TY - JOUR
T1 - The crystal structure of (C0.4Cu0.6)Sr2(Y0.86Sr0.14)Cu2O7
AU - Miyazaki, Y.
AU - Yamane, H.
AU - Ohnishi, N.
AU - Kajitani, T.
AU - Hiraga, K.
AU - Morii, Y.
AU - Funahashi, S.
AU - Hirai, T.
N1 - Funding Information:
The authors thank Toshihiko Maeda of the Fu-rukawa Electric Co., Ltd. for his helpful discussions. This work was supported, in part, by a Grant-in-Aid for Scientific Research on Priority Areas under Contract No. 04240204a nd a Grant-in-Aid for New Program under Contract No. 03NP0501 from the Ministry of Education, Science and Culture, Japan.
PY - 1992/7/20
Y1 - 1992/7/20
N2 - The crystal structure of a new compound, (C0.4Cu0.6)Sr2(Y0.86Sr0.14)Cu2O7, is derived from the structure of YBa2Cu3O7. Forty percent of CuO chains in the YBa2Cu3O7 structure are replaced by CO3 groups. This new compound has a superstructure along the a-axis and the c-axis. Diffuse superlattice reflections having periods of a*/2-a*/3 and c*/2 were observed in electron diffraction patterns. Locally ordered distributions of C and Cu atoms were seen high-resolution images taken by transmission electron microscopy with an incident beam parallel to [010]. The basic structure of this superstructure was determined by neutron powder diffraction, assuming orthorhombic symmetry with the space group, Pmmm (lattice constants: a=3.8278(2), b=3.8506(2) and c=11.1854(5) A ̊).
AB - The crystal structure of a new compound, (C0.4Cu0.6)Sr2(Y0.86Sr0.14)Cu2O7, is derived from the structure of YBa2Cu3O7. Forty percent of CuO chains in the YBa2Cu3O7 structure are replaced by CO3 groups. This new compound has a superstructure along the a-axis and the c-axis. Diffuse superlattice reflections having periods of a*/2-a*/3 and c*/2 were observed in electron diffraction patterns. Locally ordered distributions of C and Cu atoms were seen high-resolution images taken by transmission electron microscopy with an incident beam parallel to [010]. The basic structure of this superstructure was determined by neutron powder diffraction, assuming orthorhombic symmetry with the space group, Pmmm (lattice constants: a=3.8278(2), b=3.8506(2) and c=11.1854(5) A ̊).
UR - http://www.scopus.com/inward/record.url?scp=0026898477&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026898477&partnerID=8YFLogxK
U2 - 10.1016/0921-4534(92)90258-E
DO - 10.1016/0921-4534(92)90258-E
M3 - Article
AN - SCOPUS:0026898477
VL - 198
SP - 7
EP - 13
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 1-2
ER -