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Spin-orbit torque and spin-transfer torque are leading the pathway to the future of spintronic memories. However, both of the mechanisms are suffering from intrinsic limitations. In particular, an external magnetic field is required for…

The figures-of-merit for reservoir computing (RC), using spintronics devices called magnetic tunnel junctions (MTJs), are evaluated. RC is a type of recurrent neural network. The input information is stored in certain parts of the…

We propose an improved scheme for low-power writing of binary bits in non-volatile (multiferroic) magnetic memory with electrically generated mechanical stress. Compared to an earlier idea [Tiercelin, et al., J. Appl. Phys., 109, 07D726…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Ayan K. Biswas , Supriyo Bandyopadhyay , Jayasimha Atulasimha

Ferroelectric tunnel junctions (FTJs) leverage polarization-dependent tunneling through ultrathin barriers to enable two-terminal, non-volatile memory and logic. Although conceptually appealing, the practical implementation of conventional…

We investigate switching of magnetic tunnel junctions (MTJs) driven by the thermal effect of the transport current through the junctions. The switching occurs in a specially designed composite free layer, which acts as one of the MTJ…

Mesoscale and Nanoscale Physics · Physics 2018-01-17 A. F. Kravets , D. M. Polishchuk , V. A. Pashchenko , A. I. Tovstolytkin , V. Korenivski

The discovery of spin torque transfer (STT) has lead to a significant advance in the development of spintronic devices. Novel structures and materials have been studied in order to improve the performance of the magnetic tunnel junctions…

Mesoscale and Nanoscale Physics · Physics 2009-08-24 Xiaofeng Yao , Yisong Zhang , Andrew Lyle , Roger Malmhall , Rajiv Ranjan , Lei Lu , Mingzhong Wu , Hao Wang , Ying Jing , Jian-Ping Wang

Present information and communication technologies are largely based on electronic devices, which suffer from heat generation and high power consumption. Alternatives like spintronics and magnonics, which harness the spin degree of freedom,…

A promising branch of neuromorphic computing aims to perform cognitive operations in hardware leveraging the physics of efficient and well-established nano-devices. In this work, we present a reconfigurable classifier based on a network of…

Applied Physics · Physics 2024-07-10 A. Lopez , D. Costa , T. Bohnert , P. P. Freitas , R. Ferreira , I. Barbero , J. Camarero , C. Leon , J. Grollier , M. Romera

Insertion of layers displaying field-induced metal-to-insulator (M/I) transition in ferroelectric tunnel junctions (FTJs) has received attention as a potentially useful way to enlarge junction tunnel electroresistance (TER). Half-doped…

The vast amount of data generated by camera sensors has prompted the exploration of energy-efficient processing solutions for deploying computer vision tasks on edge devices. Among the various approaches studied, processing-in-pixel…

A versatile control of magnetic systems, widely used to store information, can also enable manipulating Majorana bounds states (MBS) and implementing fault-tolerant quantum information processing. The proposed platform relies on the…

Mesoscale and Nanoscale Physics · Physics 2017-06-23 Alex Matos-Abiague , Javad Shabani , Andrew D. Kent , Geoffrey L. Fatin , Benedikt Scharf , Igor Žutić

Arrays of Vortex Transitional (VT) memory cells with functional density up to $1 Mbit/cm^2$ have been designed, fabricated, and successfully demonstrated. This progress is due to recent advances in design optimization and in superconductor…

Applied Physics · Physics 2019-05-22 Vasili K. Semenov , Yuri A. Polyakov , Sergey K. Tolpygo

Spintronics-based nonvolatile components in neuromorphic circuits offer the possibility of realizing novel functionalities at low power. Current-controlled electrical switching of magnetization is actively researched in this context.…

Applied Physics · Physics 2023-01-10 A. S. Goossens , M. A. T. Leiviskä , T. Banerjee

Large magnetoresistance effect controlled by electric field rather than magnetic field or electric current is a preferable routine for designing low power consumption magnetoresistance-based spintronic devices. Here we propose an…

Mesoscale and Nanoscale Physics · Physics 2019-10-23 Yurong Su , Jia Zhang , Jing-Tao Lü , Jeongmin Hong , Long You

The utilization of two-dimensional (2D) materials in magnetic tunnel junctions (MTJs) has shown excellent performance and rich physics. As for 2D antiferromagnets, the magnetic moments in different layers respond asynchronously and can be…

Mesoscale and Nanoscale Physics · Physics 2025-12-04 Xiaolin Ren , Ruizi Liu , Yiyang Zhang , Yuting Liu , Xuezhao Wu , Kun Qian , Kenji Watanabe , Takashi Taniguchi , Qiming Shao

The high current density required by Magnetic Tunneling Junction (MTJ) switching driven by Spin Transfer Torque (STT) effect leads to large power consumption and severe reliability issues therefore hinder the timetable for STT Magnetic…

Mesoscale and Nanoscale Physics · Physics 2016-11-01 Lang Zeng , Tianqi Gao , Deming Zhang , Shouzhong Peng , Fanghui Gong , Xiaowan Qin , Mingzhi Long , Youguang Zhang , Weisheng Zhao

We demonstrate the reduction of critical spin-transfer torque (STT) switching currents in Co-Fe-B/MgO based magnetic tunnel junctions (MTJ) with perpendicular magnetization anisotropy (PMA). The junctions yield tunnel magnetoresistance…

Tunneling junctions containing no ferromagnetic elements have been fabricated and we show that distinct resistance states can be set by field cooling the devices from above the N\'eel along different orientations. Variations of the…

Magnetic tunnel junctions are nanoscale devices which have recently attracted interested in the context of frequency multiplexed spintronic neural networks, due to their interesting dynamical properties, which are defined during the…

Applied Physics · Physics 2024-08-29 Maksim Stebliy , Alex S. Jenkins , Luana Benetti , Elvira Paz , Ricardo Ferreira

In magnetic memory and logic devices, a magnet's magnetization is usually flipped with a spin polarized current delivering a spin transfer torque (STT). This mode of switching consumes too much energy and considerable energy saving can…

Mesoscale and Nanoscale Physics · Physics 2015-03-17 Kuntal Roy , Supriyo Bandyopadhyay , Jayasimha Atulasimha