Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Ostler, Thomas"'
Magnetic materials host a wealth of nonlinear dynamics, textures, and topological defects. This is possible due to the competition between strong nonlinearity and dispersion that act at the atomic scale as well as long-range interactions. However, th
Externí odkaz:
http://arxiv.org/abs/2312.14068
It is widely known that antiferromagnets (AFMs) display a high frequency response in the terahertz (THz) range, which opens up the possibility for ultrafast control of their magnetization for next generation data storage and processing applications.
Externí odkaz:
http://arxiv.org/abs/2304.12969
Autor:
Hennecke, Martin, Schmising, Clemens von Korff, Yao, Kelvin, Jal, Emmanuelle, Vodungbo, Boris, Chardonnet, Valentin, Légaré, Katherine, Capotondi, Flavio, Naumenko, Denys, Pedersoli, Emanuele, Lopez-Quintas, Ignacio, Nikolov, Ivaylo P., Raimondi, Lorenzo, De Ninno, Giovanni, Salemi, Leandro, Ruta, Sergiu, Chantrell, Roy, Ostler, Thomas, Pfau, Bastian, Engel, Dieter, Oppeneer, Peter M., Eisebitt, Stefan, Radu, Ilie
Publikováno v:
Communications Physics 7, 191 (2024)
Coherent light-matter interactions mediated by opto-magnetic phenomena like the inverse Faraday effect (IFE) are expected to provide a non-thermal pathway for ultrafast manipulation of magnetism on timescales as short as the excitation pulse itself.
Externí odkaz:
http://arxiv.org/abs/2303.08564
Antiferromagnets (AFMs) are strong candidates for the future spintronic and memory applications largely because of their inherently fast dynamics and lack of stray fields, with Mn2Au being one of the most promising. For the numerical modelling of mag
Externí odkaz:
http://arxiv.org/abs/2206.08625
Autor:
Li, Guanqi, Zheng, Xiangyu, Wang, Junlin, Lu, Xianyang, Wu, Jing, Cai, Jianwang, Ostler, Thomas, Xu, Yongbing
The manipulation of the magnetic direction by using the ultrafast laser pulse is attractive for its great advantages in terms of speed and energy efficiency for information storage applications. However, the heating and helicity effects induced by ci
Externí odkaz:
http://arxiv.org/abs/2009.12816
In this work, we present evidence for the existence of a magnonic current on the sub-picosecond time-scale in a ferrimagnetic bilayer and its effect on ultrafast spin dynamics. The ferrimagnet, GdFeCo, is a material known to undergo ultrafast switchi
Externí odkaz:
http://arxiv.org/abs/2006.07935
Autor:
Jakobs, Florian, Ostler, Thomas, Lambert, Charles-Henri, Yang, Yang, Salahuddin, Sayeef, Wilson, Richard B., Gorchon, Jon, Bokor, Jeffrey, Atxitia, Unai
Publikováno v:
Phys. Rev. B 103, 104422 (2021)
Many questions are still open regarding the physical mechanisms behind the magnetic switching in GdFeCo alloys by single optical pulses. Phenomenological models suggest a femtosecond scale exchange relaxation between sublattice magnetization as the d
Externí odkaz:
http://arxiv.org/abs/2004.14844
Autor:
Ceballos, Alejandro, Pattabi, Akshay, El-Ghazaly, Amal, Ruta, Sergiu, Simon, Christian P., Evans, Richard F. L., Ostler, Thomas, Chantrell, Roy W., Kennedy, Ellis, Scott, Mary, Bokor, Jeffrey, Hellman, Frances
Publikováno v:
Phys. Rev. B 103, 024438 (2021)
Ultrafast control of the magnetization in ps timescales by fs laser pulses offers an attractive avenue for applications such as fast magnetic devices for logic and memory. However, ultrafast helicity-independent all-optical switching (HI-AOS) of the
Externí odkaz:
http://arxiv.org/abs/1911.09803
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