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The Effect of AgNO3 Addition on the Formation and Superconducting Properties of the Bi2223 Phase

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Abstract

Superconducting samples with nominal composition Bi1.66Pb0.34Sr2Ca2Cu2O x –Ag are prepared by the solid-state reaction method. The samples are characterized by X-ray diffraction and DC electrical resistivity. According to X-ray diffraction patterns of specimens, the highest amount of Bi-(2223) phase along with the minimum amount of Bi-(2212) phase and minimum effect on the crystal structure was accessible in the sample with 10 wt. % of AgNO3 content. The standard four-probe technique is applied to measure the DC electrical resistivity in the temperature range from 77 to 250 K and the influence of different Ag contents on the normal phase resistance, transition width and critical temperature T c has been investigated comparatively.

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Authors and Affiliations

  1. Institute of Standard and Industrial Researches, General Office, Urmia, Iran

    H. Najafpour

  2. Department of Physics, Islamic Azad University, Urmia, Iran

    S. H. R. Shojaei

  3. Department of Mechanics, Islamic Azad University, Khoy, Iran

    S. M. Shojaei

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  1. H. Najafpour
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  2. S. H. R. Shojaei
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  3. S. M. Shojaei
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Correspondence to S. H. R. Shojaei.

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Najafpour, H., Shojaei, S.H.R. & Shojaei, S.M. The Effect of AgNO3 Addition on the Formation and Superconducting Properties of the Bi2223 Phase. J Supercond Nov Magn 23, 487–491 (2010). https://doi.org/10.1007/s10948-009-0603-5

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  • DOI: https://doi.org/10.1007/s10948-009-0603-5

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