toggle visibility Search & Display Options

Select All    Deselect All
 |   | 
Details
   print
  Records Links
Author Blanco, M.C.; Franco, D.G.; Jalit, Y.; Pannunzio Miner, E.V.; Berndt, G.; Paesano Jr., A.; Nieva, G.; Carbonio, R.E. url  openurl
  Title Synthesis, magnetic properties and Mössbauer spectroscopy for the pyrochlore family Bi2BB′O7 with B=Cr and Fe and B′=Nb, Ta and Sb Type Journal Article
  Year (up) 2012 Publication Physica B: Condensed Matter Abbreviated Journal Frontiers of Condensed Matter V (FCM 2010)  
  Volume 407 Issue 16 Pages 3078-3080  
  Keywords Pyrochlores; Crystal structure; Magnetism; Mösbauer spectroscopy; Displacive disorder  
  Abstract The samples Bi2BB′O7, with B=Cr and Fe and B′=Nb, Ta and Sb were prepared by solid state method. The crystallographic structure was investigated on the basis of X-ray powder diffraction data. Rietveld refinements show that the crystal structure is cubic, space group Fd-3m. The Bi3+ cation on the eight-coordinate pyrochlore A-site shows displacive disorder, as a consequence of its lone pair electron configuration. There is also a considerable A-site disorder shown by Rietveld Analysis and confirmed in the case of the iron containing samples with Mössbauer spectroscopy. The magnetic measurements show paramagnetic behavior at all temperatures for the Cr oxides. The Fe pyrochlores show antiferromagnetic order around 10 K.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0921-4526 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number BT @ hernan @ Serial 647  
Permanent link to this record
 

 
Author Gil, D.M.; Guimpel, J.; Paesano Jr., A.; Carbonio, R.E.; Gómez, M.I. url  doi
openurl 
  Title Y[Fe1−xCox(CN)6]·4H2O (0 ⩽ x ⩽ 1) solid solutions: Synthesis, crystal structure, thermal decomposition and spectroscopic and magnetic properties Type Journal Article
  Year (up) 2012 Publication Journal of Molecular Structure Abbreviated Journal  
  Volume 1015 Issue Pages 112-117  
  Keywords Y[Fe1−xCox(CN)6]·4H2O; Crystal structure refinement; Rietveld analysis; Infrared spectroscopy; Thermal decomposition  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0022-2860 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number BT @ jguimpel @ Serial 645  
Permanent link to this record
Select All    Deselect All
 |   | 
Details
   print

Save Citations:
Export Records: