Zobrazeno 1 - 10
of 1 377
pro vyhledávání: '"Knut, R."'
Autor:
Klewe, C., Shafer, P., Shoup, J. E., Kons, C., Pogoryelov, Y., Knut, R., Gray, B. A., Jeon, H. -M., Howe, B. M., Karis, O., Suzuki, Y., Arenholz, E., Arena, D. A., Emori, S.
Publikováno v:
Appl. Phys. Lett. 122, 132401 (2023)
Many technologically useful magnetic oxides are ferrimagnetic insulators, which consist of chemically distinct cations. Here, we examine the spin dynamics of different magnetic cations in ferrimagnetic NiZnAl-ferrite (Ni$_{0.65}$Zn$_{0.35}$Al$_{0.8}$
Externí odkaz:
http://arxiv.org/abs/2302.03100
Autor:
Gupta, R., Cosco, F., Malik, R. S., Chen, X., Saha, S., Ghosh, A., Pohlmann, T., Mardegan, J. R. L., Francoual, S., Stefanuik, R., Soderstrom, J., Sanyal, B., Karis, O., Svedlindh, P., Oppeneer, P. M., Knut, R.
Using element-specific measurements of the ultrafast demagnetization of Ru/Fe$_{65}$Co$_{35}$ heterostructures, we show that Ru can exhibit a significant magnetic contrast (3% asymmetry) resulting from ultrafast spin currents emanating from the demag
Externí odkaz:
http://arxiv.org/abs/2205.07974
Autor:
Juan Vladimir de la Rosa, Carlos Tabraue, Zhiqiang Huang, Marta C. Orizaola, Patricia Martin‐Rodríguez, Knut R. Steffensen, Juan Manuel Zapata, Lisardo Boscá, Peter Tontonoz, Susana Alemany, Eckardt Treuter, Antonio Castrillo
Publikováno v:
Advanced Science, Vol 11, Iss 20, Pp n/a-n/a (2024)
Abstract Macrophages regulate essential aspects of innate immunity against pathogens. In response to microbial components, macrophages activate primary and secondary inflammatory gene programs crucial for host defense. The liver X receptors (LXRα, L
Externí odkaz:
https://doaj.org/article/0d64bc9760874725979011a9fec830ac
Autor:
Vaskivskyi, O. Grånäs I., Wang, X., Thunström, P., Ghimire, S., Knut, R., Söderström, J., Kjellsson, L., Turenne, D., Engel, R. Y., Beye, M., Lu, J., Reid, A. H., Schlotter, W., Coslovich, G., Hoffmann, M., Kolesov, G., Schüßler-Langeheine, C., Styervoyedov, A., Tancogne-Dejean, N., Sentef, M. A., Reis, D. A., Rubio, A., Parkin, S. S. P., Karis, O., Nordgren, J., Rubensson, J. -E., Eriksson, O., Dürr, H. A.
A non-trivial balance between Coulomb repulsion and kinematic effects determines the electronic structure of correlated electron materials. The use electromagnetic fields strong enough to rival these native microscopic interactions allows us to study
Externí odkaz:
http://arxiv.org/abs/2008.11115
Autor:
Malik, R. S., Delczeg-Czirjak, E. K., Thonig, D., Knut, R., Vaskivskyi, I., Gupta, R., Jana, S., Stefanuik, R., Kvashnin, Y. O., Husain, S., Kumar, A., Svedlindh, P., Söderström, J., Eriksson, O., Karis, O.
Publikováno v:
Phys. Rev. B 104, 100408 (2021)
We report on optically induced, ultrafast magnetization dynamics in the Heusler alloy $\mathrm{Co_{2}FeAl}$, probed by time-resolved magneto-optical Kerr effect. Experimental results are compared to results from electronic structure theory and atomis
Externí odkaz:
http://arxiv.org/abs/2002.12255
Autor:
Bjerre Trent, Pernille K., Nordskar, Nina Jebens, Wangen, Knut R., Engeskaug, Ms. Ida, Opheim, Ms. Linn Ø., Aune, Guro, Staff, Anne Cathrine, Thorsen, Lene, Falk, Ragnhild S., Eriksson, Ane Gerda Z.
Publikováno v:
In Gynecologic Oncology August 2023 175:72-80
Autor:
Jana, Somnath, Malik, R. S., Kvashnin, Yaroslav O., Locht, Inka L. M., Knut, R., Stefanuik, R., Di Marco, Igor, Yaresko, A. N., Ahlberg, Martina, Chimata, Raghuveer, Battiato, Marco, Söderström, Johan, Eriksson, Olle, Karis, Olof
Publikováno v:
Phys. Rev. Research 2, 013180 (2020)
The magneto-optical response of Fe and Ni during ultrafast demagnetization is studied experimentally and theoretically. We have performed pump-probe experiments in the transverse magneto-optical Kerr effect (T-MOKE) geometry using photon energies tha
Externí odkaz:
http://arxiv.org/abs/1908.02872
Autor:
Knut, R., Delczeg-Czirjak, E. K., Jana, S., Shaw, J. M., Nembach, H. T., Kvashnin, Y., Stefaniuk, R., Malik, R. S., Grychtol, P., Zusin, D., Gentry, C., Chimata, R., Pereiro, M., Söderström, J., Turgut, E., Ahlberg, M., Åkerman, J., Kapteyn, H. C., Murnane, M. M., Arena, D. A., Eriksson, O., Karis, O., Silva, T. J.
Ni$_{0.8}$Fe$_{0.2}$ (Py) and Py alloyed with Cu exhibit intriguing ultrafast demagnetization behavior, where the Ni magnetic moment shows a delayed response relative to the Fe, an effect which is strongly enhanced by Cu alloying. We have studied a b
Externí odkaz:
http://arxiv.org/abs/1810.10994
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