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We report on the first experimental demonstration of majority logic operation using spin waves in a scaled device with an in-line input and output layout. The device operation is based on the interference of spin waves generated and…

Mesoscale and Nanoscale Physics · Physics 2021-06-22 Florin Ciubotaru , Giacomo Talmelli , Thibaut Devolder , Odysseas Zografos , Marc Heyns , Christoph Adelmann , Iuliana P. Radu

Magnonic logic gates represent a crucial step toward realizing fully magnonic data processing systems without reliance on conventional electronic or photonic elements. Recently, a universal and reconfigurable inverse-design device has been…

In electronics, information has been traditionally stored, processed and communicated using an electron's charge. This paradigm is increasingly turning out to be energy-inefficient, because movement of charge within an…

Mesoscale and Nanoscale Physics · Physics 2009-09-22 Supriyo Bandyopadhyay , Marc Cahay

Spin-wave technology (magnonics) has the potential to further reduce the size and energy consumption of information processing devices. In the submicrometer regime (exchange spin waves), topological defects such as domain walls may…

Mesoscale and Nanoscale Physics · Physics 2016-04-12 F. J. Buijnsters , Y. Ferreiros , A. Fasolino , M. I. Katsnelson

We construct modified spin-wave thermodynamics for frustrated noncollinear antiferromagnets for the first time. The well-known modified spin-wave theory for collinear antiferromagnets diagonalizes a bosonic Hamiltonian subject to the…

Statistical Mechanics · Physics 2023-07-20 Shoji Yamamoto , Jun Ohara

We microscopically analyze thermal spin pumping mediated by magnons, at the interface between a ferromagnetic insulator and a non-magnetic metal, in the semiclassical regime. The generation of a spin current is discussed by calculating the…

Mesoscale and Nanoscale Physics · Physics 2012-05-24 Kouki Nakata

A spin-wave theory of short-range order in the square lattice Heisenberg antiferromagnet is formulated. With growing temperature from T=0 a gapless mode is shown to arise simultaneously with opening a gap in the conventional spin-wave mode.…

Strongly Correlated Electrons · Physics 2009-10-31 A. Sherman , M. Schreiber

Spin-based computing is emerging as a powerful approach for energy-efficient and high-performance solutions to future data processing hardware. Spintronic devices function by electrically manipulating the collective dynamics of the electron…

Spin torque oscillators are spintronic devices that generate a periodic output signal from a non-periodic input, making them promising candidates for applications like microwave communications and neuromorphic computing. However,…

Mesoscale and Nanoscale Physics · Physics 2024-07-02 Daniel Kubler , David A. Smith , Tommy Nguyen , Fernando Ramos-Diaz , Satoru Emori , Vivek P. Amin

The field of magnonics attracts significant attention due to the possibility of utilizing information coded into the spin-wave phase or amplitude to perform computation operations on the nanoscale. Recently, spin waves were investigated in…

Spintronics uses spins, the intrinsic angular momentum of electrons, as an alternative for the electron charge. Its long-term goal is in the development of beyond-Moore low dissipation technology devices. Recent progress demonstrated the…

Mesoscale and Nanoscale Physics · Physics 2018-09-14 R. Lebrun , A. Ross , S. A. Bender , A. Qaiumzadeh , L. Baldrati , J. Cramer , A. Brataas , R. A. Duine , M. Kläui

As an alternative angular momentum carrier, magnons or spin waves can be utilized to encode information and breed magnon-based circuits with ultralow power consumption and non-Boolean data processing capability. In order to construct such a…

Applied Physics · Physics 2018-11-14 C. Y. Guo , C. H. Wan , X. Wang , C. Fang , P. Tang , W. J. Kong , M. K. Zhao , L. N. Jiang , B. S. Tao , G. Q. Yu , X. F. Han

Magnetic skyrmions are particle-like objects with topologically-protected stability which can be set into motion with an applied current. Using a particle-based model we simulate current-driven magnetic skyrmions interacting with random…

Strongly Correlated Electrons · Physics 2017-08-09 Sebastian A. Diaz , C. J. O. Reichhardt , Daniel P. Arovas , Avadh Saxena , C. Reichhardt

Very recently, it has been shown that thermal noise and its artificial versions (Johnson-like noises) can be utilized as an information carrier with peculiar properties therefore it may be proper to call this topic Thermal Noise…

General Physics · Physics 2009-11-13 Laszlo B. Kish , Robert Mingesz , Zoltan gingl

Spin wave propagation along a ferrimagnetic strip with out-of-plane magnetization is studied by means of micromagnetic simulations. The ferrimagnetic material is considered as formed by two antiferromagnetically coupled sublattices. Two…

The concept of Space-Time Crystals (STC), i.e. translational symmetry breaking in time and space, was recently proposed and experimentally demonstrated for quantum systems. Here, we transfer this concept to magnons and experimentally…

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

This paper presents a novel design concept for spintronic nanoelectronics that emphasizes a seamless integration of spin-based memory and logic circuits. The building blocks are magneto-logic gates based on a hybrid graphene/ferromagnet…

Spin-waves in antiferromagnets hold the prospects for the development of faster, less power-hungry electronics, as well as promising physics based on spin-superfluids and coherent magnon-condensates. For both these perspectives, addressing…

Mesoscale and Nanoscale Physics · Physics 2023-08-21 A. El Kanj , O. Gomonay , I. Boventer , P. Bortolotti , V. Cros , A. Anane , R. Lebrun

Logic gates are basic digital elements for computers. We build up thermal logic gates that can perform similar operations as their electronic counterparts. The thermal logic gates are based on the nonlinear lattices, which exhibit very…

Statistical Mechanics · Physics 2007-12-24 Lei Wang , Baowen Li