Spin state and structural changes at the metal-insulator transition in YBaCo2O5.5 by synchrotron x-rays

2012 ◽  
Vol 111 (7) ◽  
pp. 07D710 ◽  
Author(s):  
J. Padilla-Pantoja ◽  
C. Frontera ◽  
J. Herrero-Martín ◽  
J. Luis García-Muñoz
2008 ◽  
Vol 20 (14) ◽  
pp. 145216 ◽  
Author(s):  
F Conchon ◽  
A Boulle ◽  
R Guinebretière ◽  
E Dooryhée ◽  
J-L Hodeau ◽  
...  

2008 ◽  
Vol 10 (12) ◽  
pp. 123030 ◽  
Author(s):  
M Lafkioti ◽  
E Goering ◽  
S Gold ◽  
G Schütz ◽  
S N Barilo ◽  
...  

2007 ◽  
Vol 75 (18) ◽  
Author(s):  
R. Lengsdorf ◽  
J.-P. Rueff ◽  
G. Vankó ◽  
T. Lorenz ◽  
L. H. Tjeng ◽  
...  

2005 ◽  
Vol 71 (1) ◽  
Author(s):  
J. Baier ◽  
S. Jodlauk ◽  
M. Kriener ◽  
A. Reichl ◽  
C. Zobel ◽  
...  

2002 ◽  
Vol 320 (1-4) ◽  
pp. 71-74 ◽  
Author(s):  
C Piamonteze ◽  
H.C.N Tolentino ◽  
A.Y Ramos ◽  
N.E Massa ◽  
J.A Alonso ◽  
...  

2000 ◽  
Vol 658 ◽  
Author(s):  
Mark T. Weller ◽  
Paul F. Henry ◽  
C.C. Wilson

ABSTRACTThe use of isotopically enriched materials on high intensity neutron powder diffractometers allows the derivation of much higher quality structural information than has hitherto been possible. The technique can be applied to materials such as ferroelectrics, superconductors and oxides exhibiting colossal magneto-resistance, where small structural changes associated with phase transitions need to be characterised. Three isotopically pure samples of samarium nickelate have been studied around the metal-insulator transition at 403 K. Simultaneous multi-histogram refinements permit extraction of very high quality structural information that shows smooth variations in bond lengths and angles with all nickel oxygen distances decreasing as the electrons localise.


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