Effects of Ru Addition on the Superconducting Properties of the Eu-123 System

• Authors: M. Škrátek , A. Cigáň , A. Dvurečenskij , M. Majerová , R. Bystrický , P. Billik , J. Maňka
• Languages of publication: EN

Abstracts

EN

Effects of the Ru addition on the structural and superconducting properties of the Eu-123 system were studied. Samples of the nominal composition EuBa₂Cu_{3-x}Ru_{x}O_{7-δ} with x ranging from 0.0 to 0.7 were prepared by the solid state reaction technique from Eu₂O₃, BaCO₃, CuO and RuO₂ precursors at the temperature of 1050°C for 72 h in flowing oxygen and oxygen-annealed at 580°C for 24 h. X-ray diffraction data show the presence of another Ba-Eu-Ru-O phase, for x ≥ 0.03, in addition to the main superconducting phase. AC and DC magnetization characteristics were measured by the compensation method using the second-order SQUID gradiometer at ≈ 77 K and the QD SQUID magnetometer MPMS XL-7 at 20 K. The superconducting properties, T_{c}, ΔT_{c}, change only weakly up to x = 0.2, and magnetization M(H) deteriorates with an increasing Ru content.

Keywords

EN

74.72.-h; 74.25.Ha; 75.30.Et; 75.60.-d

Discipline

• 75.30.Et: Exchange and superexchange interactions(see also 71.70.Gm Exchange interactions)
• 74.72.-h: Cuprate superconductors
• 74.25.Ha: Magnetic properties including vortex structures and related phenomena(for vortices, magnetic bubbles, and magnetic domain structure, see 75.70.Kw)
• 75.60.-d: Domain effects, magnetization curves, and hysteresis(for dynamics of domain structures, see 75.78.Fg)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 225-227

Dates

published

2015-02

Contributors

author

M. Škrátek

• Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

A. Cigáň

• Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

A. Dvurečenskij

• Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

M. Majerová

• Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

R. Bystrický

• Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia
• Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

P. Billik

• Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

J. Maňka

• Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

References

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Identifiers

DOI

10.12693/APhysPolA.127.225