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Modulation of stress anisotropy of magnetostrictive nanomagnets with strain offers an extremely energy-efficient method of magnetization reversal. The reversal process, however, is often incoherent and hence error-prone in the presence of…

介观与纳米尺度物理 · 物理学 2016-07-26 Md Mamun Al-Rashid , Supriyo Bandyopadhyay Jayasimha Atulasimha

Magnetic skyrmions are promising candidates for logic-in-memory applications, intrinsically merging high density non-volatile data storage with computing capabilities, owing to their nanoscale size, fast motion, and mutual repulsions.…

介观与纳米尺度物理 · 物理学 2022-09-07 Naveen Sisodia , Johan Pelloux-Prayer , Liliana D. Buda-Prejbeanu , Lorena Anghel , Gilles Gaudin , Olivier Boulle

Magnetoelectronics is mainly digital, i.e. governed by up and down magnetizations. In contrast, analogue magnetoelectronics makes use of phenomena occuring for non-collinear magnetization configurations. Here we review theories which have…

介观与纳米尺度物理 · 物理学 2015-06-24 Gerrit E. W. Bauer , Yaroslav Tserkovnyak , Daniel Huertas-Hernando , Arne Brataas

We investigated a possible use of the magnonic interferometric switches in multi-valued logic circuits. The switch is a three-terminal device consisting of two spin channels where input, control, and output signals are spin waves. Signal…

介观与纳米尺度物理 · 物理学 2017-02-01 M. Balynsky , A. Kozhevnikov , Y. Khivintsev , T. Bhowmick , D. Gutierrez , H. Chiang , G. Dudko , Y. Filimonov , G. Liu , C. Jiang , A. A. Balandin , R. Lake , A. Khitun

A diode, a device allowing unidirectional signal transmission, is a fundamental element of logic structures and lies in the heart of modern information systems. Spin wave or magnon, representing a collective quasi-particle excitation of the…

材料科学 · 物理学 2016-01-06 Jin Lan , Weichao Yu , Ruqian Wu , Jiang Xiao

Rotating the magnetization of a magnetostrictive nanomagnet with electrically generated mechanical strain dissipates miniscule amount of energy compared to any other rotation method and would have been the ideal method to write bits in…

材料科学 · 物理学 2014-07-09 Ayan K. Biswas , Supriyo Bandyopadhyay , Jayasimha Atulasimha

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…

The stress-induced switching behavior of a multiferroic nanomagnet, dipole coupled to a hard nanomagnet, is numerically studied by solving the stochastic Landau-Lifshitz-Gilbert (LLG) equation for a single domain macro-spin state. Different…

介观与纳米尺度物理 · 物理学 2016-07-26 Mohammad Salehi Fashami , Kamaram Munira , Supriyo Bandyopadhyay , Avik W Ghosh , Jayasimha Atulasimha

All-spin-based computing combining logic and nonvolatile magnetic memory is promising for emerging information technologies. However, the realization of a universal spin logic operation representing a reconfigurable building block with…

介观与纳米尺度物理 · 物理学 2024-10-11 Dmitrii Khokhriakov , Shehrin Sayed , Anamul Md. Hoque , Bogdan Karpiak , Bing Zhao , Supriyo Datta , Saroj P. Dash

Binary stochastic neurons (BSNs) are excellent hardware accelerators for machine learning. A popular platform for implementing them are low- or zero-energy barrier nanomagnets possessing in-plane magnetic anisotropy (e.g. circular disks or…

介观与纳米尺度物理 · 物理学 2022-11-16 Rahnuma Rahman , Supriyo Bandyopadhyay

Precise control of magnetic domain formation at the nanoscale remains constrained by stochastic defect-mediated and unstable pinning, limiting scalability and reproducibility in spintronic architectures. Here we demonstrate that spatially…

介观与纳米尺度物理 · 物理学 2026-05-18 Gijs W. A. Simons , Rik F. J. van Haren , Bert Koopmans

The intense interest in spin-based quantum information processing has caused an increasing overlap between two traditionally distinct disciplines, such as magnetic resonance and nanotechnology. In this work we discuss rigourous design…

介观与纳米尺度物理 · 物理学 2013-01-24 J. P. Dehollain , J. J. Pla , E. Siew , K. Y. Tan , A. S. Dzurak , A. Morello

We theoretically investigate inelastic transport through anisotropic magnetic molecules weakly coupled to one ferromagnetic and one nonmagnetic lead. We find that the current is suppressed over wide voltage ranges due to spin blockade. In…

介观与纳米尺度物理 · 物理学 2009-11-11 Florian Elste , Carsten Timm

An energy-efficient voltage controlled domain wall device for implementing an artificial neuron and synapse is analyzed using micromagnetic modeling in the presence of room temperature thermal noise. By controlling the domain wall motion…

介观与纳米尺度物理 · 物理学 2020-03-31 Md Ali Azam , Dhritiman Bhattacharya , Damien Querlioz , Caroline A. Ross , Jayasimha Atulasimha

Binary stochastic neurons (BSNs) are excellent activators for machine learning. An ideal platform for implementing them are low- or zero-energy-barrier nanomagnets (LBMs) possessing in-plane anisotropy (e.g. circular or slightly elliptical…

介观与纳米尺度物理 · 物理学 2023-02-28 Rahnuma Rahman , Supriyo Bandyopadhyay

Dynamic modulation of electromagnetic responses is theoretically examined in dielectric antiferromagnets. While both magneto-electric and magneto-elastic coupling can achieve robust electrical control of magnetic anisotropy, the latter is…

材料科学 · 物理学 2023-11-23 Xinyi Xu , Yuriy G. Semenov , Ki Wook Kim

Spinmotive force induced by domain wall motion in perpendicularly magnetized nanowires is numerically demonstrated. We show that using nanowires with large magnetic anisotropy can lead to a high stability of spinmotive force under strong…

介观与纳米尺度物理 · 物理学 2018-12-31 Yuta Yamane , Jun'ichi Ieda , Sadamichi Maekawa

Atomic-scale magnetic nanostructures are promising candidates for future information processing devices. Utilizing external electric field to manipulate their magnetic properties is an especially thrilling project. Here, by careful…

材料科学 · 物理学 2015-08-18 Wanjiao Zhu , Hang-Chen Ding , Wen-Yi Tong , Shi-Jing Gong , Xiangang Wan , Chun-Gang Duan

In ferromagnetic nanostructures, the ballistic anisotropic magnetoresistance (BAMR) is a change in the ballistic conductance with the direction of magnetization due to spin-orbit interaction. Very recently, a directional dependent ballistic…

介观与纳米尺度物理 · 物理学 2016-10-10 Ching Hao Chang , Carmine Ortix

We report on the broadband transient optical response from anisotropic nanobrick amorphous silicon particles, exhibiting Mie-type resonances. A quantitative model is developed to identify and disentangle the three physical processes that…