Bi-2223 tapes - specific performance for different applications

Arndt, Thomas; Aubele, A.; Krauth, H.; Munz, Martin; Sailer, B.; Szulczyk, A.

doi:10.1109/tasc.2003.812063

Cited by 11 publications

(7 citation statements)

References 5 publications

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“…Resistivity, susceptibility and magnetization experimental measurements in the Bi2223 compound (n = 3) show a transition to the superconducting state at ∼ 110 K [1,2]. In despite of the fact that this compound has a very high viability for its use in industrial and technological applications [3,4,5], we found surprisingly few theoretical reports.…”

Section: Introductionmentioning

confidence: 84%

Effects of Pb doping on structural and electronic properties of Bi2Sr2Ca2Cu3O10

Camargo-Martínez

Baquero

2016

Physica C: Superconductivity and its Applications

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Pb doping effect in the Bi2Sr2Ca2Cu3O10 compound (Bi2223) on the structural and electronic properties were investigated, using the Local Density (LDA) and Virtual Crystal (VCA) approximations within the framework of the Density Functional Theory (DFT), taking as reference the procedure implemented by H.Lin et al. in the Bi2212 compound [Phys. Rev. Lett. 96 (2006) 097001]. Results show that, the incorporation of Pb-dopant in Bi2223 lead a rigid displacement of the Bi/Pb-O bands toward higher energies, with a null contribution at the Fermi level, around the high symmetry point M in the irreducible Brillouin zone, for Pb doping concentration equal to or more than 26%, avoiding the presence of the so-called Bi-O pockets in the Fermi surface, in good agreement with angle-resolved photoemission spectroscopy (ARPES) and nuclear magnetic resonance (NMR) experiments, although a slight metallic character of the Bi-O bonds is still observed which would disagree with some experimental reports. The calculations show that the changes on the structural properties are associated to the presence or absence of the Bi-O pockets in the Fermi surface.

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Section: Introductionmentioning

confidence: 84%

Effects of Pb doping on structural and electronic properties of Bi2Sr2Ca2Cu3O10

Camargo-Martínez

Baquero

2016

Physica C: Superconductivity and its Applications

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“…The model can be used to choose an optimal preparation path for each individual application. Some results have already been presented [4]. For further analysis seven samples (denoted as A-G) were selected from the SEP work.…”

Section: Elementary Conductorsmentioning

confidence: 99%

“…In order to verify the reproducibility of the AC loss data, a number of tape samples were measured both at the University of Twente and at Siemens. The samples A-G were produced by EAS in the course of their loss optimization study [4]. Magnetization losses of these samples were measured as a function of an external field B(t) = B AC sin 2π f t both in parallel and perpendicular to the broad tape surface.…”

Section: Ac Loss Measurementsmentioning

confidence: 99%

Characterization of low AC loss elementary and assembled BSCCO conductors

Lehtonen¹,

Masti²,

Joronen³

et al. 2005

Supercond. Sci. Technol.

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A European consortium has progressed towards elementary and assembled conductors viable for AC applications in the project ACropolis. The main goal was to achieve low AC losses and high critical current densities in tapes developed for AC coils, transformers and cables. In order to verify the performance of tapes an extensive characterization programme was carried out. The dependence of critical current and AC losses on the parameters of the tape manufacturing process were scrutinized. Furthermore, SEM-EDX and DTA/TG analyses were performed to study the material microstructure, and the diffusion coefficient of oxygen through different matrix metals was measured. The homogeneity of the tapes was verified with magnetic knife and Hall sensor experiments. Transport current measurements were performed at different mechanical stress conditions and also the distribution of critical current along long tapes was determined with a quasi-continuous four-point measurement. The results confirmed that the low AC loss conductors can be produced on an industrial scale and they are competitive in power engineering applications.

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“…In this work we present a detailed study of the electronic band structure, the density of states and the Fermi surface for Bi-2223. To our knowledge a theoretical study of this compound has not been yet reported in the literature in spite of the fact that the Bi-2223 compound is one of the most suitable HTSC materials for applications [11][12][13]. Neutron and X-ray diffraction experiments suggest that Bi-2223 presents several orthogonal structures with spacial groups Amaa, A2aa and F mmm [14][15][16] and a tetragonal structure with spatial group I4/mmm [17,18].…”

Section: Introductionmentioning

confidence: 99%

First-principles study of electronic structure of $Bi_2Sr_2Ca_2Cu_3O_{10}$

Camargo-Martínez¹,

Espitia²,

Baquero³

2013

Preprint

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We present for the first time the band structure calculation of Bi2Sr2Ca2Cu3O10 compound in the tetragonal structure (space group I4/mmm). We used the Local Density Approximation (LDA) as in the Wien2k code. We analyze in detail the band structure and the Fermi surface (FS). Our results are in very good agreement with recent experiments. The FS shows the feature known as the Bi-O pocket problem which we associate with the interaction of the O3 atoms with the Cu2-O2 and Bi-O4 planes. Ceramic Bi2Sr2Ca2Cu3O10 stabilized with Pb has been reported as a superconductor with Tc ∼ 100. CdS microparticles were embedded into the ceramic Bi2Sr2Ca2Cu3O10. The composite did show a superconducting phase transition at a lower Tc ∼ 70K. At even lower temperatures re-entrant behavior was observed. The sample regain the superconducting state at ∼ 47K [arXiv:1101.0277 [cond-mat.supr-con]]. This effect is not observe in the ceramic alone. This calculation is useful per ser and also can contribute to a better understanding of this particular re-entrant behavior.

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Bi-2223 tapes - specific performance for different applications

Cited by 11 publications

References 5 publications

Effects of Pb doping on structural and electronic properties of Bi2Sr2Ca2Cu3O10

Effects of Pb doping on structural and electronic properties of Bi2Sr2Ca2Cu3O10

Characterization of low AC loss elementary and assembled BSCCO conductors

First-principles study of electronic structure of $Bi_2Sr_2Ca_2Cu_3O_{10}$

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