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High temperature superconductivity in bismuth-alkaline earth-copper-oxygen system

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Abstract

Electrical resistivity measurements of a series of compounds in the bismuth-alkaline earth-copper-oxygen system have been carried out. Several compositions (BiSrCaCu2O x , BiSrCaCu3O x , Bi2Sr2CaCu4O x and Bi4Sr3Ca3Cu8O x ) showed superconducting onset temperatures in the range 90–130 K, though none of them showedT cf(R=0) above 77 K. ExtrapolatedT cf of three compounds are in the range 72–75 K. All compounds are multiphasic.

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Authors and Affiliations

  1. Chemistry Division, Bhabha Atomic Research Centre, 400 085, Trombay, Bombay, India

    I K Gopalakrishnan, P V P S S Sastry, K Gangadharan, J V Yakhmi, G M Phatak & R M Iyer

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  1. I K Gopalakrishnan
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  2. P V P S S Sastry
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  3. K Gangadharan
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  4. J V Yakhmi
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  5. G M Phatak
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  6. R M Iyer
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Gopalakrishnan, I.K., Sastry, P.V.P.S.S., Gangadharan, K. et al. High temperature superconductivity in bismuth-alkaline earth-copper-oxygen system. Pramana - J. Phys. 30, L469–L471 (1988). https://doi.org/10.1007/BF02935604

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  • DOI: https://doi.org/10.1007/BF02935604

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