1C-b Solid solutions with complex perovskite-type oxides as end members

Author(s):  
M. Adachi ◽  
J. Harada ◽  
T. Ikeda ◽  
S. Nomura ◽  
E. Sawaguchi ◽  
...  
2004 ◽  
Vol 19 (2) ◽  
pp. 488-495 ◽  
Author(s):  
H. Zheng ◽  
I.M. Reaney ◽  
G.D.C. Csete de Györgyfalva ◽  
R. Ubic ◽  
J. Yarwood ◽  
...  

Perovskite-structured solid solutions intended for use as microwave dielectric resonators were studied by Raman spectroscopy. Two distinct categories were investigated: (i) simple perovskite–simple perovskite solid solutions, that is, CaTiO3–SrTiO3 (CTST), CaTiO3–CaZrO3 (CTCZ), CaTiO3–NdAlO3 (CTNA), and CaTiO3–LaGaO3 (CTLG); and (ii) simple perovskite–complex perovskite solid solutions, such as CaTiO3–SrMg1/3Nb2/3O3 (CTSMN). In the latter category, the influence of A-site ion radius was also addressed by examining 0.5CaTiO3– 0.5LaMg1/2Ti1/2O3 (0.5CT–0.5LMT), 0.5SrTiO3 (ST)–0.5LMT, and 0.5BaTiO3 (BT)–0.5LMT. Raman data from the end members and solid solutions are compared, paying particular attention to F2g and A1g mode bands, often associated with ordering of B-site species.


ChemInform ◽  
2013 ◽  
Vol 44 (28) ◽  
pp. no-no
Author(s):  
Snezana Boskovic ◽  
Slavica Zec ◽  
Branko Matovic ◽  
Zorana Dohcevic-Mitrovic ◽  
Zoran Popovic ◽  
...  

ChemInform ◽  
2010 ◽  
Vol 33 (41) ◽  
pp. no-no
Author(s):  
Dante Cordischi ◽  
Sergio De Rossi ◽  
Marco Faticanti ◽  
Giuliano Minelli ◽  
Piero Porta

Author(s):  
Apuleyo Hernández-Pérez ◽  
Lauro Bucio ◽  
Alejandro Ibarra-Palos ◽  
María Elena Villafuerte-Castrejón

AbstractIn this work, a complete crystallochemical characterization of two solid solutions, which were founded in the binary end members system LaStructure refinements of Eu


1963 ◽  
Vol 24 (1) ◽  
pp. 85-93 ◽  
Author(s):  
V.J. Johnson ◽  
M.W. Valenta ◽  
J.E. Dougherty ◽  
R.M. Douglass ◽  
J.W. Meadows

2015 ◽  
Vol 127 (10) ◽  
pp. 2900-2900 ◽  
Author(s):  
Chengsi Pan ◽  
Tsuyoshi Takata ◽  
Mamiko Nakabayashi ◽  
Takao Matsumoto ◽  
Naoya Shibata ◽  
...  

2010 ◽  
Vol 74 (6) ◽  
pp. 969-978 ◽  
Author(s):  
I. E. Grey ◽  
W. G. Mumme ◽  
S. M. Neville ◽  
N. C. Wilson ◽  
W. D. Birch

AbstractSecondary phosphate assemblages from the Hagendorf Süd granitic pegmatite, containing the new Mn-Al phosphate mineral, nordgauite, have been characterized using scanning electron microscopy and electron microprobe analysis. Nordgauite nodules enclose crystals of the jahnsite—whiteite group of minerals, showing pronounced compositional zoning, spanning the full range of Fe/Al ratios between jahnsite and whiteite. The whiteite-rich members are F-bearing, whereas the jahnsite-rich members contain no F. Associated minerals include sphalerite, apatite, parascholzite, zwieselite-triplite solid solutions and a kingsmountite-related mineral. The average compositions of whiteite and jahnsite from different zoned regions correspond to jahnsite-(CaMnMn), whiteite-(CaMnMn) and the previously undescribed whiteite-(CaMnFe) end-members. Mo-Kα CCD intensity data were collected on a twinned crystal of the (CaMnMn)-dominant whiteite and refined in P2/a to wRobs = 0.064 for 1015 observed reflections.


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