The influence of Pb and Ag doping on theJc(H,T) dependence and the mechanical properties of Bi-2212 textured rods

Sotelo, A.; Madre, M. A.; Díez, J. C.; Rasekh, Sh.; Angurel, L.A.; Martínez, Elena

doi:10.1088/0953-2048/22/3/034012

Cited by 55 publications

(37 citation statements)

References 22 publications

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“…The size as well as the shape of the grains varies in different cuprate HTSc [18][19][20]. This variation in microstructure in turn leads to different superconducting behavior.…”

Section: Grain Size and Gain Connectivity In Cuprate High Temperaturementioning

confidence: 99%

See 1 more Smart Citation

Exploring the Superconductors with Scanning Electron Microscopy (SEM)

Singh¹,

Sharma²,

Husain³

et al. 2012

Scanning Electron Microscopy

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“…The size as well as the shape of the grains varies in different cuprate HTSc [18][19][20]. This variation in microstructure in turn leads to different superconducting behavior.…”

Section: Grain Size and Gain Connectivity In Cuprate High Temperaturementioning

confidence: 99%

“…Also, A. Sotelo et al [20] have studied the Lead (Pb) and Silver (Ag) doping of Bi-2212 samples. It was found that Pb doping results in the decrease of the transport critical current density (see Fig.…”

Section: (Bi Pb) 2 Sr 2 Ca N−1 Cu N Oymentioning

confidence: 99%

Exploring the Superconductors with Scanning Electron Microscopy (SEM)

Singh¹,

Sharma²,

Husain³

et al. 2012

Scanning Electron Microscopy

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“…Since the discovery of high-Tc superconductivity in Bi-based high-temperature superconductors (HTSC) [1], which provides the most promising materials for potential technological and industrial applications [2][3][4], intense studies have been performed [5][6][7][8][9][10][11][12][13][14][15][16][17][18] in order to improve its critical temperature (Tc), critical current density (Jc), and better understand the structural properties of the system. As it is well-known, the Bi-based superconductor family comprises three different phases which can be described by the Bi 2 Sr 2 Ca n-1 Cu n O 2n+4+y general formula, where n =1, 2 and 3.…”

Section: Introductionmentioning

confidence: 99%

Effect of K substitution on Structural, Electrical and Magnetic Properties of Bi-2212 system

Özçelık

Gürsul

Sotelo

et al. 2014

J Mater Sci: Mater Electron

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In this work, the effect of K in the Bi 2 Sr 2 Ca 1-x K x Cu 2 O 8+y superconductor with x=0.0, 0.05, 0.075, and 0.1, has been investigated. The samples were prepared by a polymer solution technique using polyethyleneimine, PEI. The effects of K substitution have been investigated by electrical resistivity (ρ-T), scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), and magnetic characterizations. SEM and XRD have shown that the Bi-(2212) phase is the major one independently of the K content.Moreover, the microstructure of samples is improved with K content up to x=0.075. Electrical resistivity measurements have found that Tc is slightly higher than 91 K for K contents up to 0.075, decreasing for higher doping in only about 0.5 K. Moreover, this trend is maintained in the magnetic measurements which have shown that the hysteresis loops are increased until 0.075 K contents. The maximum calculated Jc, using Bean's model, has been of around 4.5 10 6 A/cm 2 at 10 K and ∼ 1000 Oe for the 0.05 K doped samples.

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“…Some of them are related with the preparation of high homogeneous precursors with small particle sizes using different synthetic methods [14][15][16][17] while other ones have been centered on the grain orientation [18][19][20]. Moreover, the effect of cationic substitution on the superconducting properties of these materials has been studied in previous works, as for example Pb 2+ by Bi 3+ [21][22][23], or metallic additions, typically metallic Ag [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%