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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201703474
|2 doi
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|a pubmed24n0921.xml
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|a eng
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| 100 |
1 |
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|a Xu, Yong
|e verfasserin
|4 aut
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| 245 |
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|a Ultrafast Magnetization Manipulation Using Single Femtosecond Light and Hot-Electron Pulses
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 18.07.2018
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Current-induced magnetization manipulation is a key issue for spintronic applications. This manipulation must be fast, deterministic, and nondestructive in order to function in device applications. Therefore, single- electronic-pulse-driven deterministic switching of the magnetization on the picosecond timescale represents a major step toward future developments of ultrafast spintronic systems. Here, the ultrafast magnetization dynamics in engineered Gdx [FeCo]1-x -based structures are studied to compare the effect of femtosecond laser and hot-electron pulses. It is demonstrated that a single femtosecond hot-electron pulse causes deterministic magnetization reversal in either Gd-rich and FeCo-rich alloys similarly to a femtosecond laser pulse. In addition, it is shown that the limiting factor of such manipulation for perpendicular magnetized films arises from the formation of a multidomain state due to dipolar interactions. By performing time-resolved measurements under various magnetic fields, it is demonstrated that the same magnetization dynamics are observed for both light and hot-electron excitation, and that the full magnetization reversal takes place within 40 ps. The efficiency of the ultrafast current-induced magnetization manipulation is enhanced due to the ballistic transport of hot electrons before reaching the GdFeCo magnetic layer
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|a Journal Article
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4 |
|a electronic transport effects
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4 |
|a ferrimagnetics
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4 |
|a magneto-optical effects
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4 |
|a ultrafast magnetization dynamics and switching
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|a ultrafast spectroscopy
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| 700 |
1 |
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|a Deb, Marwan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Malinowski, Grégory
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hehn, Michel
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Weisheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mangin, Stéphane
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 29(2017), 42 vom: 06. Nov.
|w (DE-627)NLM098206397
|x 1521-4095
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|g volume:29
|g year:2017
|g number:42
|g day:06
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|u http://dx.doi.org/10.1002/adma.201703474
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