90K 초전도체 Gd1Ba2Cu3O9-x의 구조에 관한 연구

Structural Study of 90K Superconductor Gd1Ba2Cu3O9-x

  • 발행 : 1988.06.01

초록

Gd1Ba2Cu3O9-x has been found to be a high Tc superconductor with a transitiion onset at 91K and zero resistance achieved at 87K. The structure as determined from x-ray diffraction is orthorhombic, with lattice constants b=3.842$\pm$0.002$\AA$, b=3.895$\pm$0.003$\AA$, and c=11.684$\pm$0.007$\AA$. The structural similarities between the Gd1Ba2Cu3O9-x compound and the well-studied single phase perovskite, Y1Ba2Cu3O9-x are discussed. A correlation between the observed x-ray spectrum and the effect of oxygen deficiencies in several of the unit cell planes is also discussed.

키워드

참고문헌

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