Superconductivity in Bi2.2Ca2.8−x Sr x Cu2O y system and effect of rare earth substitution

Pramana ◽  
1988 ◽  
Vol 30 (5) ◽  
pp. L477-L481 ◽  
Author(s):  
Ram Prasad ◽  
N C Soni ◽  
A Gulnar ◽  
C V Tomy ◽  
D T Adroja ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Substitution

Vitusite — an apatite derivative structure

1992 ◽  
Vol 56 (383) ◽  
pp. 235-239 ◽  
Author(s):  
Adrian A. Finch ◽  
James G. Fletcher
Keyword(s):  
Rare Earth ◽  
Late Stage ◽  
Sensu Stricto ◽  
Hydrothermal Fluids ◽  
Stable Phase ◽  
Synthetic Analogue ◽  
Apatite Structure ◽  
Phosphate Mineral ◽  
Rare Earth Phosphate ◽  
Rare Earth Substitution

AbstractThe uncommon sodium rare-earth phosphate mineral vitusite-(Ce) (Na3RE(PO4)2) can be considered as the extreme product of sodium and rare-earth substitution in the apatite structure. Lesser amounts of substitution provide sodium and rare-earth-bearing apatites up to about 80 mol.% exchange; beyond this point vitusite is the stable phase. The structure of vitusite, determined previously from a synthetic analogue, can also be considered as a derivative from apatite, but with cations exchanged on sites normally occupied by anions. Vitusite can therefore be considered as a sodium- and rare-earthrich apatite end-member, with a distinct, but apatite-derived, structure, formed in highly persodic and high rare-earth environments. From an examination of the literature on diffusion in apatite, vitusite in principle could be formed from apatitesensu strictoby subsolidus diffusion in response to late-stage NaandRE-rich hydrothermal fluids.

Rare‐earth substitution in (BiYCa)3(FeSiGe)5O12bubble films

1987 ◽  
Vol 61 (1) ◽  
pp. 325-327 ◽  
Author(s):  
L. C. Luther ◽  
S. E. G. Slusky ◽  
C. D. Brandle ◽  
M. P. Norelli
Keyword(s):  
Rare Earth ◽  
Rare Earth Substitution

Consequence of isovalent rare earth substitution to magnetic irreversibility in cation-stoichiometric CuBa2RECu2O6.93±0.01

2001 ◽  
Vol 78 (19) ◽  
pp. 2917-2919 ◽  
Author(s):  
Yukiko Yasukawa ◽  
Takayuki Nakane ◽  
Hisao Yamauchi ◽  
Maarit Karppinen
Keyword(s):  
Rare Earth ◽  
Magnetic Irreversibility ◽  
Rare Earth Substitution

scholarly journals Effect of non-magnetic rare earth substitution for Zr on mixed anion Zr(P, Se)2 superconductors

2018 ◽  
Vol 1054 ◽  
pp. 012002 ◽  
Author(s):  
K Iwakiri ◽  
T Nishio ◽  
K Kawashima ◽  
S Ishida ◽  
K Oka ◽  
...  
Keyword(s):  
Rare Earth ◽  
Magnetic Rare Earth ◽  
Rare Earth Substitution

Multiple-order Raman scattering from rare-earth manganites: Oxygen isotope and rare-earth substitution effects

2007 ◽  
Vol 75 (6) ◽  
Author(s):  
M. N. Iliev ◽  
V. G. Hadjiev ◽  
A. P. Litvinchuk ◽  
F. Yen ◽  
Y.-Q. Wang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Raman Scattering ◽  
Oxygen Isotope ◽  
Substitution Effects ◽  
Rare Earth Manganites ◽  
Rare Earth Substitution
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