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Twisted atomic magnetic tunnel junctions with multiple nonvolatile states [PDF]

open access: yesNature Communications
Magnetic tunnel junctions (MTJs), a key spintronic device, have shown rapid development recently using two-dimensional (2D) magnets. In particular, MTJs formed from twisted 2D antiferromagnets (AFMs) push nonvolatile magnetic information storage to the ...
Yuliang Chen   +9 more
doaj   +2 more sources

Nonvolatile storage in photorefractive crystals [PDF]

open access: yesOptics Letters, 1994
We propose and demonstrate a nonvolatile holographic recording system for storing two-dimensional images. The readout light in this system is not absorbed by the holographic medium, and the data are preformatted or postformatted so that lines from ...
Li, Hsin-Yu Sidney   +2 more
core   +4 more sources

On-chip graphene photodetectors with a nonvolatile p–i–n homojunction [PDF]

open access: yesLight: Science & Applications
Graphene’s unique photothermoelectric (PTE) effect, combined with its compatibility for on-chip fabrication, promises its development in chip-integrated photodetectors with ultralow dark-current and ultrafast speed.
Ruijuan Tian   +17 more
doaj   +2 more sources

Magneto-thermal switching using superconducting metals and alloys [PDF]

open access: yesScience and Technology of Advanced Materials
Superconductors exhibit low thermal conductivity (κ) due to the suppression of electronic thermal conduction in the superconducting states with Cooper pairs. This change in κ enables superconductors to function as magneto-thermal switches (MTS).
Hiroto Arima   +3 more
doaj   +2 more sources

An 8kb RRAM-Based Nonvolatile SRAM with Pre-Decoding and Fast Storage/Restoration Time

open access: yesApplied Sciences, 2022
Combining the advantages of low-power consumption of static random access memory (SRAM) with high stability and nonvolatile of resistive memory (RRAM), an improved 8T2R nonvolatile SRAM (nvSRAM) memory cell was proposed in this paper.
Jiayu Yin   +4 more
doaj   +1 more source

Spin and charge drift-diffusion in ultra-scaled MRAM cells

open access: yesScientific Reports, 2022
Designing advanced single-digit shape-anisotropy MRAM cells requires an accurate evaluation of spin currents and torques in magnetic tunnel junctions (MTJs) with elongated free and reference layers.
Simone Fiorentini   +6 more
doaj   +1 more source

Emerging CMOS Compatible Magnetic Memories and Logic

open access: yesIEEE Journal of the Electron Devices Society, 2021
As scaling of the feature size - the main driving force behind an outstanding increase of the performance of modern electronic circuits - displays signs of saturation, the main focus of engineering research in microelectronics shifts towards finding new ...
Johannes Ender   +5 more
doaj   +1 more source

Numerical Analysis of Deterministic Switching of a Perpendicularly Magnetized Spin-Orbit Torque Memory Cell

open access: yesIEEE Journal of the Electron Devices Society, 2021
We propose a magnetic field-free spin-orbit torque switching scheme based on two orthogonal current pulses, for which deterministic switching is demonstrated via numerical simulations.
R. L. de Orio   +5 more
doaj   +1 more source

Finite Element Approach for the Simulation of Modern MRAM Devices

open access: yesMicromachines, 2023
Because of their nonvolatile nature and simple structure, the interest in MRAM devices has been steadily growing in recent years. Reliable simulation tools, capable of handling complex geometries composed of multiple materials, provide valuable help in ...
Simone Fiorentini   +7 more
doaj   +1 more source

A Comprehensive Study of Temperature and Its Effects in SOT-MRAM Devices

open access: yesMicromachines, 2023
We employ a fully three-dimensional model coupling magnetization, charge, spin, and temperature dynamics to study temperature effects in spin-orbit torque (SOT) magnetoresistive random access memory (MRAM).
Tomáš Hadámek   +5 more
doaj   +1 more source

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