Zobrazeno 1 - 10
of 176
pro vyhledávání: '"De Araújo, C. A. A."'
Autor:
Duarte, D. G., de Souza, S. F., de Oliveira, L. B., Junior, E. B. M., de Araujo, E. N. D., Fonseca, J. M., de Araujo, C. I. L.
Artificial spin ices (ASI), containing magnetic monopole quasi-particles emerging at room temperature, have been investigated as a promising system to be applied in alternative low-power information technology devices. However, restrictions associate
Externí odkaz:
http://arxiv.org/abs/2406.17775
Autor:
Nascimento, F. S., de Oliveira, L. B., Duarte, D. G., de Araujo, C. I. L., Moura-Melo, W. A., Pereira, A. R.
Magnetic structure factor (MSF) is employed to investigate the ground state degeneracy in rectangular-like artificial spin ices. Our analysis considers the importance of nanoislands size via dumbbell model approximation. Pinch points in MSF and resid
Externí odkaz:
http://arxiv.org/abs/2310.09662
Autor:
Duarte, D. G., de Oliveira, L. B., Nascimento, F. S., Moura-Melo, W. A., Pereira, A. R., de Araujo, C. I. L.
Magnetic monopole unpairing as a function of external magnetic fields is presented as a fingerprint of this emergent quasiparticles freedom in a two-dimensional artificial spin ice system. Such freedom, required for example for further application in
Externí odkaz:
http://arxiv.org/abs/2207.06204
Autor:
de Araujo, C. A. Paz, Celinska, Jolanta, McWilliams, Chris R., Shifren, Lucian, Yeric, Greg, Huang, X. M. Henry, Suryavanshi, Saurabh Vinayak, Rosendale, Glen, Afanas'ev, Valeri, Marino, Eduardo C., Narayan, Dushyant Madhav, Dessau, Daniel S
Transition metal oxides (TMOs) and post-TMOs (PTMOs), when doped with Carbon, show non-volatile current-voltage (I-V) characteristics, which are both universal and repeatable. We have shown spectroscopic evidence of the introduction of carbon-based i
Externí odkaz:
http://arxiv.org/abs/2204.07656
Autor:
de Araujo, C. I. L., Teixeira, H. A., Toro, O. O., Liao, C., Borme, J., Benetti, L. C., Schafer, D., Brandt, I. S., Ferreira, R., Alpuim, P., Freitas, P. P., Pasa, A. A.
Publikováno v:
Nanoscale 2021
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 external gate voltage in a lateral graphene transistor, produced using a
Externí odkaz:
http://arxiv.org/abs/2111.10606
Autor:
Júnior, M. L. Pereira, de Araújo, C. M. Viana, de Sousa, J. M., Júnior, R. T. de Sousa, Júnior, L. F. Roncaratti, Giozza, W. F., Júnior, L. A. Ribeiro
Publikováno v:
Condensed Matter 5, 73, 2020
We carried out fully-atomistic reactive molecular dynamics simulations to study the elastic properties and fracture patterns of transition metal dichalcogenide (TMD) MoX2 (X=S, Se, Te) membranes, in their 2H and 1T phases, within the framework of the
Externí odkaz:
http://arxiv.org/abs/2010.11976
Autor:
Toscano, D., Santece, I. A., Guedes, R. C. O., Assis, H. S., Miranda, A. L. S., de Araujo, C. I. L., Sato, F., Coura, P. Z., Leonel, S. A.
Publikováno v:
Journal of Applied Physics 127, 193902 (2020)
Micromagnetic simulations have been performed to investigate the controllability of the skyrmion position in antiferromagnetic nanotracks with their magnetic properties modified spatially. In this study we have modeled magnetic defects as local varia
Externí odkaz:
http://arxiv.org/abs/2003.00907
Autor:
Toscano, D., Mendonça, J. P. A., Miranda, A. L. S., de Araujo, C. I. L., Sato, F., Coura, P. Z., Leonel, S. A.
Micromagnetic simulations have been performed to investigate the suppression of the skyrmion Hall effect in nanotracks with their magnetic properties strategically modified. In particular, we study two categories of magnetically modified nanotracks.
Externí odkaz:
http://arxiv.org/abs/1912.03403
Autor:
Gonçalves, R. S., Gomes, A. C. C., Loreto, R. P., de Araujo, C. I. L., Nascimento, F. S., Moura-Melo, W. A., Pereira, A. R.
We study planar rectangular-like arrays composed by macroscopic dipoles (magnetic bars with size around a few centimeters) separated by lattice spacing a and b along each direction. Physical behavior of such macroscopic artificial spin ice (MASI) sys
Externí odkaz:
http://arxiv.org/abs/1909.05296
Autor:
de Araujo, C. I. L., Gomes, J. C. S., Toscano, D., Paixao, E. L. M., Coura, P. Z., Sato, F., Massote, D. V. P., Leonel, S. A.
In this work we perform investigations of the competition between domain-wall pinning and attraction by anti-notches and finite device borders. The conditions for optimal geometries, which can attain a stable domain-wall pinning, are presented. This
Externí odkaz:
http://arxiv.org/abs/1905.04504