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Relaxation-free and inertial switching in synthetic antiferromagnets subject to super-resonant excitation

Autor: Koop, B. C., Descamps, T., Korenivski, V.

Applications of magnetic memory devices greatly benefit from ultra-fast, low-power switching. Here we propose how this can be achieved efficiently in a nano-sized synthetic antiferromagnet by using perpendicular-to-the-plane picosecond-range magnetic

Externí odkaz: http://arxiv.org/abs/1604.00559

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Static and dynamic properties of vortex pairs in asymmetric nanomagnets

Autor: Koop, B. C., Gruschke, M., Descamps, T., Bondarenko, A., Ivanov, B. A., Korenivski, V.

Publikováno v: AIP Advances 6, 056406 (2016)

Stacked spin-vortex pairs in magnetic multilayered nanopillars, with vertical separation between the vortices small compared to the vortex core size, exhibit spin dynamics absent in individual vortices. This dynamics is nonlinear and is due to the st

Externí odkaz: http://arxiv.org/abs/1511.03092

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Akademický článek

Carotenoid pigmentation in salmon : variation in expression at BCO2-l locus controls a key fitness trait affecting red coloration

Autor: Lehnert, S. J., Christensen, K. A., Vandersteen, W. E., Sakhrani, D., Pitcher, T. E., Heath, J. W., Koop, B. F., Heath, D. D., Devlin, R. H.

Publikováno v: Proceedings: Biological Sciences, 2019 Oct . 286(1913), 1-8.

Externí odkaz: https://www.jstor.org/stable/26837985

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Resonant state selection in synthetic ferrimagnets

Autor: Koop, B. C., Dzhezherya, Yu. I., Demishev, K., Iurchuk, V., Worledge, D. C., Korenivski, V.

Publikováno v: Appl. Phys. Lett. 103, 142408 (2013)

Resonant activation of a synthetic antiferromagnet (SAF) is known to result in a dynamic running state, where the SAF's symmetric spin-flop pair continuously rotates between the two antiparallel ground states of the system, with the two magnetic mome

Externí odkaz: http://arxiv.org/abs/1302.6483

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Core-Core Dynamics in Spin Vortex Pairs

Autor: Cherepov, S. S., Koop, B. C., Korenivski, V., Worledge, D. C., Galkin, A. Yu., Khymyn, R. S., Ivanov, B. A.

Publikováno v: Phys. Rev. Lett. 109, 097204 (2012)

We investigate magnetic nano-pillars, in which two thin ferromagnetic nanoparticles are separated by a nanometer thin nonmagnetic spacer and can be set into stable spin vortex-pair configurations. The 16 ground states of the vortex-pair system are ch

Externí odkaz: http://arxiv.org/abs/1110.4430

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