ANALYSIS OF THE RESULTS OF STUDYING THE PARTIAL REPLACEMENT OF YTTRIUM BY CADMIUM IN COMPOSITION X
V.M. Aliev1, G.I. Isakov1, J.A. Ragimov2, V.I. Eminova3, G.A. Alieva4
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ABSTRACT

A study was carried out of the effect of substituting Y for Cd on the mechanism of formation of excess conductivity in Y1-хCdхBa2Cu3O7-δ (x=0÷1) polycrystals. It is shown that with increasing substitution, the resistivity ρ of the samples increases noticeably, and the critical temperature of transition to the superconducting state Tc decreases. Increasing the cadmium concentration to x = 0.7, the formation of Cooper pairs (T*) and pseudogap (∆*(T)) of the samples first increases up to x = 0.5 and then decreases noticeably. We believe that Cd doping creates internal pressure in YBCO, which leads to an observed increase (∆* (T) due to structural defects.

Keywords: superconductivity, fluctuation conductivity, critical temperature.
DOI:10.70784/azip.1.2025123

Received: 17.01.2025
Internet publishing: 03.03.2025    AJP Fizika E 2025 01 en p.23-27

AUTHORS & AFFILIATIONS

1. Institute of Physics Ministry of Science and Education of Azerbaijan, AZ 1073, Baku, G. Javid Ave., 131
2. Azerbaijan Medical University, Baku, AZ 1022, st. Bakikhanova, 23
3. Azerbaijani-French University under the Azerbaijan State Oil and İndustry University (UFAZ), AZ 1010, Baku, 183 Nizami str.
4. Institute of National HP Ministry of Science and Education of Azerbaijan AZ 1025, Baku, Khojaly Ave., 30
e-mail: v_aliev@bk.ru

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