Добірка наукової літератури з теми "Ultrafast magnetization reversal"
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Статті в журналах з теми "Ultrafast magnetization reversal":
Liu, Yongshan, Houyi Cheng, Pierre Vallobra, Huiwen Wang, Sylvain Eimer, Xiaoqiang Zhang, Gregory Malinowski, et al. "Ultrafast single-pulse switching of Tb-dominant CoTb alloy." Applied Physics Letters 122, no. 2 (January 9, 2023): 022401. http://dx.doi.org/10.1063/5.0131716.
Yang, Yang, Richard B. Wilson, Jon Gorchon, Charles-Henri Lambert, Sayeef Salahuddin, and Jeffrey Bokor. "Ultrafast magnetization reversal by picosecond electrical pulses." Science Advances 3, no. 11 (November 2017): e1603117. http://dx.doi.org/10.1126/sciadv.1603117.
Kurkin, M. I., and N. B. Orlova. "Femtosecond magnetooptics and ultrafast magnetization reversal of ferromagnetic." Journal of Magnetism and Magnetic Materials 361 (June 2014): 224–31. http://dx.doi.org/10.1016/j.jmmm.2014.02.079.
Cheng, Weiming, Xing Li, Haiwei Wang, Xiaomin Cheng, and Xiangshui Miao. "Laser induced ultrafast magnetization reversal in TbCo film." AIP Advances 7, no. 5 (February 1, 2017): 056018. http://dx.doi.org/10.1063/1.4975659.
Choi, B. C., M. Belov, W. K. Hiebert, G. E. Ballentine, and M. R. Freeman. "Ultrafast Magnetization Reversal Dynamics Investigated by Time Domain Imaging." Physical Review Letters 86, no. 4 (January 22, 2001): 728–31. http://dx.doi.org/10.1103/physrevlett.86.728.
Popolitova, Daria V., Nikolay V. Klenov, Igor I. Soloviev, Sergey V. Bakurskiy, and Olga V. Tikhonova. "Unipolar magnetic field pulses as an advantageous tool for ultrafast operations in superconducting Josephson “atoms”." Beilstein Journal of Nanotechnology 10 (July 29, 2019): 1548–58. http://dx.doi.org/10.3762/bjnano.10.152.
Gerrits, Th, H. A. M. van den Berg, J. Hohlfeld, L. Bär, and Th Rasing. "Ultrafast precessional magnetization reversal by picosecond magnetic field pulse shaping." Nature 418, no. 6897 (August 2002): 509–12. http://dx.doi.org/10.1038/nature00905.
Rahman, Nafeesa, and Rachid Sbiaa. "Magnetization Dynamics in a Perpendicular Anisotropy Free Layer under a Spin Torque Effect with Crossed Polarization." Sultan Qaboos University Journal for Science [SQUJS] 25, no. 1 (June 9, 2020): 54. http://dx.doi.org/10.24200/squjs.vol25iss1pp54-60.
Liu, Xiaodong, Zhen Xu, Ruixin Gao, Haining Hu, Zhifeng Chen, Zixin Wang, Jun Du, Shiming Zhou, and Tianshu Lai. "Dynamics of magnetization, reversal, and ultrafast demagnetization of TbFeCo amorphous films." Applied Physics Letters 92, no. 23 (June 9, 2008): 232501. http://dx.doi.org/10.1063/1.2943281.
Zhu, Yonggang, Xinhui Zhang, Tao Li, Xia Huang, Lifen Han, and Jianhua Zhao. "Ultrafast dynamics of four-state magnetization reversal in (Ga,Mn)As." Applied Physics Letters 95, no. 5 (August 3, 2009): 052108. http://dx.doi.org/10.1063/1.3202395.
Дисертації з теми "Ultrafast magnetization reversal":
Lin, Jun-Xiao. "Light Induced Magnetization Manipulation in In-Plane Magnetized Heterostructures." Electronic Thesis or Diss., Université de Lorraine, 2024. http://www.theses.fr/2024LORR0022.
The demand for data storage has experienced exponential growth, driven by the world's increasing reliance on digital information. This growth has catalyzed the development of faster and more energy-efficient technologies. This development coincides with the objectives of spintronics, a field aimed at reducing energy consumption in magnetic data storage by exploring spin-based alternatives. As a result, extensive research has been dedicated to the manipulation of magnetization (i.e., spins), which lies at the heart of spintronics, forming a substantial and enduring research agenda. The speed and efficiency of this manipulation depend on the methods of writing employed and the properties of the magnetic materials involved, thus requiring a comprehensive understanding of the underlying manipulation mechanisms. Among the various writing techniques, the utilization of ultrashort (femtosecond) laser pulses has gained considerable attention for its capability to rapidly excite magnetization on the femtosecond timescale. A single femtosecond laser pulse has been demonstrated to induce full magnetization reversal in magnetic materials, a phenomenon known as all-optical helicity-independent switching (AO-HIS). However, the underlying mechanism and criteria for the AO-HIS remain incompletely understood. Moreover, since the initial report of AO-HIS, this effect has mainly been observed in a specific group of magnetic materials exhibiting perpendicular magnetic anisotropy. Further endeavors and studies are necessary to broaden the applicability of AO-HIS. In pursuit of this goal, this thesis focuses on investigating AO-HIS in a range of ferrimagnetic and ferromagnetic materials characterized by in-plane magnetic anisotropy. We employ femtosecond laser pulses to drive magnetization reversal in these materials. Furthermore, we undertake a systematic exploration aimed at comprehending AO-HIS by altering the magnetic properties of magnetic heterostructures. This manipulation includes varying alloy concentrations, Curie temperatures, thicknesses, and the type of magnetic layers. We consider our findings crucial from a fundamental perspective. The experimental findings of this thesis are presented in three chapters (Chapters 4 to 6). In Chapter 4, we extensively discussed the deterministic AO-HIS observed in a broad range of alloy concentrations and thicknesses in in-plane magnetized GdCo thin films, utilizing a laser-based magneto-optic Kerr effect microscopy system. Chapters 5 and 6 delve into the recipe of transitioning from multiple to single magnetization reversals in in-plane magnetized ferromagnetic materials, induced by optically generated spin current pulses
Huang, Tianxun. "A study about the behavior and mechanism of all-optical switching." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0054.
To meet the future needs of high density, low power consumption, and fast rate of magnetic storage technology, it is one of the urgent tasks in the field of spintronics to develop a new method of magnetization manipulation with shorter magnetization reversal time and lower energy consumption. Ultrashort pulsed laser technology offers a new way to manipulate spins in femtosecond timescale, sparking great research interest in both academia and industry. Two methods of controlling magnetization by laser, all-optical helicity-dependent switching (AO-HDS) and all-optical helicity-independent switching (AO-HIS), are discovered recently and raise numerous discussion on their mechanisms, behaviors and applications. However, the origin of two phenomena is still largely debated, which will be the main task of this thesis. A Co/Pt multilayered stack exhibiting AO-HDS phenomenon is employed to study the mechanism of AO-HDS. The film is fabricated to a 10x10 um^2 magnetic square on a Hall bar and its switching behavior is observed optically and electrically at different timescale. The switching of this magnetic unit can be demonstrated with ten consecutive circularly polarized laser pulses. The spin dynamics of AO-HDS can be understood in terms of the magnetic domain thermal nucleation and domain wall propagation driven bythermal gradient. For the past years, AO-HIS has never been observed in other rare-earth transition-metal alloys except when the rare-earth is Gd. To study the speciality of Gd, a complete series of GdRCo (R represents Tb, Dy or Ho) alloys is grown and investigated, it is demonstrated that AO-HIS can be observed when the composition of R is as low as 1.5% near the compensation point of ferrimagnet. State diagrams describing the key parameters depending on the element concentrations and spin dynamics in various samples are studied, providing some suggestion on the origin of AO-HIS and its engineering application in the future
Частини книг з теми "Ultrafast magnetization reversal":
Back, C. H. "The Role of Damping in Ultrafast Magnetization Reversal." In Physics of Low Dimensional Systems, 393–99. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/0-306-47111-6_37.
Тези доповідей конференцій з теми "Ultrafast magnetization reversal":
Kochergin, Vladimir, Lauren N. Neely, Leigh J. Allin, Eugene V. Kochergin, and Kang L. Wang. "Plasmonic enhancement of ultrafast all-optical magnetization reversal." In SPIE NanoScience + Engineering, edited by Mark I. Stockman. SPIE, 2011. http://dx.doi.org/10.1117/12.893475.
Kochergin, Vladimir, Sergiy Cherepov, Robert N. Schwartz, Kevin Flanagan, Ilya N. Krivorotov, Evgeniy V. Kochergin, and Kang L. Wang. "Ultrafast all-optical magnetization reversal in GdFeCo films around plasmonic nanostructures." In SPIE NanoScience + Engineering, edited by Mark I. Stockman. SPIE, 2013. http://dx.doi.org/10.1117/12.2021907.
Cheng, W., Y. Wang, Z. Liu, Y. Hui, H. Wang, J. Chen, Y. Hao, and X. Miao. "Femtosecond laser heating induced ultrafast magnetization reversal in TbCo films with different electron-phonon coupling inter-action." In 2018 IEEE International Magnetic Conference (INTERMAG). IEEE, 2018. http://dx.doi.org/10.1109/intmag.2018.8508175.
Звіти організацій з теми "Ultrafast magnetization reversal":
Garwin, Edward L. Minimum Field Strength in Ultrafast Magnetization Reversal. Office of Scientific and Technical Information (OSTI), June 1999. http://dx.doi.org/10.2172/10098.