scholarly journals High oxygen pressure single crystal growth of highly Ca-doped spin ladder compound Sr14−xCaxCu24O41 (x>12)

2011 ◽  
Vol 327 (1) ◽  
pp. 182-188 ◽  
Author(s):  
Guochu Deng ◽  
D. Mohan Radheep ◽  
R. Thiyagarajan ◽  
Ekaterina Pomjakushina ◽  
Shuang Wang ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Oxygen Pressure ◽  
Single Crystal Growth ◽  
High Oxygen ◽  
Spin Ladder ◽  
High Oxygen Pressure

Single Crystal Growth of YBa2Cu4O8 and Y2Ba4Cu7O15 Under High Oxygen Pressure

1991 ◽  
Vol 251 ◽  
Author(s):  
T. Miyatake ◽  
T. Takata ◽  
K. Yamaguchi ◽  
K. Takamuku ◽  
N. Koshizuka ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Single Crystal ◽  
Single Crystals ◽  
Oxygen Pressure ◽  
Maximum Size ◽  
Single Crystal Growth ◽  
Mixed Gas ◽  
High Oxygen Pressure

ABSTRACTWe investigate the crystal growth of YBa2Cu4O8 (124) and Y2Ba4Cu7O15 (247) in Al2O3 crucibles at an oxygen partial pressure of 20MPa employing an O2- HIP apparatus in a mixed gas environment of Ar-20%O2. Various melts compositions, rich in Ba and Cu, are explored to optimize crystal growth of 124. Large 124 single crystals up to a size of 1×0.5×0.05mm3 are obtained from compositions with about 65˜67%CuO. 247 single crystals having a maximum size of 3×1.5×0.05mm3 are grown from the same composition of melts. 124 crystals exhibit superconductivity at 75K. 247 crystals show Tc of 20K.

The floating zone crystal growth of Ni, Co, Ni–Co, Ni–Zn, and Co–Zn ferrospinels under high oxygen pressure

2005 ◽  
Vol 275 (1-2) ◽  
pp. e733-e738 ◽  
Author(s):  
A.M. Balbashov ◽  
L.N. Rybina ◽  
Y.K. Fetisov ◽  
V.F. Meshcheryakov ◽  
G. Srinivasan
Keyword(s):  
Crystal Growth ◽  
Oxygen Pressure ◽  
High Oxygen ◽  
Floating Zone ◽  
High Oxygen Pressure

Crystal growth of NdNiO3perovskite under high oxygen pressure

2004 ◽  
Vol 16 (14) ◽  
pp. S1277-S1281 ◽  
Author(s):  
J A Alonso ◽  
A Muñoz ◽  
A Largeteau ◽  
G Demazeau
Keyword(s):  
Crystal Growth ◽  
Oxygen Pressure ◽  
High Oxygen ◽  
High Oxygen Pressure

scholarly journals Influence of Partial Oxygen Pressure and Sr/Ca Ratio on the Single Crystal Growth of the Bi2Sr2CaCu2Ox Superconductor.

1992 ◽  
Vol 27 (2) ◽  
pp. 158-165 ◽  
Author(s):  
Ichiro SHIGAKI ◽  
Katsuki KITAHAMA ◽  
Kazuyuki SHIBUTANI ◽  
Seiji HAYASHI ◽  
Rikurou OGAWA ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Oxygen Pressure ◽  
Single Crystal Growth ◽  
Partial Oxygen Pressure ◽  
Partial Oxygen

Crystal growth of YBa2Cu4O8 and Y2Ba4Cu7O15 under high oxygen pressure

1992 ◽  
Vol 7 (1) ◽  
pp. 5-10 ◽  
Author(s):  
Takayuki Miyatake ◽  
Tsutomu Takata ◽  
Koji Yamaguhi ◽  
Kenshi Takamuku ◽  
Naoki Koshizuka ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Oxygen Pressure ◽  
High Oxygen ◽  
High Oxygen Pressure

Investigation on crystal growth of BiSrCuO system under high oxygen pressure using TSFZ method

2000 ◽  
Vol 341-348 ◽  
pp. 541-542 ◽  
Author(s):  
C.T. Lin ◽  
B. Liang ◽  
M. Freiberg ◽  
K. Peters ◽  
E. Schönherr
Keyword(s):  
Crystal Growth ◽  
Oxygen Pressure ◽  
High Oxygen ◽  
High Oxygen Pressure

Crystal Growth of RNiO3 Perovskites Under High Oxygen Pressure and Hydrothermal Conditions.

2005 ◽  
Vol 878 ◽  
Author(s):  
J.A. Alonso ◽  
M.J. Martínez-Lope ◽  
M.T. Casais ◽  
A. Muñoz ◽  
A. Largeteau ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Oxygen Pressure ◽  
High Oxygen ◽  
Water Vapor Transport ◽  
Powder Materials ◽  
Hydrothermal Conditions ◽  
Piston Cylinder ◽  
Heating And Cooling ◽  
Dsc Measurements ◽  
High Oxygen Pressure

AbstractWell-shaped single crystals of RNiO3 perovskites (R= Nd, Ho, Y) have been grown under high oxygen pressure conditions, in a piston-cylinder press at 2 GPa or in a belt-type press at 4 GPa. The reaction took place in sealed platinum capsules, in the presence of KClO3 as oxidizing agent. It seems that the choice of hydroxides of the involved cations as precursors is crucial for the success of the crystal growth, via water vapor transport reactions. The perovskites have been characterized by X-ray diffraction, scanning microscopy and DSC measurements, suitable to identify the metal insulator transition. The transition temperatures of the as-grown crystals show a significantly lower hysteresis in the heating and cooling runs than those reported for powder materials, suggesting a lower density of defects.

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