Effect of Fe substitution on the magnetic and electrical properties of the (Bi1.6Pb0.4)(Sr1.8Ba0.2)Ca2(Cu1−xFex)3Oy superconductor
1996; Elsevier BV; Volume: 241; Issue: 1-2 Linguagem: Inglês
10.1016/0925-8388(96)02321-3
ISSN1873-4669
AutoresA. V. POP, Gh. Ilonca, D. Ciurchea, M. YE, Ion Geru, В. Г. Канцер, V. Pop, M. Todicaˇ, R. Deltour,
Tópico(s)Magnetic Properties and Applications
ResumoThe partial substitution of Fe for Cu on the electrical and magnetic properties of (Bi1.6Pb0.4)(Sr1.8Ba0.2)Ca2(Cu1−xFex)3Oy (0 × 0.05) has been investigated by electrical resistance, magnetic a.c. and static susceptibilities measurements. The superconducting transition temperatureTc decreases with increasing Fe concentration and the samples are characterized by a linear temperature dependence of the electrical resistance above2Tc. The excess conductivity was analyzed. The inter- and intragrain critical temperatures are affected differently. Static susceptibility yielded the effective magnetic moments corresponding to the high spin state of Fe.
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