Results 81 to 90 of about 92,951 (162)

Hot-Electron-Induced Ultrafast Demagnetization in Co / Pt Multilayers [PDF]

, 2016
International audienceUsing specially engineered structures to tailor the optical absorption in a metallic multilayer, we analyze the magnetization dynamics of a Co=Pt multilayer buried below a thick Cu layer.
Mangin, Stéphane, Montaigne, F., Koopmans, B., Mangin, S., Malinowski, G., Hehn, M., Lengaigne, G., Bergeard, N., Lalieu, M. l. m.   +8 more
core   +1 more source

Terahertz-induced demagnetization in ferromagnets

, 2016
We experimentally demonstrate ultrafast terahertz induced demagnetization in conducting ferromagnets, Ni, Co, and Fe. At even higher excitation fluence, the materials lose their magnetic properties and then get damaged before magnetic switching takes ...
Shalaby, Mostafa, Vicario, Carlo, Hauri, Christoph P., Mostafa Shalaby, Carlo Vicario, Christoph P. Hauri   +5 more
core   +1 more source

Nanoscale Mapping of Ultrafast Magnetization Dynamics with Femtosecond Lorentz Microscopy

Physical Review X, 2018
Novel time-resolved imaging techniques for the investigation of ultrafast nanoscale magnetization dynamics are indispensable for further developments in light-controlled magnetism.
Nara Rubiano da Silva, Marcel Möller, Armin Feist, Henning Ulrichs, Claus Ropers, Sascha Schäfer   +5 more
doaj   +1 more source

Applying Machine Learning to Elucidate Ultrafast Demagnetization Dynamics in Ni and Ni80Fe20 [PDF]

Understanding the correlation between fast and ultrafast demagnetization processes is crucial for elucidating the microscopic mechanisms underlying ultrafast demagnetization, which is pivotal for various applications in spintronics.
Baghbaderani, Hasan Ahmadian, Choi, Byoung-Chul   +1 more
core   +1 more source

Swept coded aperture real-time femtophotography

Nature Communications
Single-shot real-time femtophotography is indispensable for imaging ultrafast dynamics during their times of occurrence. Despite their advantages over conventional multi-shot approaches, existing techniques confront restricted imaging speed or degraded ...
Jingdan Liu, Miguel Marquez, Yingming Lai, Heide Ibrahim, Katherine Légaré, Philippe Lassonde, Xianglei Liu, Michel Hehn, Stéphane Mangin, Grégory Malinowski, Zhengyan Li, François Légaré, Jinyang Liang   +12 more
doaj   +1 more source

Ultrafast entropy production in pump-probe experiments

Nature Communications
The ultrafast control of materials has opened the possibility to investigate non-equilibrium states of matter with striking properties, such as transient superconductivity and ferroelectricity, ultrafast magnetization and demagnetization, as well as ...
Lorenzo Caprini, Hartmut Löwen, R. Matthias Geilhufe   +2 more
doaj   +1 more source

Ultrafast demagnetization: An electronic point of view

, 2014
ISBN:978-3-033-04583 ...
openaire   +2 more sources

Control of speed and efficiency of ultrafast demagnetization by direct transfer of spin angular momentum

, 2008
Since the discovery in 1996 that the magnetization of a nickel thin film is reduced within a few picoseconds after femtosecond-laser excitation, ultrafast demagnetization has attracted a thriving interest.
F. Dalla Longa, H. J. M. Swagten, Huijink, R., Koopmans, B., P. V. Paluskar, Malinowski, G., Dalla Longa, F., R. Huijink, J. H. H. Rietjens, Swagten, H.J.M.; id_orcid, G. Malinowski, Rietjens, J.H.H., Paluskar, P.V., B. Koopmans   +13 more
core   +1 more source

Ultrafast Local Magnetization and Demagnetization in Heusler Alloys

, 2016
With the goal of pushing Spintronic devices towards faster and faster timescales, we demonstrate, using ab-intio time-dependent density functional theory simulations of bulk Heusler compounds subject to ultrashort intense laser pulses, that the local magnetic moment can increase or decrease in a few femtoseconds.
Elliott, P., Müller, T., Dewhurst, J. K., Sharma, S., Gross, E. K. U.   +4 more
openaire   +2 more sources

Fluence and Temperature Dependences of Laser-Induced Ultrafast Demagnetization and Recovery Dynamics in L1₀-FePt Thin Film. [PDF]

Materials (Basel), 2023
Xie Z, Cai Y, Tang M, Zhou J, Liu J, Peng J, Jiang T, Shi Z, Chen Z.   +8 more
europepmc   +1 more source