Moessbauer parameters of 151Eu in Eu l+xBa2 Cu3O7+delta have been studied as a function of temperature, for x = 0.15 and x = 0.25. The areas of the absorption spectra for the two samples are almost equal. This could mean that the f-Moessbauer factor for 151Eu at the barium sites is much smaller than that for 151Eu at the rare earth sites, i.e. we only observe the spectra of the latter sites. According to this, the fits of the spectra with a single quadrupolar pattern and with two quadrupolar patterns have given equivalent chi square values.
151-Eu Mossbauer studies on Eu(l+x)Ba(2-x)Cu(3)O(7+delta) oxide systems / L. Cianchi; F. Del Giallo; F. Pieralli; M. Mancini; S. Sciortino; G. Spina. - In: HYPERFINE INTERACTIONS. - ISSN 0304-3843. - STAMPA. - 66:(1991), pp. 387-391.
151-Eu Mossbauer studies on Eu(l+x)Ba(2-x)Cu(3)O(7+delta) oxide systems
SCIORTINO, SILVIO;SPINA, GABRIELE
1991
Abstract
Moessbauer parameters of 151Eu in Eu l+xBa2 Cu3O7+delta have been studied as a function of temperature, for x = 0.15 and x = 0.25. The areas of the absorption spectra for the two samples are almost equal. This could mean that the f-Moessbauer factor for 151Eu at the barium sites is much smaller than that for 151Eu at the rare earth sites, i.e. we only observe the spectra of the latter sites. According to this, the fits of the spectra with a single quadrupolar pattern and with two quadrupolar patterns have given equivalent chi square values.File | Dimensione | Formato | |
---|---|---|---|
fulltext.pdf
accesso aperto
Tipologia:
Versione finale referata (Postprint, Accepted manuscript)
Licenza:
Open Access
Dimensione
229.63 kB
Formato
Adobe PDF
|
229.63 kB | Adobe PDF |
I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.