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Spintronic nano-oscillators can generate tunable microwave signals that find a wide range of applications in the field of telecommunication to modern neuromorphic computing systems. Among other spintronic devices, a magnetic skyrmion is a…

Mesoscale and Nanoscale Physics · Physics 2024-03-21 Abhishek Sharma , Saumya Gupta , Debasis Das , Ashwin. A. Tulapurkar , Bhaskaran Muralidharan

In this article we demonstrate the injection locking of recently demonstrated spintronic feedback nano oscillator to microwave magnetic fields at integers as well fractional multiples of its auto oscillation frequency. Feedback oscillators…

Mesoscale and Nanoscale Physics · Physics 2017-12-20 Hanuman Singh , K. Konishi , S. Bhuktare , A. Bose , S. Miwa , A. Fukushima , K. Yakushiji , S. Yuasa , H. Kubota , Y. Suzuki , A. A. Tulapurkar

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

Due to their nonlinear properties, spin transfer nano-oscillators can easily adapt their frequency to external stimuli. This makes them interesting model systems to study the effects of synchronization and brings some opportunities to…

We discuss theoretically the properties of an electromechanical oscillating system whose operation is based upon the cyclic conservative conversion between gravitational potential, kinetic, and magnetic energies. The system consists of a…

Superconductivity · Physics 2007-05-23 Osvaldo F. Schilling

We report in this paper the design, fabrication and experimental characterization of a piezoelectric MEMS microgenerator. This device scavenges the energy of ambient mechanical vibrations characterized by frequencies in the range of 1 kHz.…

Other Computer Science · Computer Science 2008-02-22 M. Marzencki , Y. Ammar , S. Basrour

This study explores the time-dependent spin transport phenomena in magnetic heterostructures under alternating currents (AC), advancing the relatively underdeveloped field of alternating spintronics. Employing a time-dependent spin…

Mesoscale and Nanoscale Physics · Physics 2026-01-13 Yunwen Liu , Jiang Xiao

Microgrids are increasingly recognized as a key technology for the integration of distributed energy resources into the power network, allowing local clusters of load and distributed energy resources to operate autonomously. However,…

Optimization and Control · Mathematics 2021-06-22 Jeremy Watson , Yemi Ojo , Khaled Laib , Ioannis Lestas

Terahertz spintronics offers the prospect of devices which are both faster and more energy-efficient. A promising route to achieve this goal is to exploit current-induced spin-orbit torques. However, the high-frequency properties of these…

Mesoscale and Nanoscale Physics · Physics 2020-12-21 Filipe S. M. Guimarães , Juba Bouaziz , Manuel dos Santos Dias , Samir Lounis

In this paper we discuss the potential of emerging spintorque devices for computing applications. Recent proposals for spinbased computing schemes may be differentiated as all-spin vs. hybrid, programmable vs. fixed, and, Boolean vs.…

Disordered Systems and Neural Networks · Physics 2013-08-19 Kaushik Roy , Mrigank Sharad , Deliang Fan , Karthik Yogendra

Spin waves in insulating magnets are ideal carriers for spin currents with low energy dissipation. An electric field can modify the dispersion of spin waves, by directly affecting, via spin-orbit coupling, the electrons that mediate the…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Tianyu Liu , G. Vignale

Spin-transfer torques in magnetic nanocontacts can lead to self-sustained magnetization oscillations that involve large-amplitude gyrotropic vortex motion. This dynamics consists of a steady state orbit around the nanocontact, which is made…

Materials Science · Physics 2010-07-23 Joo-Von Kim , Thibaut Devolder

We perform a comparative study of spin transfer induced excitation of the gyrotropic motion of a vortex core with either uniform or vortex spin polarizers. The microwave output voltage associated with the vortex dynamics, detected in both…

We discuss theoretically the properties of an electromechanical oscillator whose operation is based upon the cyclic, quasi-conservative conversion between gravitational potential, kinetic, and magnetic energies. The system consists of a…

Superconductivity · Physics 2018-07-27 Osvaldo F. Schilling

We report the operation of a Bloch oscillator. The active medium was a staticvoltage driven, doped GaAs/AlAs superlattice which was electromagnetically coupled to a resonator. The oscillator produced tuneable microwave radiation (frequency…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 K. F. Renk , A. Meier , B. I. Stahl , A. Glukhovskoy , M. Jain , H. Appel , W. Wegscheider

The oscillating frequency of typical Spin Torque Nano Oscillators (STNOs) can be modulated by injected DC current or bias magnetic field. And phase locking of STNOs to an external Radio Frequency (RF) signal can be imposed by AC current or…

Mesoscale and Nanoscale Physics · Physics 2019-07-29 Lang Zeng , Hao-Hsuan Chen , Deming Zhang , Tianqi Gao , Mingzhi Long , Youguang Zhang , Weisheng Zhao

As nanoelectronics approaches the nanometer scale, a massive effort is underway to identify the next scalable logic technology beyond Complementary Metal Oxide Semiconductor (CMOS) computing. Such computing technology needs to improve…

Mesoscale and Nanoscale Physics · Physics 2017-03-07 Sasikanth Manipatruni , Dmitri E. Nikonov , Ramamoorthy Ramesh , Huichu Li , Ian A. Young

We propose a method for inducing magnetization reversal using an AC spin current polarized perpendicular to the equilibrium magnetization of the free magnetic layer. We show that the critical AC spin current is significantly smaller than…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 Tom Dunn , Alex Kamenev

In magnonics, an emerging branch of wave physics characterized by low-energy consumption, it is highly desirable to realize circuit elements within the scope of spin-wave computing. Here, based on numerical simulations, we demonstrate the…

Mesoscale and Nanoscale Physics · Physics 2020-09-30 Krzysztof Szulc , Piotr Graczyk , Michał Mruczkiewicz , Gianluca Gubbiotti , Maciej Krawczyk

Low-cost spintronic devices functioning in zero applied magnetic field are required for bringing the idea of spin-based electronics into the real-world industrial applications. Here we present first microwave measurements performed on…

Mesoscale and Nanoscale Physics · Physics 2008-11-17 A. Mourachkine , O. V. Yazyev , C. Ducati , J. -Ph. Ansermet