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of 6 542
pro vyhledávání: '"Kubota H"'
Autor:
Riou, M., Torrejon, J., Garitaine, B., Araujo, F. Abreu, Bortolotti, P., Cros, V., Tsunegi, S., Yakushiji, K., Fukushima, A., Kubota, H., Yuasa, S., Querlioz, D., Stiles, M. D., Grollier, J.
Publikováno v:
Phys. Rev. Applied 12, 024049 (2019)
The recent demonstration of neuromorphic computing with spin-torque nano-oscillators has opened a path to energy efficient data processing. The success of this demonstration hinged on the intrinsic short-term memory of the oscillators. In this study,
Externí odkaz:
http://arxiv.org/abs/1905.02695
Autor:
Riou, M., Araujo, F. Abreu, Torrejon, J., Tsunegi, S., Khalsa, G., Querlioz, D., Bortolotti, P., Cros, V., Yakushiji, K., Fukushima, A., Kubota, H., Yuasa, S., Stiles, M. D., Grollier, J.
Fabricating powerful neuromorphic chips the size of a thumb requires miniaturizing their basic units: synapses and neurons. The challenge for neurons is to scale them down to submicrometer diameters while maintaining the properties that allow for rel
Externí odkaz:
http://arxiv.org/abs/1904.11236
Autor:
Talatchian, P., Romera, M., Tsunegi, S., Araujo, F. Abreu, Cros, V., Bortolotti, P., Trastoy, J., Yakushiji, K., Fukushima, A., Kubota, H., Yuasa, S., Ernoult, M., Vodenicarevic, D., Hirtzlin, T., Locatelli, N., Querlioz, D., Grollier, J.
Can we build small neuromorphic chips capable of training deep networks with billions of parameters? This challenge requires hardware neurons and synapses with nanometric dimensions, which can be individually tuned, and densely connected. While nanos
Externí odkaz:
http://arxiv.org/abs/1904.11240
Autor:
Zhou, W., Sepehri-Amin, H., Taniguchi, T., Tamaru, S., Sakuraba, Y., Kasai, S., Kubota, H., Hono, K.
Publikováno v:
Appl. Phys. Lett. 114, 172403 (2019)
We investigated the dynamics of a novel design of spin torque oscillator (STO) for microwave assisted magnetic recording. Using Ni$_{80}$Fe$_{20}$ (NiFe) as the polarizer and Fe$_{67}$Co$_{33}$ (FeCo) as the field generating layer, we experimentally
Externí odkaz:
http://arxiv.org/abs/1901.04208
Autor:
Singh, Hanuman, Konishi, K., Bhuktare, S., Bose, A., Miwa, S., Fukushima, A., Yakushiji, K., Yuasa, S., Kubota, H., Suzuki, Y., Tulapurkar, A. A.
Publikováno v:
Phys. Rev. Applied 8, 064011 (2017)
In this article we demonstrate the injection locking of recently demonstrated spintronic feedback nano oscillator to microwave magnetic fields at integers as well fractional multiples of its auto oscillation frequency. Feedback oscillators have delay
Externí odkaz:
http://arxiv.org/abs/1711.00691
Autor:
Slivinski, L. C., Compo, G. P., Sardeshmukh, P. D., Whitaker, J. S., McColl, C., Allan, R. J., Brohan, P., Yin, X., Smith, C. A., Spencer, L. J., Vose, R. S., Rohrer, M., Conroy, R. P., Schuster, D. C., Kennedy, J. J., Ashcroft, L., Brönnimann, S., Brunet, M., Camuffo, D., Cornes, R., Cram, T. A., Domínguez-Castro, F., Freeman, J. E., Gergis, J., Hawkins, E., Jones, P. D., Kubota, H., Lee, T. C., Lorrey, A. M., Luterbacher, J., Mock, C. J., Przybylak, R. K., Pudmenzky, C., Slonosky, V. C., Tinz, B., Trewin, B., Wang, X. L., Wilkinson, C., Wood, K., Wyszynski, P.
Publikováno v:
Journal of Climate, 2021 Feb . 34(4), 1417-1438.
Externí odkaz:
https://www.jstor.org/stable/27076184
Akademický článek
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Autor:
Lebrun, R., Grollier, J., Bortolotti, P., Cros, V., Hamadeh, A., de Milly, X., Li, Y., de Loubens, G., Klein, O., Tsunegi, S., Kubota, H., Yakushiji, K., Fukushima, A., Yuasa, S.
Publikováno v:
Phys. Rev. B 95, 134444 (2017)
The mutual interaction between the different eigenmodes of a spin-torque oscillator can lead to a large variety of physical mechanisms from mode hopping to multi-mode generation, that usually reduce their performances as radio-frequency devices. To t
Externí odkaz:
http://arxiv.org/abs/1610.10007
Autor:
Kumar, Dinesh, Konishi, K., Kumar, Nikhil, Miwa, S., Fukushima, A., Yakushiji, K., Yuasa, S., Kubota, H., Tomy, C. V., Prabhakar, A., Suzuki, Y., Tulapurkar, A.
Publikováno v:
Scientific Reports 6, 30747 (2016)
The transfer of spin angular momentum to a nanomagnet from a spin polarized current provides an efficient means of controlling the magnetization direction in nanomagnets. A unique consequence of this spin torque is that the spontaneous oscillations o
Externí odkaz:
http://arxiv.org/abs/1608.03708
Autor:
Mizrahi, A., Locatelli, N., Lebrun, R., Cros, V., Fukushima, A., Kubota, H., Yuasa, S., Querlioz, D., Grollier, J.
When fabricating magnetic memories, one of the main challenges is to maintain the bit stability while downscaling. Indeed, for magnetic volumes of a few thousand nm3, the energy barrier between magnetic configurations becomes comparable to the therma
Externí odkaz:
http://arxiv.org/abs/1605.06932