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Related papers: Threshold Logic with Current-Driven Magnetic Domai…

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We report the results of experimental investigations of controlled domain wall (DW) pinning in a ferromagnetic nanowire (NW) by stray fields of two uniformly magnetized bistable ferromagnetic nanoparticles (NPs) placed on either side of the…

Mesoscale and Nanoscale Physics · Physics 2018-07-04 V. L. Mironov , O. L. Ermolaeva , E. V. Skorohodov

We proposed a scheme to realize a controlled-NOT quantum logic gate in a dimer of exchange coupled single-molecule magnets, $[\textrm{Mn}_4]_2$. We chosen the ground state and the three low-lying excited states of a dimer in a finite…

Quantum Physics · Physics 2015-06-26 Jing-Min Hou , Li-Jun Tian , Mo-lin Ge

Domain-wall memory (DWM) has SRAM class access performance, low energy, high endurance, high density, and CMOS compatibility. Recently, shift reliability and processing-using-memory (PuM) proposals developed a need to count the number of…

Emerging Technologies · Computer Science 2022-05-26 Prayash Dutta , Albert Lee , Kang L. Wang , Alex K. Jones , Sanjukta Bhanja

We present artificial neural network design using spin devices that achieves ultra low voltage operation, low power consumption, high speed, and high integration density. We employ spin torque switched nano-magnets for modelling neuron and…

Disordered Systems and Neural Networks · Physics 2012-08-16 Mrigank Sharad , Charles Augustine , Georgios Panagopoulos , Kaushik Roy

The recent experimental demonstration of spin-polarized supercurrents offer a venue for establishment of a superconducting analogue to conventional spintronics. Whereas domain wall motion in purely magnetic structures is a well-studied…

Superconductivity · Physics 2015-06-18 Jacob Linder , Klaus Halterman

We theoretically study the equilibrium and dynamic properties of nanoscale magnetic tunnel junctions (MTJs) and magnetic wires, in which an electric field controls the magnetic anisotropy through spin-orbit coupling. By performing…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 Pramey Upadhyaya , Ritika Dusad , Silas Hoffman , Yaroslav Tserkovnyak , Juan G. Alzate , Pedram Khalili Amiri , Kang L. Wang

The current-driven domain wall motion in a ratchet memory due to spin-orbit torques is studied from both full micromagnetic simulations and the one dimensional model. Within the framework of this model, the integration of the anisotropy…

Applied Physics · Physics 2017-05-03 Luis Sánchez-Tejerina , Óscar Alejos , Eduardo Martínez , Víctor Raposo

Memristors are promising next-generation memory candidates that are nonvolatile, possess low power requirements and are capable of nanoscale fabrication. In this article we physically realise and describe the use of organic memristors in…

Emerging Technologies · Computer Science 2012-12-17 Victor Erokhin , Gerard David Howard , Andrew Adamatzky

A design of a magnonic phase shifter operating without an external bias magnetic field is proposed. The phase shifter uses a localized collective spin wave mode propagating along a domain wall "waveguide" in a dipolarly-coupled magnetic dot…

Mesoscale and Nanoscale Physics · Physics 2016-06-14 Steven Louis , Ivan Lisenkov , Sergey Nikitov , Vasyl Tyberkevych , Andrei Slavin

Nucleation of domain walls by current-driving a single domain wall, confined to the junction area of two symmetrical strips, is investigated using systematic micromagnetic simulations. Secondary domain walls (equivalently, bits encoded in…

Materials Science · Physics 2024-01-25 David Osuna Ruiz , Óscar Alejos , Víctor Raposo , Eduardo Martínez

Spin waves and their quanta magnons open up a promising branch of high-speed and low-power information processing. Several important milestones were achieved recently in the realization of separate magnonic data processing units including…

Thresholded hybrid systems are restricted dynamical systems, where the current mode, and hence the ODE system describing its behavior, is solely determined by externally supplied digital input signals and where the only output signals are…

Systems and Control · Electrical Eng. & Systems 2024-03-08 Arman Ferdowsi , Matthias Függer , Thomas Nowak , Michael Drmota , Ulrich Schmid

Micromagnetic simulation is carried out to investigate the current-driven domain wall (DW) in a nanowire with perpendicular magnetic anisotropy (PMA). A stepped nanowire is proposed to pin DW and achieve high information storage capacity…

Mesoscale and Nanoscale Physics · Physics 2023-07-19 S. Al Risi , R. Sbiaa , M. Al Bahri

Searching for new methods controlling antiferromagnetic (AFM) domain wall is one of the most important issues for AFM spintronic device operation. In this work, we study theoretically the domain wall motion of an AFM nanowire, driven by the…

Applied Physics · Physics 2020-02-26 D. L. Wen , Z. Y. Chen , W. H. Li , M. H. Qin , D. Y. Chen , Z. Fan , M. Zeng , X. B. Lu , X. S. Gao , J. M. Liu

Submicron-sized mesas of resonant tunneling diodes (RTDs) with split drain contacts have been realized and the current-voltage characteristics have been studied in the bistable regime at room temperature. Dynamically-biased, the RTDs show…

Disordered Systems and Neural Networks · Physics 2008-12-22 L. Worschech , F. Hartmann , A. Forchel , J. Ahopelto , I. Neri , L. Gammaitoni

Manipulating logic functions via majority operators recently drew the attention of researchers in computer science. For example, circuit optimization based on majority operators enables superior results as compared to traditional logic…

Logic in Computer Science · Computer Science 2016-11-15 Luca Amaru , Pierre-Emmanuel Gaillardon , Anupam Chattopadhyay , Giovanni De Micheli

Deep neural network (DNN) based approaches hold significant potential for reinforcement learning (RL) and have already shown remarkable gains over state-of-art methods in a number of applications. The effectiveness of DNN methods can be…

Machine Learning · Statistics 2017-06-01 Henghui Zhu , Feng Nan , Ioannis Paschalidis , Venkatesh Saligrama

Magnonics is a rapidly growing field, attracting much attention for its potential applications in data transport and processing. Many individual magnonic devices have been proposed and realized in laboratories. However, an integrated…

Mesoscale and Nanoscale Physics · Physics 2023-12-01 Xu Ge , Roman Verba , Philipp Pirro , Andrii V. Chumak , Qi Wang

We theoretically study the current-perpendicular-to-plane magnetoresistance of a domain wall confined in a current-confined-path (CCP) structure made of a nano-oxide-layer (NOL). In order to calculate the MR ratio of the system, the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Jun Sato , Katsuyoshi Matsushita , Hiroshi Imamura

There are pressing problems with traditional computing, especially for accomplishing data-intensive and real-time tasks, that motivate the development of in-memory computing devices to both store information and perform computation.…