Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Peedu, Laur"'
Autor:
Pilch, Patrick, Peedu, Laur, Bera, Anup Kumar, Yusuf, S. M., Nagel, Urmas, Rõõm, Toomas, Wang, Zhe
Publikováno v:
Phys. Rev. B 108, L140406 (2023)
We report terahertz spectroscopic measurements of quantum spin dynamics in the spin-1/2 honeycomb magnet Na$_2$Co$_2$TeO$_6$ as a function of applied magnetic field with different terahertz polarizations. Distinct field dependencies of the resolved s
Externí odkaz:
http://arxiv.org/abs/2308.00631
Autor:
Kocsis, Vilmos, Bordács, Sándor, Tokunaga, Yusuke, Viirok, Johan, Peedu, Laur, Rõõm, Toomas, Nagel, Urmas, Taguchi, Yasujiro, Tokura, Yoshinori, Kézsmárki, István
Publikováno v:
Phys. Rev. B 100, 155124 (2019)
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 strengths of the absorption peaks in the different antiferromagnetic domains,
Externí odkaz:
http://arxiv.org/abs/2102.00994
Autor:
Rõõm, Toomas, Viirok, Johan, Peedu, Laur, Nagel, Urmas, Farkas, Daniel G., Szaller, David, Kocsis, Vilmos, Bordács, Sandor, Kézsmárki, Istvan, Kamenskyi, Dymtro L., Engelkamp, Hans, Ozerov, Mike, Smirnov, Dmitry, Krzystek, Jurek, Thirunavukkuarasu, Komalavalli, Ozaki, Yasuko, Tomioka, Yasuhide, Ito, Toshimitsu, Datta, Trinanjan, Fishman, Randy S.
Publikováno v:
Phys. Rev. B 102, 214410 (2020)
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:
http://arxiv.org/abs/2012.09178
Autor:
Peedu, Laur, Kocsis, Vilmos, Szaller, Dávid, Viirok, Johan, Nagel, Urmas, Rõõm, Toomas, Farkas, Dániel Gergely, Bordács, Sándor, Kamenskyi, Dmytro, Zeitler, Uli, Tokunaga, Yusuke, Taguchi, Yasujiro, Tokura, Yoshinori, Kézsmárki, István
Publikováno v:
Phys. Rev. B 100, 024406 (2019)
Spin excitations of magnetoelectric LiNiPO$_4$ 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
Externí odkaz:
http://arxiv.org/abs/1904.06106