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Advancing the development of spin-wave devices requires high-quality low-damping magnetic materials where magnon spin currents can propagate efficiently and interact effectively with local magnetic textures. We show that magnetic domain…

Mesoscale and Nanoscale Physics · Physics 2022-12-06 Yabin Fan , Miela J. Gross , Takian Fakhrul , Joseph Finley , Justin T. Hou , Luqiao Liu , Caroline A. Ross

Hybrid dynamic systems have recently gained interests with respect to both fundamental physics and device applications, particularly with their potential for coherent information processing. In this perspective, we will focus on the recent…

Mesoscale and Nanoscale Physics · Physics 2020-10-06 Yi Li , Wei Zhang , Vasyl Tyberkevych , Wai-Kwong Kwok , Axel Hoffmann , Valentine Novosad

Low energy excitations of a magnetically ordered system are spin waves with magnon being their excitation quanta. Magnons are demonstrated to be useful for data processing and communication. To achieve magnon transport across extended…

Mesoscale and Nanoscale Physics · Physics 2025-02-26 Xi-guang Wang , Guang-hua Guo , Jamal Berakdar , Hui Jing

We report measurements of a superconducting coplanar waveguide resonator (CPWR) coupled to a sphere of yttrium-iron garnet. The non-uniform CPWR field allows us to excite various magnon modes in the sphere. Mode frequencies and relative…

Mesoscale and Nanoscale Physics · Physics 2017-09-15 R. G. E. Morris , A. F. van Loo , S. Kosen , A. D. Karenowska

In the field of magnonics, which uses magnons, the quanta of spin waves, for energy-efficient data processing, significant progress has been made leveraging the capabilities of the inverse design concept. This approach involves defining a…

We describe and analyze magnonic logic circuits enabling parallel data processing on multiple frequencies. The circuits combine bi-stable (digital) input/output elements and an analog core. The data transmission and processing within the…

Other Condensed Matter · Physics 2015-05-28 Alexander Khitun

In the race towards "beyond 6G" telecommunication platforms, magnonics emerges as a promising solution due to its wide tunability within the FR3 band (7-24 GHz). So far, however, the need for an external magnetic bias field to allow the…

Spin waves (magnons) can enable wave-based neuromorphic computing by which one aims at overcoming limitations inherent to conventional electronics and the von Neumann architecture. In this study, we explore the storage of magnon signals and…

Mesoscale and Nanoscale Physics · Physics 2023-12-15 Shreyas S. Joglekar , Korbinian Baumgaertl , Andrea Mucchietto , Francis Berger , Dirk Grundler

The development of fast magnonic information processing nanodevices requires operating with short spin-wave pulses, but, the shorter the pulses, the more affected they are by information loss due to broadening and dispersion. The capability…

Mesoscale and Nanoscale Physics · Physics 2022-09-15 Silvia Casulleras , Sebastian Knauer , Qi Wang , Oriol Romero-Isart , Andrii V. Chumak , Carlos Gonzalez-Ballestero

Magnonics is a research field complementary to spintronics, in which the quanta of spin waves (magnons) replace electrons as information carriers, promising less energy dissipation. The development of ultrafast nanoscale magnonic logic…

Mesoscale and Nanoscale Physics · Physics 2021-12-21 J. R. Hortensius , D. Afanasiev , M. Matthiesen , R. Leenders , R. Citro , A. V. Kimel , R. V. Mikhaylovskiy , B. A. Ivanov , A. D. Caviglia

One-dimensional magnonic crystals have been implemented as gratings of shallow grooves chemically etched into the surface of yttrium-iron garnet films. Scattering of backward volume magnetostatic spin waves from such structures is…

Other Condensed Matter · Physics 2009-10-14 A. V. Chumak , A. A. Serga , S. Wolff , B. Hillebrands , M. P. Kostylev

In CMOS-based electronics, the most straightforward way to implement a summation operation is to use the ripple carry adder (RCA). Magnonics, the field of science concerned with data processing by spin-waves and their quanta magnons,…

Mesoscale and Nanoscale Physics · Physics 2023-02-02 U. Garlando , Q. Wang , O. V. Dobrovolskiy , A. V. Chumak , F. Riente

The field of magnonics, which utilizes propagating spin waves for nano-scale transmission and processing of information, has been significantly advanced by the advent of the spin-orbit torque. The latter phenomenon can allow one to overcome…

Mesoscale and Nanoscale Physics · Physics 2020-05-05 V. E. Demidov , S. Urazhdin , A. Anane , V. Cros , S. O. Demokritov

Boolean logic is the foundation of modern digital information processing. Recently, there has been a growing interest in phenomena based on pure spin currents, which allow to move from charge to spin based logic gates. We study a…

Mesoscale and Nanoscale Physics · Physics 2016-08-03 Kathrin Ganzhorn , Stefan Klingler , Tobias Wimmer , Stephan Geprägs , Rudolf Gross , Hans Huebl , Sebastian T. B. Goennenwein

Conductivities are key material parameters that govern various types of transport (electronic charge, spin, heat etc.) driven by thermodynamic forces. Magnons, the elementary excitations of the magnetic order, flow under the gradient of a…

Mesoscale and Nanoscale Physics · Physics 2022-09-23 X-Y. Wei , O. Alves Santos , C. H. Sumba Lusero , G. E. W. Bauer , J. Ben Youssef , B. J. van Wees

Controlling magnon densities in magnetic materials enables driving spin transport in magnonic devices. We demonstrate the creation of large, out-of-equilibrium magnon densities in a thin-film magnetic insulator via microwave excitation of…

Ferromagnetic metals and insulators are widely used for generation, control and detection of magnon spin signals. Most magnonic structures are based primarily on either magnetic insulators or ferromagnetic metals, while heterostructures…

To face the challenges lying beyond current CMOS-based technology, new paradigms for information processing are required. Magnonics proposes to use spin waves to carry and process information, in analogy with photonics that relies on light…

We present the experimental demonstration of the parallel parametric generation of spin-waves in a microscaled yttrium iron garnet waveguide with nanoscale thickness. Using Brillouin light scattering microscopy, we observe the excitation of…

Mesoscale and Nanoscale Physics · Physics 2023-11-01 M. Mohseni , M. Kewenig , R. Verba , Q. Wang , M. Schneider , B. Heinz , F. Kohl , C. Dubs , B. Lägel , A. A. Serga , B. Hillebrands , A. V. Chumak , P. Pirro

Spin waves are investigated in Yttrium Iron Garnet (YIG) waveguides with a thickness of 39 nm and widths ranging down to 50 nm, i.e., with aspect ratios thickness over width approaching unity, using Brillouin Light Scattering spectroscopy.…

Mesoscale and Nanoscale Physics · Physics 2019-06-26 Q. Wang , B. Heinz , R. Verba , M. Kewenig , P. Pirro , M. Schneider , T. Meyer , B. Lägel , C. Dubs , T. Brächer , A. V. Chumak