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Jérôme Depeyrot

Doutor (Université de Paris VII, França, 1994); pós-doutorado (Centre National d'Etudes des Telecommunications, França, 1994-1995; University of Colorado, EUA, 1995). Professor Associado. Núcleo de Física Experimental. Áreas de atuação: Físico-Química, com ênfase em Química do Estado Condensado, atuando principalmente em síntese e design de nanocolóides magnéticos; Propriedades eletro-químicas; Estrutura local de nanocristais magnéticos; Propriedades magnéticas e magneto-ópticas em nanoescala; Aplicações em nanobiotecnologia.

♦ sala: ICC - BSS 321

♦ telefone: (61) 3107-7818 / 7780 / 7781

♦ e-mail:
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Últimos trabalhos

M. A. G. Soler, J. Depeyrot, P. C. Morais, J. A. N. T. Santos, L. M. R. Scolfaro, E. C. F. da Silva, R. Enderlein, G. Weimann, G. Trankle, "Photoreflectance measurements in GaAs/AlGaAs asymmetric quantum well", Superlattices and Microstructures 21, 581 (1997)

G. Wang, P. Tronc, R. Melliti, E. Mao, A. Majerfeld, A. Sanz-Hervas, J. Depeyrot, B. W. Kim, "Photoreflectance study of [111] GaAs(AlGaAs) quantum wells at room temperature", Physica Status Solidi

F. A. Tourinho, J. Depeyrot, G. J. da Silva, M. C. L. Lara, "Electric double layered fluids (EDL-MF) based of spinel ferrite nanostructures [(M+2 1-x Fe+3 x]A [Fe+3 2-x M+2 x]B O-2 1, Brazilian Journal of Physics 28, 413 (1998)

E. Hasmonay, J. Depeyrot, M. H. Sousa, F. A. Tourinho, J.-C. Bacri, R. Perzynski, "Optical properties of nickel ferrite ferrofluids", Journal of Magnetism and Magnetic Materials 201, 195 (1999)

F. A. Tourinho, J. Depeyrot, G. J. da Silva, "Electric double layered magnetic fluids (EDL-MF) based on spinel ferrite nanostructures", Brazilian Journal of Physics 28, 413 (1999)

E. Hasmonay, J. Depeyrot, M. H. Sousa, F. A. Tourinho, J.-C. Bacri, R. Perzinski, Yu. L. Raikher, I. Rosenman, Journal of Applied Physics 88, 6628 (2000)

M. H. Sousa, A. F. Tourinho, J. Depeyrot, G. J. Silva, "Electrical double layered magnetic fluids based on copper, nickel and zinc ferrite nanoparticles", Journal of Physical Chemistry A (2000)

M. H. Sousa, F. A. Tourinho, J. Depeyrot, G. J. da Silva, M. C. F. L. Lara, "New electric double-layered magnetic fluids based on copper, nickel, and zinc ferrite nanostructures", Journal of Chemical Physics B 105, 1168 (2001)

R. Itri, J. Depeyrot, F. A. Tourinho, M. H. Sousa, "Nanoparticle chain-like formation in electrical double-layered magnetic fluids evidenced by small-angle X-ray scattering", European Journal of Physics E 4, 201 (2001)

M. H. Sousa, E. Hasmonay, J. Depeyrot, F. A. Tourinho, J.-C. Bacri, E. Dubois, R. Perzynski, Yu. L. Raikher, "NiFe2O4 nanoparticles in ferrofluids: evidence of spin disorder in the surface layer", Journal of Magnetism and Magnetic Materials 242-245, 572 (2002)

A. F. C. Campos, F. A. Tourinho, T. A. P. G. Cotta, J. Depeyrot, "A theoretical approach of succimer complexation at the surface of ferrite nanoparticles in order to improve the synthesis of biocompatible magnetic fluids", European Cells and Materials3 (Suppl. 2), 151 (2002)

C. Y. Matuo, F. A. Tourinho, M. H. Souza, J. Depeyrot, A. M. Figueiredo Neto, "Lyotropic ferronematic liquid crystals based on new Ni, Cu and Zn ionic magnetic fluids", Brazilian Journal of Physics 32, 458 (2002)

F. A. Tourinho, A. F. C. Campos, R. Aquino, M. C. F. L. Lara, G. J. da Silva, J. Depeyrot, "Surface charge density determination in electric double layered magnetic fluids", Brazilian Journal of Physics 32, 501 (2002)

R. Aquino, F. A. Tourinho, R. Itri, M. C. F. e Lara, J. Depeyrot, "Size control of MnFe2O4 nanoparticles in electric double layered magnetic fluids synthesis", Journal of Magnetism and Magnetic Materials 252, 23 (2002)

J. Depeyrot, E. C. Sousa, R. Aquino, F. A. Tourinho, E. Dubois, J. C. Bacri, R. Perzynski, "Rare earth doped maghemite EDL-MF: a perspective for nanoradiotherapy?", Journal of Magnetism and Magnetic Materials 252, 375 (2002)

F. A. Tourinho, A. F. C. Campos, R. Aquino, M. C. F. L. Lara, J. Depeyrot, "Size dependence of the surface charge density in EDL-MF", Journal of Magnetism and Magnetic Materials 252, 29 (2002)

M. H. Souza, E. Hasmonay, J. Depeyrot, F. A. Tourinho, J. C. Bacri, E. Dubois, R. Perzynski, Y. L. Raikher, "NiFe2O4 nanoparticles in ferrofluids: evidence of spin disorder in the surface layer", Journal of Magnetism and Magnetic Materials 242, 572 (2002)

Y. L. Raikher, V. I. Stepanov, J. Depeyrot, M. H. Sousa, F. A. Tourinho, E. Hasmonay, R. Perzynski, "Dynamic optical probing of the magnetic anisotropy of nickel-ferrite nanoparticles", Journal of Applied Physics 96, 5226 (2004)

E. C. Sousa, M. H. Sousa, G. F. Goya, H. R. Rechenberg, M. C. F. L. Lara, F. A. Tourinho, J. Depeyrot, "Enhanced surface anisotropy evidenced by Mössbauer spectroscopy in nickel ferrite", Journal of Magnetism and Magnetic Materials 272, 1215 (2004)

R. Aquino, J. A. Gomes, F. A. Tourinho, E. Dubois, R. Perzynski, G. J. da Silva, J. Depeyrot, "Sm and Y radiolabeled magnetic fluids: magnetic and magneto-optical characterization", Journal of Magnetism and Magnetic Materials 289, 431 (2005)

J. A. Gomes, M. H. Sousa, F. A. Tourinho, J. Mestnik, R. Itri, J. Depeyrot, "Rietveld structure refinement of the cation distribution in ferrite fine particles studied by X-ray powder diffraction", Journal of Magnetism and Magnetic Materials 289, 184 (2005)

A. F. C. Campos, F. A. Tourinho, G. J. da Silva, J. Depeyrot, "Calculation of the pair potential interaction in electric double-layered magnetic fluids: a quantitative analysis of the pH-dependent phase diagram", Journal of Magnetism and Magnetic Materials 289, 171 (2005)

E. C. Sousa, C. R. Alves, R. Aquino, M. H. Sousa, G. F. Goya, H. R. Rechenberg, F. A. Tourinho, J. Depeyrot, "Experimental evidence of surface effects in the magnetic dynamics behavior of ferrite nanoparticles", Journal of Magnetism and Magnetic Materials 289, 118 (2005)

R. Aquino, J. Depeyrot, M. H. Sousa, F. A. Tourinho, E. Dubois, R. Perzynski, "Magnetization temperature dependence and freezing of surface spins in magnetic fluids based on ferrite nanoparticles", Physical Review B 72, 184435 (2005)

C. R. Alves, R. Aquino, J. Depeyrot, T. A. P. Cotta, M. H. Sousa, F. A. Tourinho, H. R. Rechenberg, G. F. Goya, "Surface spin freezing of ferrite nanoparticles evidenced by magnetization measurements", Journal of Applied Physics 99, 08M905 (2006)

D. Soga, S. Alves, A. Campos, F. A. Tourinho, J. Depeyrot, A. M. Figueiredo, "Nonlinear optical properties of ionic magnetic colloids in the femto- and millisecond time scales: change from convergent-to-divergent lens-type behaviors", Journal of the Optical Society of America B 24, 49 (2007)

F. L. O. Paula, R. Aquino, G. J. da Silva, J. Depeyrot, F. A. Tourinho, J. O. Fossum, K. D. Knudsen, "Small-angle X-ray and small-angle neutron scattering investigations of colloidal dispersions of magnetic nanoparticles and clay nanoplatelets", Journal of Applied Crystallography 40, S269 (2007)

A. F. C. Campos, F. A. Tourinho, R. Aquino, J. Depeyrot, "Probing interface and finite size effects in magnetic ferrite nanoparticles by electrochemical measurements", Journal of Magnetism and Magnetic Materials 310, 2847 (2007)

E. C. Sousa, M. H. Sousa, H. R. Rechenberg, G. F. Goya, F. A. Tourinho, R. Perzynski, J. Depeyrot, "In-field Mossbauer study of the disordered surface contribution in nickel ferrite nanomagnets", Journal of Magnetism and Magnetic Materials 310, E1020 (2007)

J. D. Gomes, M. H. Sousa, F. A. Tourinho, R. Aquino, G. J. da Silva, J. Depeyrot, E. Dubois, R. Perzynski, "Synthesis of core-shell ferrite nanoparticles for ferrofluids: chemical and magnetic analysis", Journal of Physical Chemistry C 112, 6220 (2008)

H. R. Rechenberg, E. C. Sousa, J. Depeyrot, M. H. Sousa, R. Aquino, F. A. Tourinho, R. Perzynski, "Surface spin disorder in nickel ferrite nanomagnets studied by in-field Mossbauer spectroscopy", Hyperfine Interactions 184, 9 (2008)

F. L. O. Paula, G. J. da Silva, R. Aquino, J. Depeyrot, J. O. Fossum, K. D. Knudsen, G. Helgesen, F. A. Tourinho, "Gravitational and magnetic separation in self-assembled clay-ferrofluid nanocomposites", Brazilian Journal of Physics 39, 163 (2009)

A. F. C. Campos, E. P. Marinho, M. D. Ferreira, F. A. Tourinho, F. L. D. Paula, J. Depeyrot, "X-DLVO interactions between nanocolloidal magnetic particles: the quantitative interpretation of the pH-dependent phase diagram of EDL-MF", Brazilian Journal of Physics 39, 230 (2009)

E. C. Sousa, H. R. Rechenberg, J. Depeyrot, J. A. Gomes, R. Aquino, F. A. Tourinho, V. Dupuis, R. Perzynski, "In-field Mossbauer study of disordered surface spins in core/shell ferrite nanoparticles", Journal of Applied Physics 106, 093901 (2009)

J. A. Gomes, G. M. Azevedo, J. Depeyrot, J. Mestnik, G. J. da Silva, F. A. Tourinho, R. Perzynski, "ZnFe2O4 nanoparticles for ferrofluids: a combined XANES and XRD study", Journal of Magnetism and Magnetic Materials 323, 1203 (2011)

G. Meriguet, E. Wandersman, E. Dubois, A. Cebers, J. D. Gomes, G. Demouchy, J. Depeyrot, A. Robert, R. Perzynski, "Magnetic fluids with tunable interparticle interaction: monitoring the under-field local structure", Magnetohydrodynamics 48, 415 (2012)

J. A. Gomes, G. M. Azevedo, J. Depeyrot, J. Mestnik, F. L. O. Paula, F. A. Tourinho, R. Perzynski, "Structural, chemical, and magnetic investigations of core-shell zinc ferrite nanoparticles", Journal of Physical Chemistry C 116, 24281 (2012)

A. F. C. Campos, R. Aquino, F. A. Tourinho, F. L. O. Paula, J. Depeyrot, "Influence of the spatial confinement at nanoscale on the structural surface charging in magnetic nanocolloids", European Physical Journal E 36, 42 (2013)

F. G. Silva, R. Aquino, F. A. Tourinho, V. I. Stepanov, Y. L. Raikher, R. Perzynski, J. Depeyrot, "The role of magnetic interactions in exchange bias properties of MnFe2O4@gamma-Fe2O3 core/shell nanoparticles", Journal of Physics D 46, 285003 (2013)

A. L. Sehnem, R. Aquino, A. F. C. Campos, F. A. Tourinho, J. Depeyrot, A. M. Figueiredo Neto, "Thermodiffusion in positively charged magnetic colloids: influence of the particle diameter", Physical Review E 89, 032308 (2014)

R. Cabreira-Gomes, F. G. Silva, R. Aquino, P. Bonville, F. A. Tourinho, R. Perzynski, J. Depeyrot, "Exchange bias of MnFe2O4@gamma Fe2O3 and CoFe2O4@gamma Fe2O3 core/shell nanoparticles", Journal of Magnetism and Magnetic Materials 368, 409 (2014)

E. S. Gonçalves, D. R. Cornejo, C. L. P. Oliveira, A. M. Figueiredo Neto, J. Depeyrot, F. A. Tourinho, R. Aquino, "Magnetic and structural study of electric double-layered ferrofluid with MnFe2O4@gamma-Fe2O3 nanoparticles of different mean diameters: determination of the magnetic correlation distance", Physical Review E 91, 042317 (2015)

B. T. Huang, M. Roger, M. Bonetti, T. J. Salez, C. Wiertel-Gasquet, E. Dubois, R. C. Gomes, G. Demouchy, G. Meriguet, V. Peyre, M. Kouyate, C. L. Filomeno, J. Depeyrot, F. A. Tourinho, R. Perzynski, S. Nakamae, "Thermoelectricity and thermodiffusion in charged colloids", Journal of Chemical Physics 143, 054902 (2015)

A. Sehnem, A. M. F. Neto, R. Aquino, A. F. C. Campos, F. A. Tourinho, J. Depeyrot, "Temperature dependence of the Soret coefficient of ionic colloids", Physical Review E 92, 042311 (2015)

P. Coppola, F. G. da Silva, G. Gomide, F. L. O. Paula, A. F. C. Campos, R. Perzynski, C. Kern, J. Depeyrot, R. Aquino, "Hydrothermal synthesis of mixed zinc-cobalt ferrite nanoparticles: structural and magnetic properties", Journal of Nanoparticle Research 18, 138 (2016)

F. H. Martins, F. G. Silva, F. L. O. Paula, J. D. Gomes, R. Aquino, J. Mestnik, P. Bonville, F. Porcher, R. Perzynski, J. Depeyrot, "Local structure of core-shell MnFe2O4+delta-based nanocrystals: cation distribution and valence states of manganese ions", Journal of Physical Chemistry 121, 8982 (2017)