Zobrazeno 1 - 10
of 1 047
pro vyhledávání: '"MAŠEK, J."'
Autor:
Železný, J., Gao, H., Manchon, Aurélien, Freimuth, Frank, Mokrousov, Yuriy, Zemen, J., Mašek, J., Sinova, Jairo, Jungwirth, T.
One of the main obstacles that prevents practical applications of antiferromagnets is the difficulty of manipulating the magnetic order parameter. Recently, following the theoretical prediction [J. \v{Z}elezn\'y et al., PRL 113, 157201 (2014)], the e
Externí odkaz:
http://arxiv.org/abs/1604.07590
Autor:
Zelezny, J., Gao, H., Vyborny, K., Zemen, J., Masek, J., Manchon, A., Wunderlich, J., Sinova, J., Jungwirth, T.
Publikováno v:
Phys. Rev. Lett. 113, 157201 (2014)
We predict that a lateral electrical current in antiferromagnets can induce non-equilibrium N\'eel order fields, i.e. fields whose sign alternates between the spin sublattices, which can trigger ultra-fast spin-axis reorientation. Based on microscopi
Externí odkaz:
http://arxiv.org/abs/1410.8296
Autor:
Wadley, P., Novák, V., Campion, R. P., Rinaldi, C., Martí, X., Reichlová, H., Zelezný, J., Gazquez, J., Roldan, M. A., Varela, M., Khalyavin, D., Langridge, S., Kriegner, D., Máca, F., Masek, J., Bertacco, R., Holy, V., Rushforth, A. W., Edmonds, K. W., Gallagher, B. L., Foxon, C. T., Wunderlich, J., Jungwirth, T.
Publikováno v:
Nat. Commun. 4:2322
Recent studies have demonstrated the potential of antiferromagnets as the active component in spintronic devices. This is in contrast to their current passive role as pinning layers in hard disk read heads and magnetic memories. Here we report the ep
Externí odkaz:
http://arxiv.org/abs/1402.3624
An empirical multiorbital (spd) tight binding (TB) model including magnetism and spin-orbit coupling is applied to calculations of magnetic anisotropy energy (MAE) in CoPt L1_0 structure. A realistic Slater-Koster parametrisation for single-element t
Externí odkaz:
http://arxiv.org/abs/1301.5369
Autor:
Maca, F., Masek, J., Stelmakhovych, O., Marti, X., Uhlirova, K., Beran, P., Reichlova, H., Wadley, P., Novak, V., Jungwirth, T.
We report on a theoretical and experimental study of CuMn-V antiferromagnets. Previous works showed low-temperature antiferomagnetism and semimetal electronic structure of the semi-Heusler CuMnSb. In this paper we present theoretical predictions of h
Externí odkaz:
http://arxiv.org/abs/1102.5373
Autor:
Kopecky, M., Kub, J., Maca, F., Masek, J., Pacherova, O., Gallagher, B. L., Campion, R. P., Novak, V., Jungwirth, T.
We report high resolution x-ray diffraction measurements of (Ga,Mn)As and (Ga,Mn)(As,P) epilayers. We observe a structural anisotropy in the form of stacking faults which are present in the (111) and (11-1) planes and absent in the (-111) and (1-11)
Externí odkaz:
http://arxiv.org/abs/1012.4690
Autor:
Masek, J., Maca, F., Kudrnovsky, J., Makarovsky, O., Eaves, L., Campion, R. P., Edmonds, K. W., Rushforth, A. W., Foxon, C. T., Gallagher, B. L., Novak, V., Sinova, Jairo, Jungwirth, T.
We analyze microscopically the valence and impurity band models of ferromagnetic (Ga,Mn)As. We find that the tight-binding Anderson approach with conventional parameterization and the full potential LDA+U calculations give a very similar picture of s
Externí odkaz:
http://arxiv.org/abs/1007.4704
Autor:
Jungwirth, T., Horodyska, P., Tesarova, N., Nemec, P., Subrt, J., Maly, P., Kuzel, P., Kadlec, C., Masek, J., Nemec, I., Novak, V., Olejnik, K., Soban, Z., Vasek, P., Svoboda, P., Sinova, Jairo
We report on a systematic study of optical properties of (Ga,Mn)As epilayers spanning the wide range of accessible substitutional Mn_Ga dopings. The growth and post-growth annealing procedures were optimized for each nominal Mn doping in order to obt
Externí odkaz:
http://arxiv.org/abs/1007.4708
Autor:
Jungwirth, T., Novak, V., Marti, X., Cukr, M., Maca, F., Shick, A. B., Masek, J., Horodyska, P., Nemec, P., Holy, V., Zemek, J., Kuzel, P., Nemec, I., Gallagher, B. L., Campion, R. P., Foxon, C. T., Wunderlich, J.
After decades of research, the low Curie temperature of ferromagnetic semiconductors remains the key problem in the development of magnetic semiconductor spintronic technologies. Removing this roadblock might require a change of the field's basic mat
Externí odkaz:
http://arxiv.org/abs/1007.0177
Autor:
Olejnik, K., Owen, M. H. S., Novak, V., Masek, J., Irvine, A. C., Wunderlich, J., Jungwirth, T.
(Ga,Mn)As and related diluted magnetic semiconductors play a major role in spintronics research because of their potential to combine ferromagnetism and semiconducting properties in one physical system. Ferromagnetism requires ~1-10% of substitutiona
Externí odkaz:
http://arxiv.org/abs/0802.2080