Cerium distribution coefficient and its dependence on oxygen partial pressure in Nd2−xCexCuO4 single crystal growth

1993 ◽  
Vol 218 (3-4) ◽  
pp. 437-442 ◽  
Author(s):  
K. Gamayunov ◽  
I. Tanaka ◽  
H. Kojima
Keyword(s):  
Crystal Growth ◽  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Single Crystal ◽  
Distribution Coefficient ◽  
Single Crystal Growth

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.

Single-crystal growth and characterization of the Pb0.5Sr2.5Y1−xCaxCu2Oy system

1995 ◽  
Vol 10 (9) ◽  
pp. 2211-2215 ◽  
Author(s):  
H. Jin ◽  
N.L. Wang ◽  
Y. Chong ◽  
M. Deng ◽  
L.Z. Cao ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Single Crystals ◽  
Single Crystal Growth ◽  
Optimum Conditions ◽  
Flux Method ◽  
Ca Doping ◽  
Spontaneous Nucleation

Two kinds of methods such as spontaneous nucleation from flux-free stoichiometric melt and CuO flux method have been used for the growth of Pb0.5Sr2.5Y1−xCaxCu2Oy single crystals. The morphologies, phases, and compositions occurring in the crystals grown from the two kinds of methods were compared systematically. Optimum conditions for the growth of larger 1212 phase single crystals are x =0.15, 0.25, and 0.35. The lattice parameters of the crystals with the 1212 phase were found to be increasing upon Ca doping. The resistivity behavior of the PbSrYCaCuO single crystals with the 1212 phase both in the state of as-grown and after extended annealings under various oxygen partial pressure was also discussed briefly.

Unsteady 3D and analytical analysis of segregation process in floating zone silicon single crystal growth

2009 ◽  
Vol 45 (4) ◽  
pp. 549-556 ◽  
Author(s):  
K. Lācis ◽  
◽  
A. Muižnieks ◽  
N. Jēkabsons ◽  
A. Rudevičs ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Single Crystal Growth ◽  
Silicon Single Crystal ◽  
Floating Zone ◽  
Analytical Analysis ◽  
Segregation Process

scholarly journals Epitaxial Single‐Crystal Growth of Transition Metal Dichalcogenide Monolayers via the Atomic Sawtooth Au Surface

2021 ◽  
pp. 2006601
Author(s):  
Soo Ho Choi ◽  
Hyung‐Jin Kim ◽  
Bumsub Song ◽  
Yong In Kim ◽  
Gyeongtak Han ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Transition Metal ◽  
Single Crystal ◽  
Single Crystal Growth ◽  
Transition Metal Dichalcogenide
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