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Superconducting and Structural Properties of the (Ba0.6K0.4) (Bi1-YSbY)O3 System

  • B. Dabrowski (a1), S. Pei (a1), D.R. Richards (a1), Y. Zheng (a1), J.D. Jorgensen (a1), D.G. Hinks (a1), C.D. Kimball (a2) and A.W. Mitchell (a1)...

Abstract

Single‐phase samples of (Ba1‐xKx)(Bi1‐xSby)O3 have been synthesized over a limited compositional range using a two‐step procedure: high‐temperature firing in a low oxygen partial pressure followed by low‐temperature oxygen annealing. For y=0 and 0.37<x<0.50, samples have a simple cubic structure and are bulk superconductors with Tc gradually decreasing from 30 to 22K as x increases to 0.50. For fixed x and y>0 samples are superconducting again with a simple cubic structure and with Tc gradually decreasing as y increases.

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1 Mattheiss, L.R., Gyorgy, E.M., and Johnson, D.W. Jr., Phys. Rev. B 37. 3745 (1988)
2 Cava, R.J., Batlogg, B., Krajewski, J.J., Farrow, R., Rupp, L.W. Jr., White, A.E., Short, K., Peck, W.F., and Kometani, T., Nature 332. 814 (1988)
3 Hinks, D.G., Dabrowski, B., Jorgensen, J.D., Mitchell, A.W., Richards, D.R., Shiyou Pei, , and Donglu Shi, , Nature 333, 836 (1988)
4 Hinks, D.G., Dabrowski, B., Richards, D.R., Jorgensen, J.D., Shiyou Pei and J.F. Zasadzinski in High Temperature Superconductors: Relationships Between Properties. Structure and Solid‐State Chemistry>, edited by Jorgensen, J.D., Kitazawa, K., Tarascon, J.‐M., Thompson, M.S. and Torrance, J.B. (Mater. Res. Proc. 156, pp. 357367.
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Superconducting and Structural Properties of the (Ba0.6K0.4) (Bi1-YSbY)O3 System

  • B. Dabrowski (a1), S. Pei (a1), D.R. Richards (a1), Y. Zheng (a1), J.D. Jorgensen (a1), D.G. Hinks (a1), C.D. Kimball (a2) and A.W. Mitchell (a1)...

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