Effect of the dipolar coupling on the precessional magnetization switching in two-dimensional arrays of single-domain nano-ellipses

Autor: J. C. S. Gomes, D. Toscano, E. L. M. Paixão, C. I. L. de Araujo, F. Sato, R. A. Dias, P. Z. Coura, S. A. Leonel

Publikováno v: AIP Advances, Vol 8, Iss 9, Pp 095017-095017-7 (2018)

Various spintronic devices use single-domain magnetic nanoparticles as unit cells. Herein, we investigated interparticle dipole-dipole interactions in arrays of Permalloy single-domain nano-ellipses through micromagnetic simulations. In this study, t

Externí odkaz: https://doaj.org/article/da98d42bf1f94e74bfac103ad2d7c893

Room temperature two terminal tunnel magnetoresistance in a lateral graphene transistor

Autor: Pedro Alpuim, C. Liao, Jérôme Borme, C. I. L. de Araujo, H. A. Teixeira, D. Schafer, Iuri S. Brandt, Rayssa Carneiro Ferreira, André A. Pasa, O. O. Toro, Luana Benetti, Paulo P. Freitas

Publikováno v: Nanoscale. 13(47)

We investigate the behavior of both pure spin and spin-polarized currents measured with four-probe non-local and two probe local configurations up to room temperature and under an external gate voltage in a lateral graphene transistor, produced using

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e04aeda0bace8f33915fc6bcbb54eba
https://pubmed.ncbi.nlm.nih.gov/34842882

Periodic Néel skyrmion transport

Autor: A. R. Pereira, C. I. L. de Araujo, L.G.S. Oliveira, R.L. Silva, L. Resse

Publikováno v: Physics Letters A. 383:1655-1659

In this work, we have used the MuMax3 software to simulate devices consisting of a ferromagnetic thin film placed over a heavy metal thin film. The devices are two interconnected partial-disks where a Neel domain wall is formed in the disks junction.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::50cbc4b82bccec18d137552eefc8dfc7
https://doi.org/10.1016/j.physleta.2019.02.014

Controlling domain wall oscillations in bent cylindrical magnetic wires

Autor: C. I. L. de Araujo, Vagson L. Carvalho-Santos, Oksana Chubykalo-Fesenko, R. Cacilhas, Roberto Moreno, Dora Altbir

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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[EN] Magnetic cylindrical nanowires are promising candidates for future three-dimensional nanotechnology. Domain walls (DWs) in magnetic nanowires play the role of information carriers, and the development of applications requires proper description

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2f335cb7590b3f67e456671d34ce83a
http://hdl.handle.net/10261/216467

Tuning magnetic monopole population and mobility in unidirectional array of nanomagnets as a function of lattice parameters

Autor: R. S. Gonçalves, R. P. Loreto, T. S. de Paiva, J. Borme, P. P. Freitas, C. I. L. de Araujo

Publikováno v: Gonçalves, R S, Loreto, R P, De Paiva, T S, Borme, J, Freitas, P P & De Araujo, C I L 2019, ' Tuning magnetic monopole population and mobility in unidirectional array of nanomagnets as a function of lattice parameters ', Applied Physics Letters, vol. 114, no. 14, 142401 . https://doi.org/10.1063/1.5088219

Sets of nanomagnets are often utilized to mimic cellular automata in design of nanomagnetic logic devices or frustration and emergence of magnetic charges in artificial spin ice systems. in previous work we showed that unidirectional arrangement of n

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14c7e55d0e5dee4b130165f99c3f48e7
https://cris.vtt.fi/en/publications/b744353f-4aed-4325-9429-1c5fc928435a