Alberto Passos Guimarães is Emeritus Researcher at the Centro Brasileiro de Pesquisas Físicas (CBPF) in Rio de Janeiro.

He obtained his Ph.D. at the University of Manchester, England, and has been a visitor at MIT, Cambridge, and at the Physics Institute in Uppsala, Sweden; he also visited for short periods the Technical University of Darmstadt, and the University of St. Andrews, United Kingdom. He is a member of the Brazilian Academy of Sciences and was awarded the National Order for Merit in Science.

His main areas of present interest are the magnetism of nanoscale systems, studied with different experimental techniques and with micromagnetic simulation. He has also been active in popularization of science, being the President of the Instituto Ciência Hoje, that publishes the magazines ‘Ciência Hoje’ and 'Ciência Hoje das Crianças'.

Books

1. Principles of Nanomagnetism, Springer, (Berlin, 2009). Details and Errata .
2. From Lodestone to Supermagnets: Understanding Magnetic Phenomena, Wiley-VCH (Berlin, 2005). Reviews and Errata . Brazilian Edition (A Pedra com Alma), Civilização Brasileira (Rio de Janeiro, 2011). Reviews and Errata .
3. Magnetism and Magnetic Resonance in Solids, John Wiley (New York, 1998). Reviews and Errata . Brazilian Edition, Edusp (São Paulo, 2009). Details and Errata .

Libraries that carry these books (Listed in WorldCat)

Articles (2005-2016)

1. Controlling energy transfer time between two coupled magnetic vortex-state disks H. Vigo-Cotrina and A. P. Guimarães, J. Appl. Phys. 120, 213901 (2016).
   (pdf)
2. Thermally activated processes and superparamagnetism in Bi12MnO20 nanoparticles: A comparative study, L.A.S. de Oliveira, A. Pentón-Madrigal, A.P. Guimarães, J.P. Sinnecker, J. Magn. Magn. Mater. 401 890–896 (2016).
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3. Indirect switching of vortex polarity through magnetic dynamic coupling, G.B.M. Fior, E.R.P. Novais, J.P. Sinnecker, A.P. Guimarães, and F. Garcia, J. Appl. Phys. 119, 093906 (2016).
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4. Interaction between magnetic vortex cores in a pair of nonidentical nanodisks, J.P. Sinnecker, H. Vigo-Cotrina, F. Garcia, E.R.P. Novais, and A.P. Guimarães, J. Appl. Phys. 115, 203902 (2014).
   (pdf)
5. Effect of perpendicular uniaxial anisotropy on the annihilation fields of magnetic vortices, E.R.P. Novais , S. Allende, D. Altbir, P. Landeros , F. Garcia, A.P. Guimarães, J. Appl. Phys. 114, 153905 (2013).
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6. Magnetic vortex echoes, F. Garcia, J. P. Sinnecker, E. R. P. Novais and A. P. Guimarães, J. Appl. Phys. 112 (2012) 113911-5; http://dx.doi.org/10.1063/1.4768446.
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7. Multi-quantum echoes in GdAl2 zero-field high-resolution NMR, J.R. Tozoni, J. Teles, R. Auccaise, R. Oliveira-Silva, C. Rivera-Ascona, E.L.G. Vidoto, A.P. Guimarães, I.S. Oliveira, T.J. Bonagamba, J. Magn. Res., 212 (2011) 265-273; doi:10.1016/j.jmr.2011.07.003.
   (abstract)
8. Properties of magnetic nanodots with perpendicular anisotropy, E. R. P. Novais, P. Landeros, A. G. S. Barbosa, M. D. Martins, F. Garcia, A. P. Guimarães, J. Appl. Phys. 110, 053917 (2011); doi:10.1063/1.3631081.
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9. Tailoring magnetic vortices in nanostructures. F. Garcia, H. Westfahl, J. Schoenmaker, E. J. Carvalho, A. D. Santos, M. Pojar, A. C. Seabra, R. Belkhou, A. Bendounan, E. R. P. Novais, A. P. Guimarães. Appl. Phys. Lett., 97, 022501 (2010); doi:10.1063/1.3462305.
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10. Model for the growth of electrodeposited ferromagnetic aggregates under an in-plane magnetic field. C. Cronemberger, L.C. Sampaio, A.P. Guimarães, and P. Molho, Phys. Rev. E 81, 021403 (2010). (doi: 10.1103/PhysRevE.81.021403)
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11. Magnetoresistance and magnetization reversal of single Co nanowires. R. A. Silva, T. S. Machado, G. Cernicchiaro, A. P. Guimaraes, and L. C. Sampaio. Phys. Rev., B 79, 134434 (2009). (doi: 10.1103/PhysRevB.79.134434)
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12. Magnetic behavior of electrodeposited cobalt nanowires using different electrolytic bath acidities. CAFFARENA, V. ; GUIMARAES, A. P. ; FOLLY, W. ; E.M. Silva ; CAPITANEO, J. Materials Chemistry and Physics, v. 107, p. 297-304, (2008). (doi:10.1016/j.matchemphys.2007.07.016)
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13. Magnetic properties of Fe90Zr7B3 ribbons studied by FMR and magnetization. FOLLY, W ; CAFFARENA, V ; SOMMER, R ; CAPITANEO, J ; GUIMARAES, A . Journal of Magnetism and Magnetic Materials, v. 320, p. e358-e361, (2008). (doi:10.1016/j.jmmm.2008.02.070)
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14. Zipping method applied to Barkhausen noise: A new tool to investigate the micromagnetic disorder in amorphous magnetic materials. GUIMARAES, A. P. ; GUNDEL, A. ; SANTI, L. ; SOMMER, R. Journal of Alloys and Compounds, v. 434, p. 604-607, (2007).(doi:10.1016/j.jallcom.2006.08.090)
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15. Magnetocaloric properties of the Ni2Mn1-x(CuCo)xGa Heusler alloys. GOMES, A.M ; M. Khan ; S. Stadler ; N. Ali ; DUBENKO, I. S. ; TAKEUCHI, A. Y. ; GUIMARAES, A. P. . Journal of Applied Physics, v. 99, p. 8Q106, (2006). (DOI:10.1063/1.2164415)
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16. The magnetocaloric properties of Ni2Mn1-xCuxGa. S. STADLER ; M. Khan ; MITCHELL, J. ; N. Ali ; GOMES, A.M ; DUBENKO, I. S. ; TAKEUCHI, A. Y. ; GUIMARAES, A. P. . Applied Physics Letters, v. 88, p. 192511, (2006). (DOI:10.1063/1.2202751)
    (pdf)
17. Preparation of electrodeposited cobalt nanowires. CAFFARENA, V. ; CAPITANEO, J. ; SIMAO, R. A. ; GUIMARAES, A. P. Materials Research, v. 9, p. 205-208, (2006). (doi: 10.1590/S1516-14392006000200017)
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18. La(Fe1-xCox)(11.44)Al-1.56: A composite system for Ericsson-cycle-based magnetic refrigerators. GOMES, A.M ; PROVETTI, J.R ; TAKEUCHI, A. Y. ; PASSAMANI, E.C. ; LARICA, C. ; GUIMARAES, A. P. . Journal of Applied Physics, v. 99, p. 116107, (2006). (DOI:10.1063/1.2203389)
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19. NMR, magnetic and structural study of Fe-Si-X (X = Nb, Ta) alloys. BARBATTI, C. ; TURTELLI, R. S. ; SCHONHART, M. ; SASSIK, H. ; SINNECKER, J. ; SINNECKER, E. ; SARTHOUR, R. ; GUIMARAES, A. P. ; GROSSINGER, R. Journal of Magnetism and Magnetic Materials, Amsterdam, v. 290, p. 612, (2005). (doi:10.1016/j.jmmm.2004.11.329)
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20. Magnetocaloric effect of the (Pr,Ca)MnO3 manganite at low temperatures. GOMES, A.M ; GARCIA, F. ; GUIMARAES, A. P. ; REIS, M. ; V.S. Amaral ; TAVARES, P. Journal of Magnetism and Magnetic Materials, Amsterdam, v. 290, p. 694, (2005). (doi:10.1016/j.jmmm.2004.11.339)
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21. Quantum logical operations for spin 3/2 quadrupolar nuclei monitored by quantum state tomography. BONK, F. ; AZEVEDO, E. ; SARTHOUR, R. ; BULNES, J. ; FREITAS, J.C.C. ; GUIMARAES, A. P. ; OLIVEIRA, I. S. ; BONAGAMBA, T. . Journal of Magnetic Resonance. Series B, Amsterdam, v. 175, p. 226, (2005). (doi:10.1016/j.jmr.2005.04.009)
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22. Modeling of electrical behavior of La0.7Ca0.3MnO3 ceramic using impedance spectroscopy. KUMAR, V. ; O.P. Thakur ; L. Pandey ; GUIMARAES, A. P. ; A. Goel ; O.M. Parkash ; D. Kumar . Modern Physics Letters B, v. 19, p. 697, (2005). (DOI: 10.1142/S0217984905008621)
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23. Effect of stress on the entropy calculated by applying the zipping method to Barkhausen noise. GUNDEL, A. ; SANTI, L. ; GUIMARAES, A. P. ; SOMMER, R. Journal of Magnetism and Magnetic Materials, v. 290, p. 1165, (2005). (doi:10.1016/j.jmmm.2004.11.503)
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24. Effect of the addition of Cr, Ta and Nb on structural and magnetic properties of Fe–Si alloys, RS Turtelli, R. Sato, A. Penton-Madrigal, CF Barbatti, R. Grossinger, H. Sassik, E. Estevez-Rams, R.S. Sarthour, EHCP Sinnecker, AP Guimarães, J. Magn. Magn. Mat. 294, E151-E154 (2005). (doi:10.1016/j.jmmm.2005.03.073)
    (pdf)

Other publications

1. GUIMARAES, A. P. . Educação científica (entrevista), Folha Dirigida, 28/06/2012. (pdf)
2. GUIMARAES, A. P. . Coisas impossíveis em geral não acontecem, Ciência Hoje, v. 292, p. 63 - 63, 01 mai. 2012. (pdf)
3. GUIMARAES, A. P. . The beginnings of the study of Magnetism in Brazil, Ciência e Sociedade 007/11, CBPF (03/2011). (pdf)
4. GUIMARAES, A. P. . Brasil em 50º lugar na copa do mundo. Jornal do Brasil, Rio de Janeiro, 11 fev. 2008. (pdf)
5. GUIMARAES, A. P. . Ciência e crianças. Ciência Hoje, Rio de Janeiro, v. 240, p. 17 - 17, 01 ago. 2007. (pdf)

Organization of International Conferences

1. Nuclear Methods in Magnetism (2000) (Chair)
2. Latin-American Workshop on Magnetism and Magnetic Materials (2007) (Chair)
3. Nanomagnetism, Spin Electronics and Quantum Optics (November 2009) (Chair)

(I. Ciência Hoje)