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We measured ferromagnetic resonance of a single submicron ferromagnetic strip, embedded in an on-chip microwave transmission line device. The method used is based on detection of the oscillating magnetic flux due to the magnetization…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. V. Costache , M. Sladkov , C. H. van der Wal , B. J. van Wees

We employ N-$V$ magnetometry to measure the stray field dynamics of a ferromagnetic permalloy nanowire driven by spin-orbit torques. Specifically, we observe the optically detected magnetic resonance (ODMR) signatures of both spontaneous…

Mesoscale and Nanoscale Physics · Physics 2023-08-01 Adrian Solyom , Michael Caouette-Mansour , Brandon Ruffolo , Patrick Braganca , Lilian Childress , Jack Sankey

We investigate the spin-wave excitation in microscopic waveguides fabricated by localized Cr+ ion implantation in a ferromagnetic Ni(81)Fe(19) film. We demonstrate that spin-wave waveguides can be conveniently made by this technique. The…

The spatial profiles and the dissipation characteristics of spin-wave quasi-eigenmodes are investigated in small magnetic Ni$_{81}$Fe$_{19}$ ring structures using Brillouin light scattering microscopy. It is found, that the decay constant…

Materials Science · Physics 2009-11-13 H. Schultheiss , C. W. Sandweg , B. Obry , S. J. Hermsdoerfer , S. Schaefer , B. Leven , B. Hillebrands

The nitrogen-vacancy (NV) centre in diamond is a leading platform for nanoscale sensing and imaging, as well as quantum information processing in the solid state. To date, individual control of two NV electronic spins at the nanoscale has…

Understanding the origins of power loss in superconducting interconnects is essential for the energy efficiency and scalability of superconducting digital logic. At microwave frequencies, power dissipates in both the dielectrics and…

We develop a field theory to study the dynamics of long wavelength exchange spin wave excitations on honeycomb nanoribbons characterized by armchair edge boundaries and the N\'eel antiferromagnetic ordering state. Appropriate boundary…

Mesoscale and Nanoscale Physics · Physics 2019-04-26 Doried Ghader , Antoine Khater

Robustly manipulating waves on subwavelength scales can be achieved by, firstly, designing a structure with a subwavelength band gap and, secondly, introducing a defect so that eigenfrequencies fall within the band gap. Such frequencies are…

Analysis of PDEs · Mathematics 2021-11-15 Habib Ammari , Bryn Davies , Erik Orvehed Hiltunen

We investigate spin-wave propagation in a microstructured magnonic-crystal waveguide fabricated by localized ion implantation. The irradiation caused a periodic variation in the saturation magnetization along the waveguide. As a…

Two-dimensional ferromagnetic nanodot structures exhibit intriguing magnetization dynamics and hold promise for future magnonic devices. In this study, we present a comparative experimental investigation into the reconfigurable…

Mesoscale and Nanoscale Physics · Physics 2024-07-15 Swapnil Barman , Rajib Kumar Mitra

Plasmonic wireless nanolinks hold great promise to overcome limitations from conventional metallic wires, namely narrow bandwidths, Ohmic losses, dispersion and cross-talking. However, current developments are limited to the wireless…

Magnetic domain walls (DWs) in nanostructures are low-dimensional objects that separate regions with uniform magnetisation. Since they can have different shapes and widths, DWs are an exciting playground for fundamental research, and became…

Mesoscale and Nanoscale Physics · Physics 2015-09-17 V. D. Nguyen , O. Fruchart , S. Pizzini , J. Vogel , J. -C. Toussaint , N. Rougemaille

Recent studies on spin-wave propagation in ferromagnetic waveguides has highlighted the role of nonreciprocity resulting from the chiral nature of dipolar interactions in curved elements. However, the impact of spin-wave mode type on…

Mesoscale and Nanoscale Physics · Physics 2026-01-21 Uladzislau Makartsou , Mateusz Gołębiewski , Attila Kákay , Olena Tartakivska , Maciej Krawczyk

We demonstrate a general and robust method to confine on a plane strongly diffusing submicrometer particles in water by using size tunable magnetic channels. These virtual conduits are realized with pairs of movable Bloch walls (BWs)…

Soft Condensed Matter · Physics 2019-08-15 Pietro Tierno , Tom H. Johansen , Jose M. Sancho

Femtosecond laser excitation of materials that exhibit magnetic spin textures promises advanced magnetic control via the generation of ultrafast and non-equilibrium spin dynamics. We explore such possibilities in ferrimagnetic [Fe(0.35…

We have studied magnetization dynamics of a single Bi-YIG thin film by means of the high frequency power response induced by a slot line waveguide. Multiple absorption peaks that correspond to excitement states in magnetization dynamics…

Applied Physics · Physics 2020-04-22 Tetsunori Koda , Sho Muroga , Yasushi Endo

Chains of metallic nanoparticles sustain strongly confined surface plasmons with relatively low dielectric losses. To exploit these properties in applications,such as waveguides, the fabrication of long chains of low disorder and a thorough…

Magnetic tunnel junctions (MTJs) are key enablers of spintronic technologies used in a variety of applications including information storage, microwave generation and detection, as well as unconventional computing. Here, we present…

Mesoscale and Nanoscale Physics · Physics 2025-03-12 Andrea Meo , Chengcen Sha , Emily Darwin , Riccardo Tomasello , Mario Carpentieri , Ilya N. Krivorotov , Giovanni Finocchio

We report direct imaging by means of x-ray photoemission electron microscopy of the dynamics of magnetic vortices confined in micron-size circular Permalloy dots that are 30 nm thick. The vortex core positions oscillate on a 10-ns timescale…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 K. Yu. Guslienko , X. F. Han , D. J. Keavney , R. Divan , S. D. Bader

By means of the plane wave method we study spin wave dynamics in two-dimensional bi-component magnonic crystals based on a squeezed hexagonal lattice and consist of a permalloy thin film with cobalt inclusions. We explore the dependence of…

Mesoscale and Nanoscale Physics · Physics 2019-05-07 S. Mamica , M. Krawczyk , D. Grundler