Voluminöser Oxid-Supraleiter in Form eines Einkristalls und Verfahren zu dessen Herstellung

摘要

Enlargement of a crystal of a bulk oxide superconductor of REBa2Cu3O7-x, wherein RE is at least one of Y and rare earth elements, is effected by three dimensionally arranging layers of REBa2Cu3O7-x with a different RE in the order of decreasing (123) phase formation temperatures from the center outward, or by forming a stack of layers of RE Ba2 Cu3 O7-x with a different RE in the order of decreasing (123) phase formation temperatures; the size of the layer being enlarged along with a decrease in the (123) phase formation temperature.