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Embedded non-volatile memory technologies such as resistive random access memory (RRAM) and spin-transfer torque magnetic RAM (STT MRAM) are increasingly being researched for application in neuromorphic computing and hardware accelerators…

Mesoscale and Nanoscale Physics · Physics 2021-12-15 Debasis Das , Xuanyao Fong

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…

The magnetic tunnel junction (MTJ) is a backbone device for spintronics. Realizing next generation energy efficient MTJs will require operating mechanisms beyond the standard means of applying magnetic fields or large electrical currents.…

As an unconventional magnet, altermagnetism attracts great interest in condensed matter physics and applies a new research platform for the spintronics. Since the tunneling magnetoresistance (TMR) effect is an important research aspect in…

Mesoscale and Nanoscale Physics · Physics 2025-09-09 Yu-Fei Sun , Yue Mao , Yu-Chen Zhuang , Qing-Feng Sun

Combining spin-orbit (SOT) and spin-transfer torques (STT) provides a practical approach for field-free switching in spin-orbit torque magnetic random-access memory (SOT-MRAM), a prerequisite for industrial deployment, but can compromise…

Mesoscale and Nanoscale Physics · Physics 2026-05-27 Kuldeep Ray , Jérémie Vigier , Sylvain Martin , Chloé Bouard , Nicolas Lefoulon , Marc Drouard , Gilles Gaudin

Strain-mediated voltage control of magnetization in piezoelectric/ferromagnetic systems is a promising mechanism to implement energy-efficient spintronic memory devices. Here, we demonstrate giant voltage manipulation of MgO magnetic tunnel…

Mesoscale and Nanoscale Physics · Physics 2016-09-02 Zhengyang Zhao , Mahdi Jamali , Noel D'Souza , Delin Zhang , Supriyo Bandyopadhyay , Jayasimha Atulasimha , Jian-Ping Wang

We demonstrate single shot al optical switching (AOS) in rare earth free CoFeB/MgO magnetic tunnel junctions (MTJs), a material system widely adopted in spin transfer torque magnetic random access memory (STT MRAM). By tuning the capping…

The tunnel current and magnetoresistance (TMR) are investigated in magnetic tunnel junctions consisting of a spin-filter tunnel barrier, sandwiched between a ferromagnetic (FM) electrode and a nonmagnetic (NM) electrode. The investigations…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Alireza Saffarzadeh

Prior studies have shown that the retention time of the non-volatile spin-transfer torque RAM (STT-RAM) can be relaxed in order to reduce STT-RAM's write energy and latency. However, since different applications may require different…

Computers and Society · Computer Science 2024-07-30 Dhruv Gajaria , Kyle Kuan , Tosiron Adegbija

We presents a new strategy to create a van der Waals-based magnetic tunnel junction (MTJ) that consists of a three-atom layer thickness of graphene (Gr) sandwiched with hexagonal boron nitride (hBN) by introducing a monoatomic Boron vacancy…

Mesoscale and Nanoscale Physics · Physics 2026-03-27 Halimah Harfah , Yusuf Wicaksono , Gagus Ketut Sunnardianto , Muhammad Aziz Majidi , Koichi Kusakabe

Magnetic molecules possess a high potential as building blocks for the design of spintronic devices. Moreover, the use of molecular materials opens the way for the controlled use of bottom-up, e.g. supramolecular, processing techniques…

Mesoscale and Nanoscale Physics · Physics 2013-04-25 Matias Urdampilleta , Svetlana Klyatskaya , Jean-Pierre Cleuziou , Mario Ruben , Wolfgang Wernsdorfer

Superparamagnetic magnetic tunnel junctions (sMTJs) are promising components for true random number generation and probabilistic computing. Achieving high-frequency fluctuation while maintaining reliable control over output level is…

Applied Physics · Physics 2026-01-23 Qi Jia , Jian-Ping Wang

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

Spin-Torque-Transfer RAM (STTRAM) is a promising technology however process variation poses serious challenge to sensing. To eliminate bit-to-bit process variation we propose a reference-less, destructive slope detection technique which…

Emerging Technologies · Computer Science 2023-06-08 Seyedhamidreza Motaman , Swaroop Ghosh , Jae-Won Jang , Anirudh Iyengar , Rekha Govindaraj , Zakir Khondker

We have investigated Surface Acoustic Wave (SAW) induced ferromagnetic resonance (FMR) assisted Spin Transfer Torque (STT) switching of perpendicular MTJ (p-MTJ) with inhomogeneities using micromagnetic simulations that include the effect…

Mesoscale and Nanoscale Physics · Physics 2020-09-22 Walid Al Misba , Md. Mahadi Rajib , Dhritiman Bhattacharya , Jayasimha Atulasimha

With the rise in in-memory computing architectures to reduce the compute-memory bottleneck, a new bottleneck is present between analog and digital conversion. Analog content-addressable memories (ACAM) are being recently studied for…

Spin-valve is a microelectronic device in which high and low resistance states are realized by utilizing both charge and spin of carriers. Spin-valve structures used in modern hard drive read-heads and magnetic random access memories…

Conventional computing paradigm struggles to fulfill the rapidly growing demands from emerging applications, especially those for machine intelligence, because much of the power and energy is consumed by constant data transfers between…

The emerging Spin Transfer Torque Magnetic Tunnel Junction (STT-MTJ) technology exhibits interesting stochastic behavior combined with small area and low operation energy. It is, therefore, a promising technology for security applications,…

Cryptography and Security · Computer Science 2023-07-28 Ben Perach , Shahar Kvatinsky

Magnetic tunnel junctions (MTJs) are basic building blocks for devices such as magnetic random access memories (MRAMs). The relevance for modern computation of non-volatile high-frequency memories makes ac-transport measurements of MTJs…

Mesoscale and Nanoscale Physics · Physics 2017-02-08 Subir Parui , Mário Ribeiro , Ainhoa Atxabal , Amilcar Bedoya-Pinto , Xiangnan Sun , Roger Llopis , Fèlix Casanova , Luis E. Hueso