November 30, 2022

Major Breakthrough for Efficient and High-Speed Spintronic Data Storage Devices

This new soft X-ray source based upon a high-energy Ytterbium laser represents a substantial advance in the investigation of future energy-efficient and high-speed spintronic devices and might be used for lots of applications in physics, biology, and chemistry.
” Our method supplies a robust, cost-efficient, and energy-scalable stylish service for many labs. It enables the study of ultrafast characteristics in nanoscale and mesoscale structures with both nanometre spatial and femtosecond temporal resolutions, along with the aspect uniqueness,” states Professor Andrius Baltuska, at TU Wien.
Bright X-ray pulses to view the spin
With this intense source of X-ray photons, a series of snapshot pictures of the nanoscale rare earth magnetic structures have been taped. They plainly expose the fast demagnetization procedure, and the outcomes offer rich info on the magnetic residential or commercial properties that are as accurate as those obtained utilizing massive X-ray facilities.
” Development of ultrafast tabletop X-ray sources is amazing for innovative technological applications and contemporary fields of science. We are excited about our results, which might be handy for future research for spintronics, along with other potential fields,” says INRS postdoctoral researcher, Dr. Guangyu Fan.
” Rare earth systems are trending in the neighborhood due to the fact that of their nanometer size, faster speed, and topologically secured stability. The X-ray source is really appealing for many studies on future spintronic gadgets composed of unusual earth.” states Nicolas Jaouen, senior researcher at the French national synchrotron center.
Teacher Légaré emphasizes the collaborative work in between professionals in the development of cutting edge light sources and ultrafast characteristics in magnetic products at the nanoscale. “Considering the fast introduction of high-power Ytterbium laser technology, this work represents huge capacity for high-performance soft X-ray sources. This new generation of lasers, which will be available soon at the Advanced Laser Light Source (ALLS), will have lots of future applications for the fields of physics, chemistry, and even biology,” he states.
Reference: “Ultrafast magnetic scattering on ferrimagnets enabled by a bright Yb-based soft x-ray source” by G. Fan, K. Légaré, V. Cardin, X. Xie, R. Safaei, E. Kaksis, G. Andriukaitis, A. Pugžlys, B. E. Schmidt, J. P. Wolf, M. Hehn, G. Malinowski, B. Vodungbo, E. Jal, J. Lüning, N. Jaouen, G. Giovannetti, F. Calegari, Z. Tao, A. Baltuška, F. Légaré and T. Balčiūnas, 6 April 2022, Optica.DOI: 10.1364/ OPTICA.443440.
The study got fincancial support from the Natural Sciences and Engineering Research Council of Canada, the Fonds de recherche du Québec– Nature et innovations (FRQNT) and PRIMA Québec, to name a few. The ALLS laboratory also gains from a financial investment from the Canada Foundation for Innovation (CFI).
About INRS.
Given that its creation in 1969, INRS has actually played an active role in Québecs economic, social, and cultural development and is ranked initially for research intensity in Québec. INRS is made up of four interdisciplinary research and training centres in Québec City, Montréal, Laval, and Varennes, with competence in tactical sectors: Eau Terre Environnement, Énergie Matériaux Télécommunications, Urbanisation Culture Société, and Armand-Frappier Santé Biotechnologie.

Ultrafast magnetic scattering on ferrimagnets allowed by an intense Yb-based soft x-ray source, that made the cover of Optica. Credit: Ella Maru Studio
INRS researchers and worldwide partners have been successful in looking at spin inside unusual earth materials, using a tabletop ultrafast soft-X-ray microscope, for the first time.
Changing the magnetization, or electron spin, of magnetic products with ultra-short femtosecond laser pulses is an appealing method for speeding up information storage gadgets. In partnership with TU Wien, Austria, the French nationwide synchrotron facility (SOLEIL), and other international partners, Professor François Légarés team at the Institut national de la recherche scientifique (INRS) has made a significant advancement in this field.
Previously, studies on the subject have relied greatly on limited-access big X-ray facilities such as free-electron lasers and synchrotrons. The team shows, for the first time, a tabletop ultrafast soft X-ray microscope to spatio-temporally deal with the spin dynamics inside rare earth products, which are assuring for spintronic gadgets.

Switching the magnetization, or electron spin, of magnetic products with ultra-short femtosecond laser pulses is a promising technique for speeding up information storage gadgets. In cooperation with TU Wien, Austria, the French national synchrotron facility (SOLEIL), and other international partners, Professor François Légarés group at the Institut nationwide de la recherche scientifique (INRS) has actually made a considerable advancement in this field. Teacher Légaré stresses the collaborative work in between experts in the advancement of cutting edge light sources and ultrafast characteristics in magnetic products at the nanoscale. “Considering the fast emergence of high-power Ytterbium laser innovation, this work represents substantial capacity for high-performance soft X-ray sources. This new generation of lasers, which will be offered quickly at the Advanced Laser Light Source (ALLS), will have lots of future applications for the fields of physics, chemistry, and even biology,” he says.

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