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Spin-transfer torque magnetic random-access memory (STT-MRAM) relies on nanoscale magnetic tunnel junctions (MTJs) as its fundamental building blocks. Next-generation STT-MRAM requires strategies that simultaneously improve switching energy…

Spin transfer torque magnetic random access memory (STT-MRAM) is a promising candidate for next generation memory as it is non-volatile, fast, and has unlimited endurance. Another important aspect of STT-MRAM is that its core component, the…

Spin-transfer torque magnetoresistive random access memory (STT-MRAM) is an attractive alternative to current random access memory technologies due to its non-volatility, fast operation and high endurance. STT-MRAM does though have…

Mesoscale and Nanoscale Physics · Physics 2018-08-27 Noriyuki Sato , Fen Xue , Robert M. White , Chong Bi , Shan X. Wang

A new genre of Spin-Transfer Torque (STT) MRAM is proposed, in which bi-directional writing is achieved using thermoelectrically controlled magnonic current as an alternative to conventional electric current. The device uses a magnetic…

Materials Science · Physics 2011-08-12 Niladri N. Mojumder , Kaushik Roy , David W. Abraham

Spin transfer torque magnetic random access memory (STT-MRAM) is considered as one of the most promising candidates to build up a true universal memory thanks to its fast write/read speed, infinite endurance and non-volatility. However the…

Emerging Technologies · Computer Science 2015-06-04 Weisheng Zhao , Sumanta Chaudhuri , Celso Accoto , Jacques-Olivier Klein , Claude Chappert , Pascale Mazoyer

Significant scientific and technological progress in the field of spintronics is based on trilayer magnetic tunnel junction devices which principally rely on the physics of single barrier tunneling. While technologically relevant devices…

Mesoscale and Nanoscale Physics · Physics 2019-11-14 Abhishek Sharma , Ashwin. A. Tulapurkar , Bhaskaran Muralidharan

Magnetic Tunnel Junction (MTJ) based Spin-Transfer Torque Magnetic Random Access Memory (STT-MRAM) is poised to replace embedded Flash for advanced applications such as automotive microcontroller units. To achieve deeper technological…

Mesoscale and Nanoscale Physics · Physics 2025-02-28 Nicholas A. Lanzillo , Sergey Faleev , Aakash Pushp

A new class of spin-transfer torque magnetic random access memory (STT-MRAM) is discussed, in which writing is achieved using thermally initiated magnonic current pulses as an alternative to conventional electric current pulses. The…

Materials Science · Physics 2015-05-28 Niladri N. Mojumder , David W. Abraham , Kaushik Roy , D. C. Worledge

Spin Transfer Torque Random Access Memory (STT-RAM) has garnered interest due to its various characteristics such as non-volatility, low leakage power, high density. Its magnetic properties have a vital role in STT switching operations…

Hardware Architecture · Computer Science 2022-08-17 Saeed Seyedfaraji , Javad Talafy Daryani , Mohamed M. Sabry Aly , Semeen Rehman

Spin filtering and its back-action spin transfer torque (STT) are key ingredients of latest spintronic devices based on magnetic tunnel junctions (MTJs). Resonant tunneling (RT), implemented by design or occurring as parasitic effects, is…

Mesoscale and Nanoscale Physics · Physics 2025-10-27 Maciej Bazarnik , Anika Schlenhoff

We have developed and optimized two categories of spin transfer torque magnetic tunnel junctions (STT-MTJs) that exhibit a high tunnel magnetoresistance (TMR) ratio, low critical current, high outputpower in the micro watt range, and…

Magnetic random-access memory (MRAM) driven by spin-transfer torque (STT) is a major contender for future memory applications. The energy dissipation involved in writing remains problematic, even with the advent of more efficient…

Spin-orbit torque (SOT) based magnetic random access memory (MRAM) is envisioned as an emerging non-volatile memory due to its ultra-high speed and low power consumption. The field-free switching schema in SOT devices is of great interest…

Applied Physics · Physics 2020-07-03 Min Wang , Zhaohao Wang , Chao Wang , Weisheng Zhao

As one of the most promising emerging non-volatile memory (NVM) technologies, spin-transfer torque magnetic random access memory (STT-MRAM) has attracted significant research attention due to several features such as high density, zero…

Emerging Technologies · Computer Science 2020-01-16 Lizhou Wu , Mottaqiallah Taouil , Siddharth Rao , Erik Jan Marinissen , Said Hamdioui

Spin-orbit torques (SOT) provide a versatile tool to manipulate the magnetization of diverse classes of materials and devices using electric currents, leading to novel spintronic memory and computing approaches. In parallel to spin transfer…

Applied Physics · Physics 2022-07-26 Viola Krizakova , Manu Perumkunnil , Sebastien Couet , Pietro Gambardella , Kevin Garello

The concept of perpendicular shape anisotropy spin-transfer torque magnetic random-access memory (PSA-STT-MRAM) consists in increasing the storage layer thickness to values comparable to the cell diameter, to induce a perpendicular shape…

Mesoscale and Nanoscale Physics · Physics 2021-08-18 N. Caçoilo , S. Lequeux , B. M. S. Teixeira , B. Dieny , R. C. Sousa , N. A. Sobolev , O. Fruchart , I. L. Prejbeanu , L. D. Buda-Prejbeanu

We investigated the performance of spin transfer torque random access memory (STT-RAM) cell with cross shaped Heusler compound based free layer using micromagnetic simulations. We designed the free layer using Cobalt based Heusler…

Emerging Technologies · Computer Science 2014-01-28 Tangudu Bharat Kumar , Bhaskar Awadhiya , E. MeherAbhinav , Bahniman Ghosh , Bhupesh Bishnoi

The 'Brillouin zone spin filtering' mechanism of enhanced tunneling magnetoresistance (TMR) is described for magnetic tunnel junctions (MTJ) and studied on an example of the MTJ with hcp Co electrodes and hexagonal BN (h-BN) spacer. Our…

Materials Science · Physics 2015-12-16 Sergey V. Faleev , Stuart S. P. Parkin , Oleg N. Mryasov

Straintronic magneto-tunneling junction (s-MTJ) switches, whose resistances are controlled with voltage-generated strain in the magnetostrictive free layer of the MTJ, are extremely energy-efficient switches that would dissipate a few aJ of…

Emerging Technologies · Computer Science 2017-07-18 S. Dey Manasi , M. M. Al Rashid , J. Atulasimha , S. Bandyopadhyay , A. R. Trivedi

A new device structure for spin transfer torque based magnetic random access memory is proposed for on-chip memory applications. Our device structure exploits spin Hall effect to create a differential memory cell that exhibits fast and…

Mesoscale and Nanoscale Physics · Physics 2014-02-12 Yusung Kim , Sri Harsha Choday , Kaushik Roy
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