TY - JOUR
T1 - Superconductivity in impurity-induced tetragonal YBa2(Cu1-xFex)3O7-δ
AU - Maeno, Yoshiteru
AU - Kato, Masatsune
AU - Aoki, Yuji
AU - Fujita, Toshizo
PY - 1987/12
Y1 - 1987/12
N2 - Lattice deformation and superconductivity in YBa2(Cu1-xFex)3O7-δ are studied in detail. An orthorhombic to tetragonal phase change is induced at xc≈0.02. A phase diagram in the temperature-concentration plane clarifies two regions of the tetragonal phase: one is, as known previously, induced mainly by the release of oxygen, and the other by the direct action of impurities. Bulk nature of superconductivity in the novel impurity-induced tetragonal phase is confirmed by magnetic susceptibility measurements.
AB - Lattice deformation and superconductivity in YBa2(Cu1-xFex)3O7-δ are studied in detail. An orthorhombic to tetragonal phase change is induced at xc≈0.02. A phase diagram in the temperature-concentration plane clarifies two regions of the tetragonal phase: one is, as known previously, induced mainly by the release of oxygen, and the other by the direct action of impurities. Bulk nature of superconductivity in the novel impurity-induced tetragonal phase is confirmed by magnetic susceptibility measurements.
UR - http://www.scopus.com/inward/record.url?scp=0023600615&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0023600615&partnerID=8YFLogxK
U2 - 10.1143/JJAP.26.L1982
DO - 10.1143/JJAP.26.L1982
M3 - Article
AN - SCOPUS:0023600615
SN - 0021-4922
VL - 26
SP - L1982-L1984
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
IS - 12 A
ER -