Zobrazeno 1 - 10
of 75
pro vyhledávání: '"E. W. Barrera"'
Publikováno v:
Journal of Molecular Structure. 1067:205-209
The synthesis, crystal structure, morphology, magnetic properties and electronic calculations of two members of the family of double perovskite materials RE2MgTiO6 (RE = Dy, Gd) are described. X-ray powder diffraction measurements show that these mat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79b7370fad8d2fff0ae030c438635bb2
https://doi.org/10.1016/j.molstruc.2014.03.041
https://doi.org/10.1016/j.molstruc.2014.03.041
Autor:
Sarmiento, M. P. Rojas1, Bello, E. W. Barrera1, V., C. A. Parra1,2, B., D. Martinez1,2, Téllez, D. A. Landínez1, Roa-Rojas, J.1
Publikováno v:
Revista Colombiana de Física. 2009, Vol. 41 Issue 3, p584-586. 3p. 2 Graphs.
Publikováno v:
Revista Colombiana de Física. 2009, Vol. 41 Issue 3, p548-550. 3p. 2 Graphs.
Publikováno v:
Revista Colombiana de Física. 2009, Vol. 41 Issue 3, p569-571. 3p. 1 Chart, 3 Graphs.
Publikováno v:
Revista Colombiana de Física. 2009, Vol. 41 Issue 3, p557-559. 3p. 1 Chart, 1 Graph.
Autor:
E. W. Barrera, Soo Bong Choi, Francesc Díaz, Maria Cinta Pujol, Concepción Cascales, Fabian Rotermund
Publikováno v:
Optical Materials. 34:399-403
Tm 3+ -doped and Yb 3+ , Er 3+ /Tm 3+ -codoped Lu 2 O 3 rods of ∼90 nm of diameter have been prepared through a soft hydrothermal procedure. A body/surface model has been proposed to describe the dynamics exhibited by fluorescence decays of 3 H 4 a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b6c895dd9d1bf0003432a370eea193e
https://doi.org/10.1016/j.optmat.2011.06.001
https://doi.org/10.1016/j.optmat.2011.06.001
Autor:
Xavier Mateos, E. W. Barrera, K. H. Park, Carlos Zaldo, Joan J. Carvajal, Francesc Díaz, Magdalena Aguiló, Maria Cinta Pujol, Fabian Rotermund, Soo Bong Choi, Concepción Cascales
Publikováno v:
Applied Physics B. 106:409-417
Thulium-doped Lu2O3 nanocrystals with $\mathit{Ia}\overline{3}$ cubic phase and mean grain size of 17 nm were synthesized by using a modified Pechini method. Their spectroscopic properties have been characterized by Raman, optical absorption, photolu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d78b55a2d4407b15b2d01a11536f504
https://doi.org/10.1007/s00340-011-4691-0
https://doi.org/10.1007/s00340-011-4691-0
Publikováno v:
physica status solidi c. 4:4306-4310
The synthesis of the Y0.5Sm0.5Ba2Cu3O7–δ superconducting material by the standard solid state reaction is reported. DC resistivity measurements reveal the improvement of the critical temperature (Tc) when substitution of exact 50-50 mix of Yttrium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96729f370cc7b8f4559f69c0ddb62e87
https://doi.org/10.1002/pssc.200675923
https://doi.org/10.1002/pssc.200675923
Autor:
Francesc Díaz, Marco Bettinelli, Rosa Maria Solé, Xavier Mateos, Jaume Massons, Magdalena Aguiló, E. W. Barrera, Adolfo Speghini, Joan J. Carvajal, Maria Cinta Pujol, Concepción Cascales
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
Monoclinic Yb-sensitized (Tm, Ho)-doped KLu(WO4)2 nanocrystals of ∼100 nm size have been synthesized by the modified Pechini sol-gel method. Their diode laser near-infrared (∼980 nm) excited upconversion emission properties have been characterize
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9abb574da80fb3eef8cfb1cfcf5b84b4
https://pubmed.ncbi.nlm.nih.gov/24322200
https://pubmed.ncbi.nlm.nih.gov/24322200
Autor:
Magdalena Aguiló, Jaume Massons, Joan J. Carvajal, Xavier Mateos, Francesc Díaz, Ol. A. Savchuk, Maria Cinta Pujol, Rosa Maria Solé, E. W. Barrera
Publikováno v:
SPIE Proceedings.
We studied up-conversion emission of triply doped (Ho,Tm,Yb):KLu(WO4)2 (KLuW) nanocrystals at the range of temperature 296-673 K at different excitation wavelengths. The intensity ratio between two emission lines was used for monitoring the temperatu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dae1792bb0d19e11fccb2dd99a1e5925
https://doi.org/10.1117/12.2003915
https://doi.org/10.1117/12.2003915