Local Environment Around Barium Atoms in the Superconductor Y-Ba-Cu-O

1987 ◽  
Vol 99 ◽  
Author(s):  
A. Krol ◽  
F. Xu ◽  
L. Y. Jang ◽  
C. J. Sher ◽  
S. Spagna ◽  
...  

ABSTRACTThe local structure around Ba atoms in the compound superconductor Y-Ba-Cu-O has been studied by measuring the extended x-ray absorption fine structure (EXAFS) near the Ba K edge. This technique is used to investigate the changes in the short range order structure when the system is doped with impurities.

2000 ◽  
Vol 87 (10) ◽  
pp. 7218-7226 ◽  
Author(s):  
Dirk C. Meyer ◽  
Kurt Richter ◽  
Peter Paufler ◽  
Peter Gawlitza ◽  
Thomas Holz

1999 ◽  
Vol 145 (1) ◽  
pp. 253-259 ◽  
Author(s):  
Egil Gulbrandsen ◽  
Hege Britt Johnsen ◽  
Monica Endregaard ◽  
Tor Grande ◽  
Svein Stølen

2013 ◽  
Vol 138 (6) ◽  
pp. 064202 ◽  
Author(s):  
Anatoly I. Frenkel ◽  
Qi Wang ◽  
Sergio I. Sanchez ◽  
Matthew W. Small ◽  
Ralph G. Nuzzo

2003 ◽  
Vol 805 ◽  
Author(s):  
Anne Sadoc ◽  
Van T. Huett ◽  
K. F. Kelton

ABSTRACTThe evolution of the short-range order in a Ti-Hf-Ni 3/2 approximant phase, has been studied as a function of hydrogenation by means of extended X-ray absorption fine structure (EXAFS). The local structure of the non-hydrogenated alloy has been derived from that of 1/1 Ti-Zr-Ni. After hydrogenation, drastic changes are observed in the local structure of Ti-Hf-Ni. Preliminary results of the EXAFS analysis are also presented for an amorphous Ti-Hf-Ni alloy.


1992 ◽  
Vol 46 (11) ◽  
pp. 6718-6723 ◽  
Author(s):  
S. Pascarelli ◽  
F. Boscherini ◽  
S. Mobilio ◽  
A. R. Zanatta ◽  
F. C. Marques ◽  
...  

1985 ◽  
Vol 49 (350) ◽  
pp. 25-29 ◽  
Author(s):  
A. Hardwick ◽  
E. J. W. Whittaker ◽  
G. P. Diakun

AbstractShort-range order in the oxygen co-ordination shell of the Ca ion in a glass of composition Ca3Mg4Al2Si7O24 is investigated by analysis of the extended X-ray absorption fine structure. The estimate of disorder in the short-range oxygen co-ordination is no greater than that for crystalline samples of diopside and bytownite. An estimate of the oxygen environment of calcium in the particular glass is included.


Sign in / Sign up

Export Citation Format

Share Document