Zobrazeno 1 - 10
of 34
pro vyhledávání: '"R. Fermento"'
Autor:
Gaspar Armelles, M. Díaz, Alfonso Cebollada, Yves Huttel, Lidia Martínez, J. B. González-Díaz, E. Román, R. Fermento, Carmen Ballesteros
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
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The optical and magneto-optical properties of hybrid Co-SiOx systems are studied as a function of Co concentration. The structures were prepared by alternate depositions of SiOx thin films and layers of 10-nm-diameter Co nanoparticles produced by an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::612cd5d67db42610ec7044fd6b193f82
https://doi.org/10.1007/s11051-010-0158-1
https://doi.org/10.1007/s11051-010-0158-1
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
In-situ electrical resistance measurements were performed to obtain the scattering characteristics of very thin polycrystalline metal transition magnetic alloys grown by ion beam deposition (IBD) on specific underlayers. The experimental curves show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d5baabc30e9418ea117c99570074f9a
https://doi.org/10.1016/j.jmmm.2009.03.014
https://doi.org/10.1016/j.jmmm.2009.03.014
Autor:
Susana Cardoso, R. Fermento, Juliana Oliveira, Arun Raghunathan, J. B. Sousa, Paulo P. Freitas, John Evan Snyder, I. G. Trindade
Publikováno v:
IEEE Transactions on Magnetics. 45:168-171
In this paper, we describe the development of multilayer (ML) thin films suitable for flux concentrators (FC). We prepared ML films having magnetic thicknesses n middot tF in the range of 400 Aringto 3000 Aringby ion beam deposition (IBD). The films
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6640173191ea637e2cec21f561af56dc
https://doi.org/10.1109/tmag.2008.2005473
https://doi.org/10.1109/tmag.2008.2005473
Autor:
B. Negulescu, João Ventura, J. M. Teixeira, J. B. Sousa, R. Fermento, Paulo P. Freitas, João P. Araújo
Publikováno v:
Journal of Magnetism and Magnetic Materials. 316:e973-e976
We studied ion beam deposited NiFe/CoFe/Cu/CoFe/NiMn spin valves (SVs) subjected to different thermal annealing to establish the exchange field ( H E ) of the CoFe pinned layer. The magnetoresistive (MR) properties of the SVs were characterized by ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e34a7a0844c4a1e7ddab24e4b7a25f77
https://doi.org/10.1016/j.jmmm.2007.03.159
https://doi.org/10.1016/j.jmmm.2007.03.159
Autor:
J. M. Teixeira, Alberto M. Pereira, F. Carpinteiro, R. Fermento, João Bessa Sousa, João P. Araújo, Diana C. Leitao, João Ventura
Publikováno v:
Journal of Non-Crystalline Solids. 354:5279-5281
Magnetic nanostructures display new and interesting physical phenomena and are currently used in a large variety of applications. We studied the structural, magnetic and transport properties of Co thin films deposited by ion beam sputtering. We probe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5dd9a67f9d3a9ac0dac0e2210883eb10
https://doi.org/10.1016/j.jnoncrysol.2008.05.077
https://doi.org/10.1016/j.jnoncrysol.2008.05.077
Autor:
J. M. Teixeira, Susana Cardoso, I. G. Trindade, J. B. Sousa, R. Fermento, R. C. Chaves, Paulo P. Freitas
Publikováno v:
IEEE Transactions on Magnetics. 44:2472-2474
Giant magnetoresistive (GMR) sensors can have their field sensitivity enhanced by many fold if located in the gap of two magnetically soft flux-guides (FG). In this paper, we present spin valve (SV) sensors, with saturation fields of less than 3 Oe a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::161fb0c9d5d38f53fd4d8f06b0f4a67a
https://doi.org/10.1109/tmag.2008.2002602
https://doi.org/10.1109/tmag.2008.2002602
Autor:
João Bessa Sousa, S.C. Freitas, R. Fermento, J. M. Teixeira, João Ventura, P.J. Freitas, João P. Araújo
Publikováno v:
IEEE Transactions on Magnetics. 43:3143-3145
We present a study of the dependence of Cu spacer interlayer coupling field (Hcoupl) on the thickness t of the Cu and the deposition rate of the layers in spin valves (SVs). We considered two series of SVs made of NiFe/CoFe/Cu/CoFe/Mnlr with Cu t ran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6da465fcdf39a6979945497ab86f9de
https://doi.org/10.1109/tmag.2007.897352
https://doi.org/10.1109/tmag.2007.897352
Autor:
Lidia Martínez, M. Díaz, Carmen Ballesteros, E. Román, M. Ruano, R. Fermento, Yves Huttel, Ana Espinosa, Elena Navarro, Mar García-Hernández
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
The study of the magnetic properties of Co nanoparticles (with an average diameter of 10.3 nm) grown using a gas-phase aggregation source and embedded in Au and V matrices is presented. We investigate how the matrix, the number of embedded nanopartic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54bbd1c6f3ce2412e7af02ce4e81b18d
https://pubmed.ncbi.nlm.nih.gov/23165521
https://pubmed.ncbi.nlm.nih.gov/23165521
Autor:
Susana Cardoso, J. M. Teixeira, F. Carpinteiro, J. B. Sousa, João Ventura, R. Fermento, R. Lusche, Paulo P. Freitas, João P. Araújo
Publikováno v:
The Review of scientific instruments. 82(4)
Magneto-optical Kerr effect (MOKE) magnetometry is an indispensable, reliable, and one of the most widely used techniques for the characterization of nanostructured magnetic materials. Information, such as the magnitude of coercive fields or anisotro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2578056f2ac4e27c4d631ae26a540669
https://pubmed.ncbi.nlm.nih.gov/21529020
https://pubmed.ncbi.nlm.nih.gov/21529020
Autor:
M. Díaz, L. Martínez, M. M. Ruano, D. Llamosa P, E. Román, M. García-Hernandez, C. Ballesteros, R. Fermento, A. Cebollada, G. Armelles, Y. Huttel
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
We present a morphological, structural, and magnetic characterization of Co nanoparticles (mean diameter of 10.3 ± 1.8 nm) grown using a gas aggregation source and embedded in a silicon oxide matrix by sequential deposition of nanoparticles and sili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cb4253b2add4da3037bc28592d36195
http://hdl.handle.net/10261/134292
http://hdl.handle.net/10261/134292
