Zobrazeno 1 - 10
of 49
pro vyhledávání: '"A.L. Tronconi"'
Autor:
J. M. Baker, M. I. Cook, Clyde A. Hutchison, R. T. Weber, Philip Meadows Martineau, A.L. Tronconi
Electron paramagnetic resonance (EPR) measurements have been made on Dy 3+ and Er 3+ in lanthanum nicotinate dihydrate (LaND) single crystals, for comparison with the information described in the previous paper about single crystals of DyND and ErND.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f69982ca41ded4f5da442c7dda880794
https://doi.org/10.1098/rspa.1991.0123
https://doi.org/10.1098/rspa.1991.0123
Autor:
Aderbal C. Oliveira, Regiane Lopes dos Santos, Emília Celma de Oliveira Lima, Paulo C. Morais, A.L. Tronconi
Publikováno v:
Journal de Physique IV (Proceedings). 125:505-508
In this study the photoacoustic signal of cobalt-ferrite based particles has been investigated near the semiconductor band-edge and in the very small-size limit. In these limits we find that the photoacoustic signal scales with both the zero- and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a986c8b8dd8f0f7ec38b9093379b0ae0
https://doi.org/10.1051/jp4:2005125117
https://doi.org/10.1051/jp4:2005125117
Autor:
N. Buske, B.M. Lacava, Ricardo Bentes Azevedo, Paulo C. Morais, Zulmira G. M. Lacava, A.L. Tronconi, L.M. Lacava
Publikováno v:
Journal of Magnetism and Magnetic Materials. 225:79-83
Atomic force microscopy (AFM), transmission electron microscopy (TEM), and ferromagnetic resonance (FMR) were used to unfold the nanoparticle size of a ferrofluid sample. Compared to TEM, the AFM method showed a nanoparticle diameter (Dm) reduction o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0df6d0aafb016613d7c60848a2b05248
https://doi.org/10.1016/s0304-8853(00)01231-2
https://doi.org/10.1016/s0304-8853(00)01231-2
Publikováno v:
Solid State Communications. 101:693-697
Magnetic resonance is used to estimate the Brownian relaxation time and hydrodynamic radius of MnFe 2 O 4 ferrite nanoparticles in suspension in a magnetic fluid. By measuring the resonance linewidth broadening as a function of the particle-particle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1d06d1a97be40ce3c66bd2a3301a350
https://doi.org/10.1016/s0038-1098(96)00671-0
https://doi.org/10.1016/s0038-1098(96)00671-0
Autor:
A. R. Pereira, F.A. Tourinho, Fernando Pelegrini, M. C. F. L. Lara, A.L. Tronconi, Paulo C. Morais
Publikováno v:
Journal of Applied Physics. 79:7931-7935
Magnetic resonance is used to study magnetic dipole particle–particle interaction in ionic water‐based iron‐manganese magnetic fluids. A set of six samples having particle concentration running from 1.2×1016 to 6.3×1016 particles/cm3 were fro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e55ad9f45951a30e4f374daded19d698
https://doi.org/10.1063/1.362407
https://doi.org/10.1063/1.362407
Publikováno v:
Journal of Magnetism and Magnetic Materials. 252:56-58
In this study photoacoustic spectroscopy is introduced as a promising experimental technique to investigate magnetic fluids (MFs). The spectral features of representative uncoated- and coated MFs in the 0.3–1.0 μm wavelength region have been discu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2681fc08c4393ed4296863526d483afb
https://doi.org/10.1016/s0304-8853(02)00685-6
https://doi.org/10.1016/s0304-8853(02)00685-6
Autor:
P.C. Morais, L.B. Silveira, J.G. Santos, A.C. Oliveira, A.L. Tronconi, R.L. Santos, E.C.D. Lima, J.M. Marchetti, A.C. Tedesco
Publikováno v:
INTERMAG Asia 2005. Digests of the IEEE International Magnetics Conference, 2005..
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14c7a1b7e4fb1337d50e7366d021a442
https://doi.org/10.1109/intmag.2005.1463772
https://doi.org/10.1109/intmag.2005.1463772
Publikováno v:
Journal of Magnetism and Magnetic Materials. 122:90-92
We report for the first time electron paramagnetic resonance linewidth measurements in an ionic water-based ferrofluid. The linewidth broadening is studied as a function of the particle-particle distance. We change the average particle-particle dista
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adb5c06f5c39bd906ca9ff7404e52597
https://doi.org/10.1016/0304-8853(93)91046-a
https://doi.org/10.1016/0304-8853(93)91046-a
Publikováno v:
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES. 453(1957)
Electron paramagnetic resonance spectra of nearest neighbour pairs have been measured for the light lanthanide ions Ce3 and Nd3 in lanthanide nicotinate dihydrates, for comparison with the properties of the heavy lanthanide (HLn) ions Tm3, Dy3, Tb3 a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ab5b6069c03c10977920f750f6f3417
http://ora.ox.ac.uk/objects/uuid:ce9cf403-0b71-48e1-be5e-42d3d005133a
http://ora.ox.ac.uk/objects/uuid:ce9cf403-0b71-48e1-be5e-42d3d005133a
Publikováno v:
Journal of Magnetism and Magnetic Materials. :2381-2382
The effects of high microwave power level upon the ferromagnetic resonance line of ferrofluids at room temperature are investigated. The distortions of the resonance line with increasing power levels give evidence of an apparent foldover effect attri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::945ef88ce3a7c02a9f2e76d362dad9b0
https://doi.org/10.1016/j.jmmm.2003.12.973
https://doi.org/10.1016/j.jmmm.2003.12.973