High-oxygen-pressure crystal growth of ferroelectric Bi4Ti3O12 and (Bi,Na)TiO3 single crystals

Author(s):  
Yuji Noguchi ◽  
Kastuya Yamamoto ◽  
Yuuki Kitanaka ◽  
Muneyasu Suzuki ◽  
Masaru Miyayama
2007 ◽  
Vol 91 (16) ◽  
pp. 162909 ◽  
Author(s):  
Katsuya Yamamoto ◽  
Yuuki Kitanaka ◽  
Muneyasu Suzuki ◽  
Masaru Miyayama ◽  
Yuji Noguchi ◽  
...  

1991 ◽  
Vol 251 ◽  
Author(s):  
T. Miyatake ◽  
T. Takata ◽  
K. Yamaguchi ◽  
K. Takamuku ◽  
N. Koshizuka ◽  
...  

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.


2005 ◽  
Vol 275 (1-2) ◽  
pp. e733-e738 ◽  
Author(s):  
A.M. Balbashov ◽  
L.N. Rybina ◽  
Y.K. Fetisov ◽  
V.F. Meshcheryakov ◽  
G. Srinivasan

2009 ◽  
Vol 117 (1361) ◽  
pp. 32-36 ◽  
Author(s):  
Yuji NOGUCHI ◽  
Shunsuke TERANISHI ◽  
Muneyasu SUZUKI ◽  
Masaru MIYAYAMA

2004 ◽  
Vol 16 (14) ◽  
pp. S1277-S1281 ◽  
Author(s):  
J A Alonso ◽  
A Muñoz ◽  
A Largeteau ◽  
G Demazeau

2001 ◽  
Vol 355 (1-2) ◽  
pp. 140-146 ◽  
Author(s):  
A Maljuk ◽  
B Liang ◽  
C.T Lin ◽  
G.A Emelchenko

2002 ◽  
Vol 237-239 ◽  
pp. 730-734 ◽  
Author(s):  
Jong Kwan Park ◽  
Kwang Bo Shim ◽  
Keun Ho Auh ◽  
Isao Tanaka

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