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dc.contributor.author
García Flores, A. F.
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Matias, J.S.
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Garcia, D. J.
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Martínez, E. D.
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Cornaglia de la Cruz, Pablo Sebastian
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Lesseux, G.G.
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Ribeiro, R. A.
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Urbano, R. R.
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Rettori, C.
dc.date.available
2018-01-30T16:06:27Z
dc.date.issued
2017-10-17
dc.identifier.citation
García Flores, A. F.; Matias, J.S.; Garcia, D. J.; Martínez, E. D.; Cornaglia de la Cruz, Pablo Sebastian; et al.; Crystal-field effects in Er 3 + - and Yb 3 + -doped hexagonal NaYF 4 nanoparticles; American Physical Society; Physical Review B; 96; 16; 17-10-2017; 165430
dc.identifier.issn
2469-9950
dc.identifier.uri
http://hdl.handle.net/11336/35005
dc.description.abstract
Since the up-conversion phenomenon in rare-earths (REs) doped NaYF4 is strongly affected by the crystal electric field (CF), determining the CF parameters, wave functions, and scheme of the energy levels of the RE J multiplets could be crucial to improve and tune the up-conversion efficiency. In this work, the temperature and magnetic field dependent magnetization of NaY1−x[Er(Yb)]xF4 hexagonal nanoparticles (NPs) is reported. The data were best fit using the appropriated CF Hamiltonian for the J=15/2(J=7/2) ground state multiplet of Er3+(Yb3+) ions. The B02, B04, B06, and B66 CF parameters were considered in the Hamiltonian for RE ions located at the hexagonal C3h point symmetry site of the NaYF4 host lattice. These results allowed us to predict an overall CF splitting of ∼214 (∼356 ) for Er3+(Yb3+) and the wave functions and their energy levels for the J=15/2 (J=7/2) ground state multiplet which are in good agreement with the low temperature electron spin resonance experiments. Besides, our measurements allowed us to calculate all the excited CF J multiplets that yield to a good estimation of the up-conversion light emission linewidth. The nonlinear optical light emission of the studied NaY1−x[Er(Yb)]xF4 hexagonal NPs was also compared with the most efficient up-conversion codoped NaY1−x−yErxY by F4 hexagonal NPs.
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application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Nayf
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Upconversion
dc.subject
Rare Earth
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Crystal-field effects in Er 3 + - and Yb 3 + -doped hexagonal NaYF 4 nanoparticles
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-12-15T14:33:25Z
dc.journal.volume
96
dc.journal.number
16
dc.journal.pagination
165430
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: García Flores, A. F.. Universidade Federal do ABC; Brasil
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Fil: Matias, J.S.. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
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Fil: Garcia, D. J.. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
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Fil: Martínez, E. D.. Instituto de Física “Gleb Wataghin”, Unicamp; Brasil
dc.description.fil
Fil: Cornaglia de la Cruz, Pablo Sebastian. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
dc.description.fil
Fil: Lesseux, G.G.. Instituto de Física “Gleb Wataghin”, Unicamp; Brasil
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Fil: Ribeiro, R. A.. Universidade Federal do ABC; Brasil
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Fil: Urbano, R. R.. Instituto de Física “Gleb Wataghin”, Unicamp; Brasil
dc.description.fil
Fil: Rettori, C.. Instituto de Física “Gleb Wataghin”, Unicamp; Brasil. Universidade Federal do ABC; Brasil
dc.journal.title
Physical Review B
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevB.96.165430
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevB.96.165430
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