Article ; Online: Relationship between the T C of Smart Meta-Superconductor Bi(Pb)SrCaCuO and Inhomogeneous Phase Content
Nanomaterials, Vol 11, Iss 1061, p
2021 Volume 1061
Abstract: ... transition temperature ( T C ) of B(P)SCCO by electroluminescence (EL) energy injection of inhomogeneous phases ... However, the increase amplitude Δ T C (
| Abstract | A smart meta-superconductor Bi(Pb)SrCaCuO (B(P)SCCO) may increase the critical transition temperature ( T C ) of B(P)SCCO by electroluminescence (EL) energy injection of inhomogeneous phases. However, the increase amplitude Δ T C ( <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="sans-serif">Δ</mi><msub><mi>T</mi><mi>C</mi></msub><mo>=</mo><msub><mi>T</mi><mi>C</mi></msub><mo>−</mo><msub><mi>T</mi><mrow><mi>C</mi><mo>,</mo><mi>p</mi><mi>u</mi><mi>r</mi><mi>e</mi></mrow></msub></mrow></semantics></math> ) of T C is relatively small. In this study, a smart meta-superconductor B(P)SCCO with different matrix sizes was designed. Three kinds of raw materials with different particle sizes were used, and different series of Y 2 O 3 :Sm 3+ , Y 2 O 3 , Y 2 O 3 :Eu 3+ , and Y 2 O 3 :Eu 3+ +Ag-doped samples and pure B(P)SCCO were prepared. Results indicated that the T C of the Y 2 O 3 or Y 2 O 3 :Sm 3+ non-luminescent dopant doping sample is lower than that of pure B(P)SCCO. However, the T C of the Y 2 O 3 :Eu 3+ +Ag or Y 2 O 3 :Eu 3+ luminescent inhomogeneous phase doping sample is higher than that of pure B(P)SCCO. With the decrease of the raw material particle size from 30 to 5 μm, the particle size of the B(P)SCCO superconducting matrix in the prepared samples decreases, and the doping content of the Y 2 O 3 :Eu 3+ +Ag or Y 2 O 3 :Eu 3+ increases from 0.2% to 0.4%. Meanwhile, the increase of the inhomogeneous phase content enhances the Δ T C . When the particle size of raw material is 5 μm, the doping concentration of the luminescent inhomogeneous phase can be increased to 0.4%. At this time, the zero-resistance temperature and onset transition temperature of the Y 2 O 3 :Eu 3+ +Ag doped sample are 4 and 6.3 K higher than ... |
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| Keywords | smart meta-superconductor B(P)SCCO ; inhomogeneous phase content ; critical transition temperature ; EL energy injection ; increase amplitude Δ T C ; Chemistry ; QD1-999 |
| Subject code | 290 ; 333 |
| Language | English |
| Publishing date | 2021-04-01T00:00:00Z |
| Publisher | MDPI AG |
| Document type | Article ; Online |
| Database | BASE - Bielefeld Academic Search Engine (life sciences selection) |
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