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PHASES AND PHASE TRANSITION IN YBACUO(7-) SUPERCONDUCTORS.

Author(s) : WANG Q.

Type of article: Article

Summary

USING THE CLUSTER VARIATION METHOD AND THE NEAREST AND NEXT NEAREST NEIGHBOUR INTERACTIONS, IE J AND J' BETWEEN OXYGEN AND OXYGEN, OXYGEN AND VACANCY, AND VACANCY AND VACANCY ON THE COPPER-OXIDE PLANE OF YBACUO(7-), THE PHASE DIAGRAMS WERE OBTAINED FOR J'/J = 0, 1/4, 1/2 AND 1. THEORETICAL RESULTS SHOW THAT THE DIAGRAM OF J'/J = 1/4 CAN WELL EXPLAIN THE ORTHORHOMBIC-TETRAGONAL TRANSITION IN YBACUO(7-). THE POSSIBLE PHASES AND PHASE TRANSITION IN YBACUO(7-) ARE PROPOSED.

Details

  • Original title: PHASES AND PHASE TRANSITION IN YBACUO(7-) SUPERCONDUCTORS.
  • Record ID : 1991-0528
  • Languages: English
  • Source: Sci. China, A - vol. 33 - n. 3
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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