Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Franco Lucari"'
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 26:1005-1009
The influence of inhomogeneity on magnetic materials is considered; in particular, we examine how it affects the magneto-optical (MO) response of films and multilayers. From ab initio calculations of the band structure, the optical conductivity tenso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::320f77b8b9a0d4a17138baf2e84d3fe2
https://doi.org/10.1007/s10948-012-1858-9
https://doi.org/10.1007/s10948-012-1858-9
Autor:
Franco Lucari, Roberto Vittorio Murri, Nicola Pinto, Roberto Gunnella, Franco D'Orazio, Maurizio Passacantando, L. Morresi, Luca Ottaviano
Publikováno v:
Surface Science. 577:22-30
The structural and magnetic properties of an Mn rich solid phase epitaxy MnxGe1� x alloy grown on a clean 2 · 8Ge(1 1 1) surface, with a Curie temperature of about 300 K are investigated. Magneto-optical Kerr effect infers the existence of in-plan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e60cf667cad04eb5abe2abedaf5dc361
https://doi.org/10.1016/j.susc.2004.12.021
https://doi.org/10.1016/j.susc.2004.12.021
Autor:
Maurizio Passacantando, Roberto Vittorio Murri, Franco D'Orazio, Nicola Pinto, Franco Lucari, P. Picozzi, L. Morresi
Publikováno v:
physica status solidi (c). 1:1748-1751
The growth mechanism of thin Ge1−xMnx/Ge(100) diluted magnetic semiconductor films have been studied by reflection high energy electron diffraction (RHEED) technique and correlated to the structural and magnetic properties of the films provided by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66bd4dc7fcdd8bad15b347b1df1463e9
https://doi.org/10.1002/pssc.200304409
https://doi.org/10.1002/pssc.200304409
Autor:
Marc Nogues, Corinne Chanéac, Elisabeth Tronc, Dominique Mailly, Franco Lucari, A.M. Testa, Natividad Gálvez, Wolfgang Wernsdorfer, Franco D'Orazio, Jean-Pierre Jolivet, Dino Fiorani, Jean-Marc Greneche
Publikováno v:
Journal of Magnetism and Magnetic Materials. 262:6-14
From AC susceptibility, magnetization and Mossbauer spectroscopy measurements, we show the dominant role of the surface properties and surface-to-core exchange coupling on the static and dynamic properties of γ-Fe 2 O 3 particles (2.7, 4.6 and 8.7 n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb3f07f3fea3ef4d9824281662e3552f
https://doi.org/10.1016/s0304-8853(03)00011-8
https://doi.org/10.1016/s0304-8853(03)00011-8
Autor:
Dino Fiorani, Giovanni Mattei, M Melchiorri, Claudio Sangregorio, Franco D'Orazio, C. de Julián Fernández, Franco Lucari, Paolo Mazzoldi, Dante Gatteschi
Publikováno v:
Journal of Magnetism and Magnetic Materials. 262:111-115
Three samples of Co–Ni alloy nanoparticles with different compositions were prepared by sequential ion implantation in silica slides. Transmission electron microscopy (TEM) showed the presence of spherical nanoparticles dispersed in the matrix. Mag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23b41d2039edf313ced97bb0eb2d6713
https://doi.org/10.1016/s0304-8853(03)00030-1
https://doi.org/10.1016/s0304-8853(03)00030-1
Autor:
L. Morresi, Maurizio Passacantando, Adriano Verna, Franco D'Orazio, Roberto Vittorio Murri, P. Picozzi, Sandro Santucci, Nicola Pinto, Franco Lucari, Roberto Gunnella
Publikováno v:
Journal of Magnetism and Magnetic Materials. 262:158-161
The magneto-optical Kerr effect is used to study epitaxial Mn x Ge 1− x /Ge (1 0 0) films grown at different substrate temperatures and Mn concentrations. The samples are magnetic at low temperature (5 K) and lose this property as the measuring tem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ac4d65752e8f7bee56f13af5d411a5e
https://doi.org/10.1016/s0304-8853(03)00041-6
https://doi.org/10.1016/s0304-8853(03)00041-6
Autor:
Maria Gloria Pini, Gianluca Gubbiotti, Franco Lucari, Franco D'Orazio, Giovanni Carlotti, M. De Crescenzi
Publikováno v:
Scopus-Elsevier
Surface magneto-optical Kerr effect (SMOKE) magnetometry in the temperature range 10–300 K was exploited to investigate the magnetic properties of high-quality Cu/Ni/Cu/Si(1 1 1) epitaxial heterostructures with thickness of the Ni layer, d Ni , bet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c905fdb3b882b9aa76c006066fbcc701
https://doi.org/10.1016/s0921-4526(99)00701-2
https://doi.org/10.1016/s0921-4526(99)00701-2
Autor:
Dino Fiorani, Marc Nogues, Leonard Spinu, J.L. Dormann, Franco Lucari, Franco D'Orazio, R. Cherkaoui, Jean-Pierre Jolivet, E. Tronc, Hamid Kachkachi
Publikováno v:
Journal of Magnetism and Magnetic Materials. 203:23-27
AC susceptibility (5–10 4 Hz) and Mossbauer spectroscopy studies of γ-Fe 2 O 3 4.7 nm particle assemblies with interparticle interactions of varying strength reveal three magnetic regimes: pure superparamagnetic, superparamagnetic modified by inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c967e31e50df7394f04f32034e45449
https://doi.org/10.1016/s0304-8853(99)00180-8
https://doi.org/10.1016/s0304-8853(99)00180-8
Autor:
Marc Nogues, J.L. Dormann, A. Garcia, R. Cherkaoui, A.M. Testa, Dino Fiorani, E. Tronc, Leonard Spinu, Franco Lucari, Franco D'Orazio
Publikováno v:
Journal of Magnetism and Magnetic Materials. :143-147
Studies of static and dynamic properties of γ-Fe2O3 nanoparticles (4.7 nm) with interparticle interactions of increasing strength reveal a progressive change of regime from pure superparamagnetic, for very weak interactions, to collective for strong
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::856a24bc2ef20031078c6ba62edc02d0
https://doi.org/10.1016/s0304-8853(98)00694-5
https://doi.org/10.1016/s0304-8853(98)00694-5
Autor:
Leonard Spinu, J.L. Dormann, Franco Lucari, Franco D'Orazio, A. Garcia, Marc Nogues, R. Cherkaoui, Jean-Pierre Jolivet, Dino Fiorani, E. Tronc
Publikováno v:
Nanostructured Materials. 12:757-762
Studies of static and dynamic properties of γ-Fe2O3 particle (5 nm) assemblies reveal the existence of three magnetic regimes with increasing strength of the interparticle interactions: pure superparamagnetic for very weak interactions, modified sup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79a14375d35bbbe45a1aa08048ce1fcd
https://doi.org/10.1016/s0965-9773(99)00231-7
https://doi.org/10.1016/s0965-9773(99)00231-7