Zobrazeno 1 - 10
of 657
pro vyhledávání: '"Portugall"'
Autor:
Peedu, L., Kocsis, V., Szaller, D., Forrai, B., Bordács, S., Kézsmárki, I., Viirok, J., Nagel, U., Bernáth, B., Kamenskyi, D. L., Miyata, A., Portugall, O., Tokunaga, Y., Tokura, Y., Taguchi, Y., Rõõm, T.
We investigated the spin excitations of magnetoelectric $\text{LiFePO}_4$ by THz absorption spectroscopy in magnetic fields up to 33$\,$T. By studying their selection rules, we found not only magnetic-dipole, but also electric-dipole active (electrom
Externí odkaz:
http://arxiv.org/abs/2204.12967
Autor:
Hecker, Michael, Fitzner, Brit, Koczan, Dirk, Klehmet, Juliane, Grothe, Matthias, Schwab, Matthias, Winkelmann, Alexander, Meister, Stefanie, Dudesek, Ales, Ludwig-Portugall, Isis, Eulitz, Klaus, Zettl, Uwe Klaus
Publikováno v:
In Biomedicine & Pharmacotherapy June 2024 175
Autor:
Michael Hecker, Brit Fitzner, Nina Boxberger, Elena Putscher, Robby Engelmann, Wendy Bergmann, Michael Müller, Isis Ludwig-Portugall, Margit Schwartz, Stefanie Meister, Ales Dudesek, Alexander Winkelmann, Dirk Koczan, Uwe Klaus Zettl
Publikováno v:
Journal of Neuroinflammation, Vol 20, Iss 1, Pp 1-18 (2023)
Abstract Background Multiple sclerosis (MS) is a chronic, inflammatory and neurodegenerative disease that leads to irreversible damage to the brain and spinal cord. The goal of so-called "immune reconstitution therapies" (IRTs) is to achieve long-ter
Externí odkaz:
https://doaj.org/article/f17f465a1e9f4f1ab39b134ac143e068
Autor:
Miyata, A., Suwa, H., Nomura, T., Prodan, L., Felea, V., Skourski, Y., Deisenhofer, J., von Nidda, H. -A. Krug, Portugall, O., Zherlitsyn, S., Tsurkan, V., Wosnitza, J., Loidl, A.
Publikováno v:
Phys. Rev. B 101, 054432 (2020)
In antiferromagnets, the interplay of spin frustration and spin-lattice coupling has been extensively studied as the source of complex spin patterns and exotic magnetism. Here, we demonstrate that, although neglected in the past, the spin-lattice cou
Externí odkaz:
http://arxiv.org/abs/1911.12103
Autor:
Opherden, L., Herrmannsdörfer, T., Uhlarz, M., Gorbunov, D. I., Miyata, A., Portugall, O., Ishii, I., Suzuki, T., Kaneko, H., Suzuki, H., Wosnitza, J.
We report that the local Ising anisotropy in pyrochlore oxides - the crucial requirement for realizing the spin-ice state - can be broken by means of high magnetic fields. For the case of the well-established classical spin-ice compound Ho$_2$Ti$_2$O
Externí odkaz:
http://arxiv.org/abs/1902.02990
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
The magnetic phases of a triangular-lattice antiferromagnet, CuCrO$_2$, were investigated in magnetic fields along to the $c$ axis, $H$ // [001], up to 120 T. Faraday rotation and magneto-absorption spectroscopy were used to unveil the rich physics o
Externí odkaz:
http://arxiv.org/abs/1710.07174
Autor:
Revet, G., Chen, S. N., Bonito, R., Khiar, B., Filippov, E., Argiroffi, C., Higginson, D. P., Orlando, S., Béard, J., Blecher, M., Borghesi, M., Burdonov, K., Khaghani, D., Naughton, K., Pépin, H., Portugall, O., Riquier, R., Rodriguez, R., Ryazantsev, S. N., Skobelev, I. Yu., Soloviev, A., Willi, O., Pikuz, S., Ciardi, A., Fuchs, J.
Accretion dynamics in the forming of young stars is still object of debate because of limitations in observations and modelling. Through scaled laboratory experiments of collimated plasma accretion onto a solid in the presence of a magnetic field, we
Externí odkaz:
http://arxiv.org/abs/1708.02528
Autor:
Yang, Z., Surrente, A., Galkowski, K., Miyata, A., Portugall, O., Sutton, R. J., Haghighirad, A. A., Snaith, H. J., Maude, D. K., Plochocka, P., Nicholas, R. J.
Perovskite solar cells with record power conversion efficiency are fabricated by alloying both hybrid and fully inorganic compounds. While the basic electronic properties of the hybrid perovskites are now well understood, key electronic parameters fo
Externí odkaz:
http://arxiv.org/abs/1706.04489
Autor:
Miyata, A., Yang, Z., Surrente, A., Drachenko, O., Maude, D. K., Portugall, O., Duffy, L. B., Hesjedal, T., Plochocka, P., Nicholas, R. J.
Publikováno v:
Phys. Rev. B 96, 121111 (2017)
We have investigated the band structure at the $\Gamma$ point of the three-dimensional (3D) topological insulator Bi$_2$Se$_3$ using magneto-spectroscopy over a wide range of energies ($0.55-2.2$\,eV) and in ultrahigh magnetic fields up to 150\,T. At
Externí odkaz:
http://arxiv.org/abs/1706.00781