorption difference for the opposite propagation directions of light called the nonreciprocal directio
Autor:
István Kézsmárki, Toomas Rõõm, Vilmos Kocsis, J. Viirok, D. G. Farkas, L. Peedu, Uli Zeitler, Y. Tokura, Yusuke Tokunaga, D. Szaller, Yasujiro Taguchi, Urmas Nagel, D. Kamenskyi, Sándor Bordács
Publikováno v:
Physical Review B, 100
Physical Review B, 100, 2
Physical Review B, 100, 2
Spin excitations of magnetoelectric LiNiPO4 are studied by infrared absorption spectroscopy in the THz spectral range as a function of magnetic field through various commensurate and incommensurate magnetically ordered phases up to 33 T. Six spin res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d36f8b082a0b45adb8d8a8d12ae5179
http://hdl.handle.net/2066/206115
http://hdl.handle.net/2066/206115
Autor:
Toshimitsu Ito, István Kézsmárki, Lisa DeBeer-Schmitt, Jonathan S. White, Sándor Bordács, D. G. Farkas, Robert Cubitt
Publikováno v:
Physical review letters. 120(14)
The magnetic field induced rearrangement of the cycloidal spin structure in ferroelectric monodomain single crystals of the room-temperature multiferroic ${\mathrm{BiFeO}}_{3}$ is studied using small-angle neutron scattering. The cycloid propagation