Effect of alpha irradiation on polycrystalline Bi-2223 superconductors

Bandyopadhyay, S.K. ; Barat, P. ; Pintu, Sen ; Udayan, De ; De, A. ; Mukhopadhyay, P.K. ; Kar, S.K. ; Majumdar, C. K. (1994) Effect of alpha irradiation on polycrystalline Bi-2223 superconductors Physica C: Superconductivity, 228 (1-2). pp. 109-114. ISSN 0921-4534

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/092145...

Related URL: http://dx.doi.org/10.1016/0921-4534(94)90180-5


Polycrystalline samples of Bi1.84Pb0.34Sr1.91Ca2.03Cu3.06O10+x((Bi, Pb)-2223) with Tc(R = 0) = 112 K have been irradiated by a particles of 40 MeV energy up to a maximum dose of 1.5 × 1016 α/cm2. Tc is observed to decrease with increasing dose. At the highest dose, semiconducting behavior is observed in resistivity measurements, and X-ray diffraction and scanning electron microscopy indicate partial amorphization. Tc has not been recovered by annealing. The possible mechanism of radiation damage in (Bi, Pb)-2223 is discussed; it appears to be different from the mechanism in Bi2Sr2CaCu2O8+x (Bi-2212).

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