Antiferromagnetic opto-spintronics

Abstract

Article 25fa pilot End User Agreement This publication is distributed under the terms of Article 25fa of the Dutch Copyright Act (Auteurswet) with explicit consent by the author. Dutch law entitles the maker of a short scientific work funded either wholly or partially by Dutch public funds to make that work publicly available for no consideration following a reasonable period of time after the work was first published, provided that clear reference is made to the source of the first publication of the work. This publication is distributed under The Association of Universities in the Netherlands (VSNU) 'Article 25fa implementation' pilot project. In this pilot research outputs of researchers employed by Dutch Universities that comply with the legal requirements of Article 25fa of the Dutch Copyright Act are distributed online and free of cost or other barriers in institutional repositories. Research outputs are distributed six months after their first online publication in the original published version and with proper attribution to the source of the original publication. You are permitted to download and use the publication for personal purposes. All rights remain with the author(s) and/or copyrights owner(s) of this work. Any use of the publication other than authorised under this licence or copyright law is prohibited. If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons.

Spin Seebeck Effect from Antiferromagnetic Magnons and Critical Spin Fluctuations in Epitaxial FeF2 Films

“…All the SSE data taken at different magnetic fields up to 12 T near and above the critical point T N follow the critical scaling law very well with the critical exponents for magnetic susceptibility of 3D Ising systems, which suggests that the AFM spin correlation is responsible for the observed SSE near T N . 2 Antiferromagnetic insulators (AFMI) have recently attracted a great deal of interest in the emerging field of antiferromagnetic spintronics due to their unique properties such as robustness against magnetic field perturbation and ultrafast spin-dynamics [1][2][3][4]. In early reports, thin AFMI layers are found to enhance spin current transmission when they are inserted between a ferrimagnetic insulator (FMI) and a heavy metal (HM), such as the NiO and CoO AFMI layers in Y 3 Fe 5 O 12 (YIG)/NiO/Pt [5,6] and YIG/CoO/Pt [6], where an increased spin Seebeck effect (SSE) signal is attributed to the enhanced spin conductance in the AFMI spacer around its phase transition temperature [6,7].…”

Ultraviolet Metasurfaces of ≈80% Efficiency with Antiferromagnetic Resonances for Optical Vectorial Anti‐Counterfeiting

“…This antiferromagnetic resonance mode usually exists in layered magnetic structures that are used for information storage. This mode is also investigated to probe the connection between antiferromagnetic spintronics and topological structures . Recently, 1D antiferromagnetic chain has also been observed in other artificially engineered structures such as the plasmonic nanodisk array and hybrid metamaterials .…”

“…This mode is also investigated to probe the connection between antiferromagnetic spintronics and topological structures. [38,39] Recently, 1D antiferromagnetic chain has also been observed in other artificially engineered structures such as the plasmonic nanodisk array [40] and hybrid metamaterials. [41,42] To show its role in our case, we investigate both electric and magnetic fields resonating in the optimal nanobrick (see Figure 2a,…”

Lattice and magnetic dynamics in the polar, chiral, and incommensurate antiferromagnet Ni2InSbO6

“…Antiferromagnets with complex crystal and magnetic structures are promising candidates in the emerging fields of antiferromagnetic spintronics [9][10][11][12] and sub-terahertz and terahertz magnonics [13] due to usually richer excitation spectrum, much higher resonance frequencies and absence of stray field in comparison to ferro-and ferrimagnets. In multiferroic and magnetoelectric crystals and artificial structures both space and time reversal symmetries are simultaneously broken pushing the interest to magnetically ordered systems further due to a coupling of multiple order parameters [14][15][16][17][18][19][20].…”