The interplay of oxygen non-stoichiometry and defects in Ga-doped layered cobaltites

2019 ◽  
Vol 339 ◽  
pp. 115002 ◽  
Author(s):  
E.A. Antipinskaya ◽  
S.N. Marshenya ◽  
B.V. Politov ◽  
A.Yu. Suntsov
Keyword(s):  
Layered Cobaltites

The contribution of narrow band and modulation of thermoelectric performance in doped layered cobaltites Bi2Sr2Co2Oy

2012 ◽  
Vol 100 (17) ◽  
pp. 173503 ◽  
Author(s):  
L. H. Yin ◽  
R. Ang ◽  
Y. N. Huang ◽  
H. B. Jiang ◽  
B. C. Zhao ◽  
...  
Keyword(s):  
Narrow Band ◽  
Thermoelectric Performance ◽  
Layered Cobaltites

scholarly journals Spin-Glass Transition in the RCoGaO_{4} (R=Lu, Yb) Layered Cobaltites

2014 ◽  
Vol 126 (1) ◽  
pp. 230-231 ◽  
Author(s):  
I. Radelytskyi ◽  
R. Szymczak ◽  
H.A. Dabkowska ◽  
H.M.L. Noad ◽  
P. Aleshkevych ◽  
...  
Keyword(s):  
Glass Transition ◽  
Spin Glass ◽  
Layered Cobaltites ◽  
Spin Glass Transition

Effects on the physical properties of cation substitution in the layered cobaltites

2007 ◽  
Vol 398 (2) ◽  
pp. 223-228 ◽  
Author(s):  
G. Aurelio ◽  
J. Curiale ◽  
R.D. Sánchez ◽  
G.J. Cuello
Keyword(s):  
Physical Properties ◽  
Cation Substitution ◽  
Layered Cobaltites

Synthesis and thermoelectric properties of Bi2.5Ca2.5Co2Ox layered cobaltites

2005 ◽  
Vol 20 (4) ◽  
pp. 1002-1008 ◽  
Author(s):  
Emmanuel Guilmeau ◽  
Masashi Mikami ◽  
Ryoji Funahashi ◽  
Daniel Chateigner
Keyword(s):  
High Temperature ◽  
Liquid Phase ◽  
Hot Forging ◽  
Polycrystalline Materials ◽  
Phase Reaction ◽  
X Ray Diffraction ◽  
Preferential Formation ◽  
Layered Cobaltites ◽  
Sintering Time ◽  
Liquid Phase Reaction

Bi–Ca–Co–O polycrystalline materials with a layered structure were prepared. The synthesis of the sintered specimens from two starting compositions, Bi1.8Ca2Co2Oxand Bi2.5Ca2.5Co2Ox, revealed the latter is preferentially formed at high temperature(850 °C). The increase in sintering time was shown by growth of large platelike grains (up to 50 μm in diameter and several micrometers in thickness). The reaction mechanisms during the heat treatment and the preferential formation of the Bi2.5Ca2.5Co2Ox phase were observed by x-ray diffraction, thermogravimetry–differential thermal analysis, and scanning electron microscopy. These techniques supposed the presence of a liquid phase at high temperature, origin of a highly kinetic phase formation, and the growth of large grains. Interestingly the liquid phase reaction promotes an efficient stacking and sliding of grains during hot-forging treatment, and highly (00l) oriented materials were prepared. A relationship between thermoelectric performance, texture strength, and microstructure is clarified.

Thermal expansion of layered cobaltites Y(Ba1 −xSrx)Co2O5 + δwithx= 0, 0.05 and 0.10

2011 ◽  
Vol 23 (31) ◽  
pp. 315403 ◽  
Author(s):  
G Aurelio ◽  
S Bustingorry ◽  
R D Sánchez ◽  
G J Cuello
Keyword(s):  
Thermal Expansion ◽  
Layered Cobaltites

Electronic States of Cobalt Ions in EuBaCo2O5 + δ Layered Cobaltites

JETP Letters ◽  
2021 ◽  
Vol 114 (8) ◽  
pp. 475-478
Author(s):  
M. S. Udintseva ◽  
A. V. Efremov ◽  
D. Smirnov ◽  
A. Makarova ◽  
S. V. Naumov ◽  
...  
Keyword(s):  
Electronic States ◽  
Cobalt Ions ◽  
Layered Cobaltites

scholarly journals Influence of local structure on magnetic properties of layered cobaltites PrBaCo2O5+δ, δ > 0.5

2012 ◽  
Vol 24 (47) ◽  
pp. 476003 ◽  
Author(s):  
S Ganorkar ◽  
K R Priolkar ◽  
P R Sarode ◽  
A Banerjee ◽  
R Rawat ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Local Structure ◽  
Layered Cobaltites

Perovskite manganites and layered cobaltites: potential materials for thermoelectric applications

2002 ◽  
Vol 5 (3-4) ◽  
pp. 365-382 ◽  
Author(s):  
Antoine Maignan ◽  
Sylvie Hébert ◽  
Li Pi ◽  
Denis Pelloquin ◽  
Christine Martin ◽  
...  
Keyword(s):  
Perovskite Manganites ◽  
Layered Cobaltites
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