Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Stewart, Silvana Jacqueline"'
Autor:
Salcedo Rodríguez, Karen Lizeth, Stewart, Silvana Jacqueline, Mendoza Zélis, Pedro, Pasquevich, Gustavo Alberto, Rodríguez Torres, Claudia Elena
Defective zinc ferrites ZnFe2O4-δ obtained by vacuum annealing bulk Zn-ferrite at different temperatures TAnn were investigated by using XANES at Zn-K, Fe-K and XMCD at Fe-L2,3 edges, static and dynamic magnetic measurements. The cation inversion th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1329::006ef4f506a5b479c0da046563618ffe
https://ri.conicet.gov.ar/11336/87528
https://ri.conicet.gov.ar/11336/87528
Autor:
Perez de Berti, Ignacio Omar, Cagnoli, Maria Virginia, Pecchi Sanchez, Gina Angela, Alessandrini, Jose Luis, Stewart, Silvana Jacqueline, Bengoa, Jose Fernando, Marchetti, Sergio Gustavo
A new approach to thermal decomposition of organic iron precursors is reported, which results in a simpler and more economical method to produce well crystallized gamma-Fe2O3 nanoparticles (NPs) with average sizes within the 3?17 nm range. The NPs we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3498::444767bcf892a384cf27512a49263a43
http://iopscience.iop.org/article/10.1088/0957-4484/24/17/175601/meta
http://iopscience.iop.org/article/10.1088/0957-4484/24/17/175601/meta
Autor:
Figueroa, Santiago J. A., Stewart, Silvana Jacqueline, Rueda, T., Hernando, Antonio, de la Presa, P.
FePt/Fe₃O₄ nanoparticles can be used as building blocks to obtain, upon thermal annealing, magnetic nanocomposites with combined magnetic properties. Although the pre- and postannealed samples are usually well-characterized, a detailed investigat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1329::ea1283dfe797cd4cd8e608a84ce92568
http://sedici.unlp.edu.ar/handle/10915/142995
http://sedici.unlp.edu.ar/handle/10915/142995
Autor:
Stewart, Silvana Jacqueline, Figueroa, S. J. A., Ramallo López, José Martín, Marchetti, Sergio Gustavo, Bengoa, José Fernando, Prado, R. J., Requejo, Félix Gregorio
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
The nonequilibrium cation site occupancy in nanosized zinc ferrites ( ∼ 6 – 13 nm ) with different degree of inversion ( ∼ 0.2 to 0.4) was investigated using Fe and Zn K -edge x-ray absorption near edge spectroscopy (XANES) and extended x-ray a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::060b9b17cc33fb06a4f2da8a08a0e8a8
http://sedici.unlp.edu.ar/handle/10915/126026
http://sedici.unlp.edu.ar/handle/10915/126026
Autor:
Stewart, Silvana Jacqueline
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
En este trabajo se han investigado propiedades magnéticas del óxido cúprico mediante el dopaje con 57Fe y mediciones de su campo magnético hiperfino utilizando espectroscopia Móssbauer, complementando estos estudios con otras técnicas. Estas fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::dffd1a554a8e3d4cc7a0e4a119b264e6
http://sedici.unlp.edu.ar/handle/10915/2466
http://sedici.unlp.edu.ar/handle/10915/2466