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.
1991
66
387
391
L. Cianchi; F. Del Giallo; F. Pieralli; M. Mancini; S. Sciortino; G. Spina
File in questo prodotto:
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.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/772234
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact