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Ferroelectric tunneling junctions (FTJ) are considered to be the intrinsically most energy efficient memristors. In this work, specific electrical features of ferroelectric hafnium-zirconium oxide based FTJ devices are investigated.…

Voltage-induced dynamic switching in magnetic tunnel junctions (MTJs) is a writing technique for voltage-controlled magnetoresistive random access memory (VCMRAM), which is expected to be an ultimate non-volatile memory with ultra-low power…

Mesoscale and Nanoscale Physics · Physics 2022-11-15 Rie Matsumoto , Shinji Yuasa , Hiroshi Imamura

We report on the noise performance characteristics of magnetic sensors using both magnetic tunnel junction (MTJ) and giant magnetoresistance (GMR) elements. Each sensor studied has a notably different noise and detectivity. Of the sensors…

Materials Science · Physics 2021-02-24 J. E. Davies , J. D. Watts , J. Novotny , D. Huang , P. G. Eames

Antiferromagnetic Tunnel Junctions (AFMTJs) enable picosecond switching and femtojoule writes through ultrafast sublattice dynamics. We present the first end-to-end AFMTJ simulation framework integrating multi-sublattice…

Hardware Architecture · Computer Science 2026-02-10 Yousuf Choudhary , Tosiron Adegbija

Miniaturized, ultra-sensitive and easily integrable magnetometers are needed for many applications, like space exploration or health monitoring. Achieving this goal requires a magnetic sensor with high sensitivity and low noise. High…

Multiple neuromorphic applications require the tuning of two or more devices to a common signal. Various types of neuromorphic computation can be realized using spintronic oscillators, where the DC current induces magnetization precession,…

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

Altermagnets demonstrate significant potential in spintronics due to their unique non-relativistic spin-splitting properties, yet altermagnetic devices still face challenges in efficiently switching logic states. Here, we report…

Materials Science · Physics 2026-02-17 Yunfei Gao , Aolin Li , Zesen Fu , Bei Zhang , Haiming Duan , Fangping Ouyang

In this manuscript we propose a theoretical model where the magneto-resistive elements are modelled as fluctuating resistances to correct the output voltage noise of tunnel magnetic junction (MTJ) from standard electronic circuits. This…

The use of single molecules to design electronic devices is an extremely challenging and fundamentally different approach to further downsizing electronic circuits. Two-terminal molecular devices such as diodes were first predicted [1] and,…

There exists a significant challenge in developing efficient magnetic tunnel junctions with low write currents for non-volatile memory devices. With the aim of analysing potential materials for efficient current-operated magnetic junctions…

Mesoscale and Nanoscale Physics · Physics 2017-12-13 Matthew O. A. Ellis , Maria Stamenova , Stefano Sanvito

Over the last two decades, the new branch of spintronics, i.e., semiconductor spintronics, has gained more attention because it integrates the characteristics of conventional semiconductors, such as optical bandgap and charge carriers,…

Materials Science · Physics 2024-10-22 Pankaj Bhardwaj , Jarnail Singh , Vikram Verma , Ravi Kumar

Two promising strategies for achieving efficient control of magnetization in future magnetic memory and non-volatile spin logic devices are spin transfer torque from spin polarized currents and voltage-controlled magnetic anisotropy (VCMA).…

Materials Science · Physics 2012-09-06 Luqiao Liu , Chi-Feng Pai , D. C. Ralph , R. A. Buhrman

Magnetic tunnel junction (MTJ) spin torque oscillators (STO) have shown the potential to be used in a wide range of microwave and sensing applications. To evaluate potential uses of MTJ STO technology in various applications, an analytical…

Mesoscale and Nanoscale Physics · Physics 2015-01-20 Tingsu Chen , Anders Eklund , Ezio Iacocca , Saul Rodriguez , Gunnar Malm , Johan Åkerman , Ana Rusu

Spin-based electronics has evolved into a major field of research that broadly encompasses different classes of materials, magnetic systems, and devices. This review describes recent advances in spintronics that have the potential to impact…

The Heusler alloy is used as an electrode of magnetic tunneling junctions. The junctions are deposited by magnetron dc sputtering using shadow mask techniques with AlO_{x} as a barrier and cobalt as counter electrode. Measurements of the…

Other Condensed Matter · Physics 2009-11-10 A. Conca , S. Falk , G. Jakob , M. Jourdan , H. Adrian

Spintronic devices are a promising beyond-CMOS device option thanks to their energy efficiency and compatibility with CMOS. To accurately capture their multi-physics dynamics, a rigorous treatment of both spin and charge and their…

Mesoscale and Nanoscale Physics · Physics 2022-01-21 Hai Li , Dmitri E. Nikonov , Chia-Ching Lin , Kerem Camsari , Yu-Ching Liao , Chia-Sheng Hsu , Azad Naeemi , Ian A. Young

Although the development of spintronic devices has advanced significantly over the past decade with the use of ferromagnetic materials, the extensive implementation of such devices has been limited by the notable drawbacks of these…

Materials Science · Physics 2022-11-04 Kang Wang , Vineetha Bheemarasetty , Junhang Duan , Shiyu Zhou , Gang Xiao

Due to the massive parallel computing capability and outstanding image and signal processing performance, cellular neural network (CNN) is one promising type of non-Boolean computing system that can outperform the traditional digital logic…

Emerging Technologies · Computer Science 2016-09-21 Chenyun Pan , Azad Naeemi

One of the biggest challenges the current STT-RAM industry faces is maintaining a high thermal stability while trying to switch within a given voltage pulse and energy cost. In this paper, we present a physics based analytical model that…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 Kamaram Munira , William H. Butler , Avik W. Ghosh
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