Interplay of voltage control of magnetic anisotropy, spin transfer torque, and heat in the spin-orbit torque switching in three-terminal magnetic tunnel junctions

Autor: Viola Krizakova, Gouri Sankar Kar, Pietro Gambardella, Giacomo Sala, Sebastien Couet, Kevin Garello, Eva Grimaldi

Publikováno v: Physical Review Applied
Physical Review Applied, American Physical Society, 2021, 15, pp.054055. ⟨10.1103/PhysRevApplied.15.054055⟩
Physical Review Applied, 15 (5)
Physical Review Applied, 2021, 15, pp.054055. ⟨10.1103/PhysRevApplied.15.054055⟩

International audience; We use three-terminal magnetic tunnel junctions (MTJs) designed for field-free switching by spin-orbit torques (SOTs) to systematically study the impact of dual voltage pulses on the switching performance. We show that the con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23f4f201063272bad85d010768229ba7
http://arxiv.org/abs/2106.01054

Field-free switching of magnetic tunnel junctions driven by spin–orbit torques at sub-ns timescales

Autor: Viola Krizakova, Pietro Gambardella, Gouri Sankar Kar, Eva Grimaldi, Kevin Garello

Publikováno v: Applied Physics Letters, 116 (23)

We report time-resolved measurements of magnetization switching by spin–orbit torques in the absence of an external magnetic field in perpendicularly magnetized magnetic tunnel junctions (MTJs). Field-free switching is enabled by the dipolar field

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7be271b891b3261b29ddfb32f109c145
https://hdl.handle.net/20.500.11850/424416

SOT-MRAM 300mm integration for low power and ultrafast embedded memories

Autor: Manuel Baumgartner, N. Jossart, Johan Swerts, S. Van Beek, D. Crotti, Eva Grimaldi, Pietro Gambardella, Gouri Sankar Kar, Shreya Kundu, F. Yasin, Laurent Souriau, Kevin Garello, Sebastien Couet, Diana Tsvetanova, Enlong Liu, A. Fumemont, W. Kim, Kristof Croes, Siddharth Rao

Publikováno v: VLSI Circuits
2018 IEEE Symposium on VLSI Circuits
2018 IEEE Symposium on VLSI Circuits, Jun 2018, Honolulu, United States. pp.81-82, ⟨10.1109/VLSIC.2018.8502269⟩
Proceedings of the 2018 IEEE Symposium on VLSI Circuits

We demonstrate for the first time full-scale integration of top-pinned perpendicular MTJ on 300 mm wafer using CMOS-compatible processes for spin-orbit torque (SOT)-MRAM architectures. We show that 62 nm devices with a W-based SOT underlayer have ver

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a75051dd8003aabdeb9c8add87fb9d6c

Electrical synchronization of spin-torque oscillators driven by self-emitted high frequency current (Conference Presentation)

Autor: A. S. Jenkins, Julie Grollier, Eva Grimaldi, Akio Fukushima, Kay Yakushiji, P. Bortolotti, Hitoshi Kubota, Romain Lebrun, Shinji Yuasa, Sumito Tsunegi, Vincent Cros

Publikováno v: Spintronics IX.

The rich physics of spin transfer nano-oscillators (STNO) has provoked a huge interest to create a new generation of multi-functional microwave spintronic devices [1]. It has been often emphasized that their nonlinear behavior gives a unique opportun

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1e9c88e6a3f7572f0b17c1a9d355bc87
https://doi.org/10.1117/12.2237305

Spin-torque resonant expulsion of the vortex core for an efficient radiofrequency detection scheme

Autor: Hitoshi Kubota, Eva Grimaldi, Paolo Bortolotti, Shinji Yuasa, Olivier Klein, Kay Yakushiji, Akio Fukushima, Sumito Tsunegi, Romain Lebrun, G. de Loubens, A. S. Jenkins, Vincent Cros

Publikováno v: Nature Nanotechnology
Nature Nanotechnology, 2016, 11 (4), pp.360-364. ⟨10.1038/nnano.2015.295⟩
Nature Nanotechnology, Nature Publishing Group, 2016, 11 (4), pp.360-364. ⟨10.1038/nnano.2015.295⟩

It has been proposed that high-frequency detectors based on the so-called spin-torque diode effect in spin transfer oscillators could eventually replace conventional Schottky diodes due to their nanoscale size, frequency tunability and large output s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cafdba6fbe789916f124a04ec919e76
https://cea.hal.science/cea-01484743/document