Zobrazeno 1 - 10
of 1 095
pro vyhledávání: '"Dürr H"'
Autor:
Turenne, D., Yaroslavtsev, A., Wang, X., Unikandanuni, V., Vaskivskyi, I., Schneider, M., Jal, E., Carley, R., Mercurio, G., Gort, R., Agarwal, N., Van Kuiken, B., Mercadier, L., Schlappa, J., Guyader, L. Le, Gerasimova, N., Teichmann, M., Lomidze, D., Castoldi, A., Potorochin, D., Mukkattukavil, D., Brock, J., Hagström, N. Z., Reid, A. H., Shen, X., Wang, X. J., Maldonado, P., Kvashnin, Y., Carva, K., Wang, J., Takahashi, Y. K., Fullerton, E. E., Eisebitt, S., Oppeneer, P. M., Molodtsov, S., Scherz, A., Bonetti, S., Iacocca, E., Dürr, H. A.
Magnetic nanoparticles such as FePt in the L10-phase are the bedrock of our current data storage technology. As the grains become smaller to keep up with technological demands, the superparamagnetic limit calls for materials with higher magneto-cryst
Externí odkaz:
http://arxiv.org/abs/2111.01649
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:
Maldonado, P., Chase, T., Reid, A. H., Shen, X., Li, R. K., Carva, K., Payer, T., von Hoegen, M. Horn, Sokolowski-Tinten, K., Wang, X. J., Oppeneer, P. M., Dürr, H. A.
Publikováno v:
Phys. Rev. B 101, 100302 (2020)
Femtosecond laser excitation of solid-state systems creates non-equilibrium hot electrons that cool down by transferring their energy to other degrees of freedom and ultimately to lattice vibrations of the solid. By combining ab initio calculations w
Externí odkaz:
http://arxiv.org/abs/1906.08504
Autor:
Iacocca, E., Liu, T-M., Reid, A. H., Fu, Z., Ruta, S., Granitzka, P. W., Jal, E., Bonetti, S., Gray, A. X., Graves, C. E., Kukreja, R., Chen, Z., Higley, D. J., Chase, T., Guyader, L. Le, Hirsch, K., Ohldag, H., Schlotter, W. F., Dakovski, G. L., Coslovich, G., Hoffmann, M. C., Carron, S., Tsukamoto, A., Savoini, M., Kirilyuk, A., Kimel, A. V., Rasing, Th., Stöhr, J., Evans, R. F. L., Ostler, T., Chantrell, R. W., Hoefer, M. A., Silva, T. J., Dürr, H. A.
Publikováno v:
Nature Communications 10, 1756 (2019)
Sub-picosecond magnetisation manipulation via femtosecond optical pumping has attracted wide attention ever since its original discovery in 1996. However, the spatial evolution of the magnetisation is not yet well understood, in part due to the diffi
Externí odkaz:
http://arxiv.org/abs/1809.02076
We demonstrate a tilted pulse-front transient grating technique that allows to optimally utilize time-resolution as well as transient grating line density while probing under grazing incidence as typically done in extreme ultraviolet (EUV) or soft x-
Externí odkaz:
http://arxiv.org/abs/1710.08817
Short electron pulses are demonstrated to trigger and control magnetic excitations, even at low electron current densities. We show that the tangential magnetic field surrounding a picosecond electron pulse can imprint topologically protected magneti
Externí odkaz:
http://arxiv.org/abs/1706.08288
Publikováno v:
AHM Reid, Th Rasing, RV Pisarev, HA D\"urr, MC Hoffmann, Appl. Phys. Lett. 106, 082403 (2015)
Terahertz driven magnetization dynamics are explored in the orthoferrite DyFeO3. A high-field, single cycle THz pulse is used to excite magnon modes in the crystal together with other resonances. Both quasi-ferromagnetic and quasi-antiferromagnetic m
Externí odkaz:
http://arxiv.org/abs/1706.01545
Autor:
Guyader, L. Le, Chase, T., Reid, A., Li, R. K., Svetin, D., Shen, X., Vecchione, T., Wang, X. J., Mihailovic, D., Dürr, H. A.
Publikováno v:
Structural Dynamics 4, 044020 (2017)
Transitions between different charge density wave (CDW) states in quasi-two-dimensional materials may be accompanied also by changes in the inter-layer stacking of the CDW. Using MeV ultrafast electron diffraction, the out-of-plane stacking order dyn
Externí odkaz:
http://arxiv.org/abs/1703.05035
Autor:
Bonetti, S., Hoffmann, M. C., Sher, M. -J., Chen, Z., Yang, S. -H., Samant, M., Parkin, S. S. P., Dürr, H. A.
Publikováno v:
Phys. Rev. Lett. 117, 087205 (2016)
We use single-cycle THz fields and the femtosecond magneto-optical Kerr effect to respectively excite and probe the magnetization dynamics in two thin-film ferromagnets with different lattice structure: crystalline Fe and amorphous CoFeB. We observe
Externí odkaz:
http://arxiv.org/abs/1604.04077
Autor:
He, Haowei, Gray, A. X., Granitzka, P., Jeong, J. W., Aetukuri, N. P., Kukreja, R., Miao, Lin, Huang, Y. B., Olalde-Velasco, P., Pelliciari, J., Schlotter, W. F., Arenholz, E., Schmitt, T., Samant, M. G., Parkin, S. S. P., Dürr, H. A., Wray, L. Andrew
Publikováno v:
Phys. Rev. B 94, 161119(R) (2016)
Vanadium dioxide is of broad interest as a spin-1/2 electron system that realizes a metal-insulator transition near room temperature, due to a combination of strongly correlated and itinerant electron physics. Here, resonant inelastic X-ray scatterin
Externí odkaz:
http://arxiv.org/abs/1603.01164