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DC Field | Value | Language |
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dc.contributor.author | Varanda, L. C. | - |
dc.contributor.author | Jafelicci, M. | - |
dc.contributor.author | Imaizumi, M. | - |
dc.date.accessioned | 2014-05-20T14:17:55Z | - |
dc.date.accessioned | 2016-10-25T17:40:13Z | - |
dc.date.available | 2014-05-20T14:17:55Z | - |
dc.date.available | 2016-10-25T17:40:13Z | - |
dc.date.issued | 2007-06-15 | - |
dc.identifier | http://dx.doi.org/10.1063/1.2747209 | - |
dc.identifier.citation | Journal of Applied Physics. Melville: Amer Inst Physics, v. 101, n. 12, 5 p., 2007. | - |
dc.identifier.issn | 0021-8979 | - |
dc.identifier.uri | http://hdl.handle.net/11449/25371 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/25371 | - |
dc.description.abstract | Temperature dependence and uniaxial magnetocrystalline anisotropy properties of the chemically synthesized 4 nm L1(0)-Fe55Pt45 nanoparticle assembly by a modified polyol route are reported. As-prepared nanoparticles are superparamagnetic presenting fcc structure, and annealing at 550 degrees C converts the assembly into ferromagnetic nanocrystals with large coercivity (H-C>1 T) in an L1(0) phase. Magnetic measurements showed an increasing in the ferromagnetically ordered fraction of the nanoparticles with the annealing temperature increases, and the remanence ratio, S=M-R/M-S congruent to 0.76, suggests an (111) textured film. A monotonic increase of the blocking temperature T-B, the uniaxial magnetocrystalline anisotropy constant K-U, and the coercivity H-C with increasing annealing temperature was observed. Magnetic parameters indicate an enhancement in the magnetic properties due to the improved Fe55Pt45 phase stabilizing, and the room-temperature stability parameter of 67, which indicates that the magnetization should be stable for more than ten years, makes this material suitable for ultrahigh-density magnetic recording application.(c) 2007 American Institute of Physics. | en |
dc.format.extent | 5 | - |
dc.language.iso | eng | - |
dc.publisher | American Institute of Physics (AIP) | - |
dc.source | Web of Science | - |
dc.title | Temperature dependence and magnetocrystalline anisotropy studies of self-assembled L1(0)-Fe55Pt45 ferromagnetic nanocrystals | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.description.affiliation | UNESP, Inst Chem, Dept Phys Chem, Lab Magnet Mat & Colloids, BR-14801 Araraquara, SP, Brazil | - |
dc.description.affiliation | UNESP, Fac Sci, Dept Phys, BR-17033 Bauru, Brazil | - |
dc.description.affiliationUnesp | UNESP, Inst Chem, Dept Phys Chem, Lab Magnet Mat & Colloids, BR-14801 Araraquara, SP, Brazil | - |
dc.description.affiliationUnesp | UNESP, Fac Sci, Dept Phys, BR-17033 Bauru, Brazil | - |
dc.identifier.doi | 10.1063/1.2747209 | - |
dc.identifier.wos | WOS:000247625700096 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.identifier.file | WOS000247625700096.pdf | - |
dc.relation.ispartof | Journal of Applied Physics | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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